doc: Add fosdem21 talk.

2021-01-06 11:27:42 +01:00 · 2021-01-06 11:27:42 +01:00 · b5eb85c1b4
parent 2d43e41352
commit b5eb85c1b4
190 changed files with 7148 additions and 2 deletions
--- a/doc/talks/fosdem20/autocue.org
+++ b/doc/talks/fosdem20/autocue.org
@ -1,4 +1,5 @@
-# time grep -E '^([^#]|$)' autocue.org | sed -re 's/^[*]+.*/. . slide. ./' | head -264 | tr '\n' ' ' | espeak -s 110 -l 1
+# grep -E '^([^#]|$)' autocue.org | sed -re 's/^[*]+.*/. . slide. ./' | head -264 | tr '\n' ' ' | espeak -s 110 -l 1 --stdin -w fosdem20.wav
+# ffmpeg -i fosdem21.wav |& grep Duration:
 #+TITLE: GNU Mes

 * Introduction
--- a/doc/talks/fosdem21/Guix.png
+++ b/doc/talks/fosdem21/Guix.png
--- a/doc/talks/fosdem21/LISP-1-5-page-13-bottom.png
+++ b/doc/talks/fosdem21/LISP-1-5-page-13-bottom.png
--- a/doc/talks/fosdem21/LISP-1.5-page-13-bottom.png
+++ b/doc/talks/fosdem21/LISP-1.5-page-13-bottom.png
--- a/doc/talks/fosdem21/LISP-1.5-page-13.pdf
+++ b/doc/talks/fosdem21/LISP-1.5-page-13.pdf
--- a/doc/talks/fosdem21/LISP-1.5-page-13.png
+++ b/doc/talks/fosdem21/LISP-1.5-page-13.png
--- a/doc/talks/fosdem21/NOTES
+++ b/doc/talks/fosdem21/NOTES
@ -0,0 +1,81 @@
+https://www.scivision.dev/beamer-latex-dual-display-pdf-notes/
+
+* oproep: wereld moet het gaan begrijpen
+* hardware boys
+* politiek actiever worden om dit te vereisen: trusted computing base
+* free software: moet mensenrecht worden
+* need your help
+
+
+Technical requirements: Please adhere to the following technical requirements for your FOSDEM 2021 presentation video:
+
+    resolution: 1280x720
+    frame rate: 25 fps
+    video codec: h264 video codec, main profile
+    video bitrate: <= 2Mbit/s
+    audio codec: aac audio codec
+    audio sample rate: 48 KHz mono
+    audio bitrate: 128 Kbit/s
+    media container: mp4
+
+
+https://github.com/stikonas/live-bootstrap
+
+
+On May 18, 2020, GCC moved away from ISO/IEC C++03 standard to ISO/IEC
+C++11 standard needed to compile, bootstrap, the compiler itself.
+
+Supported releases
+
+
+GCC 4.9.4 released [2016-08-03]
+
+June 12, 2014
+
+The GNU project and the GCC developers are pleased to announce the release of GCC 4.7.4.
+
+
+GCC 4.8.1 will be C++11 feature-complete [2013-04-01]
+    Support for C++11 ref-qualifiers was added to the GCC 4.8 branch, making G++ the first C++ compiler to implement all the major language features of the C++11 standard. This functionality will be available in GCC 4.8.1.
+
+* hoe sturen we olietanker bij
+
+* als je bootstrappen serieus wilt nemen, zullen we dit moeten
+  supporten
+
+* voldongen feit, geen awareness
+
+** megolomane visie **: all software must be bootstrappable
+
+** niet-bootstrappable: geen controle over binaries, trust
+
+*** Choices: *giving up*
+**** finding great reasons for giving up
+
+ik houd van yoghurt, melk is verzekerd, moet ik vasthouden aan yoghurt
+* stel nou dat iemand mijn yoghurt, lawyers
+* stel nou op n dag, mijn yoghurt is bedorven
+
+* it just doesn't feel right
+
+* i call upon you to understand what it means for You (you, me, the free
+  software world, humanity)
+
+* ultieme vrijheid: als je niemand nodig hebt
+* je hebt niks aan broncode, het moet omgezet
+* 0001100101 machine code is abundant, maar geen garantie
+* imagine this press release: intel,ppc,arm are all compromised
+
+* wat gaat de wereld hiermee doen?
+** gaan we een vrijere wereld cre-eren?
+** do we just forget this idea, and keep trusting yoghurt
+
+** bitcoin example
+** sit back and place your bets on the apocolypse
+** hardware
+
+** less control or more control ... place your bets
+** bootstrappability pandamic
+** enormous gamble
+** bitcoin?
+** health care?
--- a/doc/talks/fosdem21/RECORD
+++ b/doc/talks/fosdem21/RECORD
@ -0,0 +1,15 @@
+guix environment --ad-hoc espeak xwininfo recordmydesktop
+xwininfo
+recordmydesktop --delay 3 --windowid 0x1e0000e -x 50 -y 130 --width 1280 --height 960 --no-cursor
+
+recordmydesktop --delay 3 --fps 15 --windowid 0x1e0000e -x 375 -y 340 --width 480 --height 350 --no-cursor
+
+# stop after 1 sec of silence
+sox -t alsa default recording.wav silence 1 0.1 5% 1 1.0 5%
+
+# stop after 20 sec of silence
+sox -t alsa default recording.wav silence 1 0.1 5% 20 1.0 5%
+
+ffmpeg -i recording-0.ogg -i recording-1.ogg -filter_complex '[0:0][1:0]concat=n=2:v=0:a=1[out]' -map '[out]' concat.ogg
+
+ffmpeg $(for i in recordings/*.ogg; do echo "-i $i "; done) -filter_complex '[0:0][1:0][2:0][3:0]concat=n=47:v=0:a=1[out]' -map '[out]' fosdem21.ogg
--- a/doc/talks/fosdem21/add-evil-yoghurt-a.png
+++ b/doc/talks/fosdem21/add-evil-yoghurt-a.png
--- a/doc/talks/fosdem21/add-evil-yoghurt.png
+++ b/doc/talks/fosdem21/add-evil-yoghurt.png
--- a/doc/talks/fosdem21/add-yoghurt.png
+++ b/doc/talks/fosdem21/add-yoghurt.png
--- a/doc/talks/fosdem21/autocue.org
+++ b/doc/talks/fosdem21/autocue.org
@ -0,0 +1,331 @@
+# grep -E '^([^#]|$|^[*] )' autocue.org | grep -v '^[*] ' | sed -re 's/^[*]+.*/. . slide. ./' | head -274 | tr '\n' ' ' | espeak -s 110 -l 1  --stdin -w fosdem21.wav
+# ffmpeg -i fosdem21.wav |& grep Duration:
+#+TITLE: GNU Mes
+
+* Top
+
+** GNU Mes
+
+hello, i am janneke.
+
+this talk is about GNU Mes and the ongoing effort to remove all
+the binaries that we inject into our free software stack.
+
+* Introduction
+
+** Introduction
+
+at the end of my talk i hope you have learned what bootstrapping is about.
+
+** Full Source Bootstrap: Why?
+
+richard stallman is helping us understand
+that software freedom is a human right
+
+if we loose one of these rights,
+it becomes much harder to maintain our freedom.
+
+every time you say free software instead of Open Source, for example,
+you are already helping.
+
+we need to care for our free software rights;
+if we neglect bootstrappability or if we lose it,
+we also loose freedom of our computing.
+
+** Full Source Bootstrap: GNU Mes
+
+to crack the chicken and egg problem that bootstrapping is,
+i wrote GNU Mes.
+
+MesCC is a C99 compiler written in a subset of Guile Scheme
+and comes with Mes, a Scheme interpreter to run it.
+
+** The Holy Grail
+
+The Stage0 project is an amazing bootstrap story
+it all starts with a 357-byte, well-audited binary, hex0,
+and as some of you may have heard...
+
+** Full Source Bootstrap: *WE DID IT!!!*
+. . we . . did . . it . .
+
+when i started this, five years ago my youngest daughter was a big messi
+and fc barcelona fan.  that inpsired me while i was working on mescc.
+
+** Full Source Bootstrap: hex0 => M2-Planet => GNU Mes
+GNU Mes can now be built by M2-Planet,
+and thus bootstrapped from these initial 357 bytes
+** A big problem, predicted 40y ago
+
+in the eighties, ken thompson showed us in his Turing lecture, that we
+were having a big problem in computing.
+
+** Journey to the Source?
+his message has mostly been ignored.
+
+every day we are becoming more dependent on more and larger binaries
+to create our free software systems.
+
+* Reproducibility
+
+** Carl Dong -- bitcoin build system security
+
+the importance to stop this trend was evident to bitcoin developer Carl
+Dong of Chaincode Labs.
+
+i warmly recommend his talk he gave at the breaking bitcoin conference
+in 2019, it will only take 18 minutes of your time.
+
+** Reproducible-Builds.org
+
+carl dong explains that bitcoin, driven by the wish to provide secure
+bitcoin downloads, have implemented Gitian, a system that uses
+reproducible builds.
+
+** What is a Bootstrap?
+
+let's say you wrote the first ever GNU CC compiler and you wrote it in
+C; it is impossible to compile this C source code into an executable gcc
+program.
+
+** How to Bootstrap: An Old Recipe...
+
+ah but that's like making yoghurt: use fresh milk and just add some
+yoghurt leftover from yesterday.
+
+** How to Bootstrap: Create your second GCC
+
+using this insight, we can now create our second GCC!
+
+** Pour milk
+
+we take fresh, security-audited milk.
+
+** Add yoghurt
+
+we publish the recipe, so that others may verify the result.
+
+** We're reproducible
+
+and low and behold, your second compiler exactly matches ours!
+
+as long as you follow our recipe.
+
+** Add evil yoghurt
+
+and use the exact same, FIRST compiler...
+
+** We're reproducible
+
+everyone is ...
+
+** Evil yoghurt
+
+just as bug-free and secure
+
+** We're reproducibly malicous
+
+as our shared, FIRST compiler was
+
+** Reproducibility is not enough
+
+reproducibility is no substitute for bootstrappability
+
+** Reproducibility plus clean source code is not enough
+
+and while bug-free source code remains important, we need something
+else.
+
+* Bootstrappability
+** Guix /pronounced geeks/
+
+enter GNU Guix.
+
+in Guix, we implemented the Full Source Bootstrap.
+
+** NLnet Foundation
+
+so we are very excited that NlNet provided a grant to make that possible
+
+** WE DID IT!  We did what?
+
+to make GNU Mes ready for M2 Planet,
+we first removed all pre-processor statements,
+then switched from SICP-like number-based cells
+to pointer-based cells
+
+an interesting operation, notably for the garbage collector
+
+then, we rewrote all non-supported C constructs for M2 Planet
+in a way that GCC also still likes them
+
+notice how easy it sounds, now that it has been done
+
+on, to integrate this new mes into guix
+
+** Bottom of Guix package graph
+
+on the wip-full-source-bootstrap branch, this is what the bottom of the
+graph looks like
+
+i think a generated graph like this is very cool,
+an introduction works probably better when we remove some detail
+
+** Full Source Bootstrap: Stage 0
+Stage0 was a big inspiration to start working on mes, to address
+bootstrappability.
+
+the first stage creates the hex1 assembler from the initial hex0 seed.
+
+it is the binary form of as ASCII-equivalent.  therefore we can bless it
+as source and have our full source bootstrap.
+
+hex1 is just a bit richer than hex0, but not a language to write big
+programs in.
+
+** Full Source Bootstrap: Stage 1
+
+the second stage builds the hex2 linker, the M1 Macro assembler and
+M2-Planet.
+
+** Full Source Bootstrap: Stage 2
+
+the third stage builds mes and the mes c library
+
+** Full Source Bootstrap: Stage mes
+
+after mes we build a bootstrappable fork of tinycc, that we maintain
+ourselves.
+
+from mes onwards, we need a shell.
+
+we use gash with gash-utils and cheat just a bit by running them on
+bootstrap guile; the driver we need for guix anyway.
+
+in the future we would like to run gash and gash utils on mes.
+
+you will forgive us this little lie, any shell with utilities will do
+fine here anyway.
+
+** Full Source Bootstrap: Stage mesboot
+
+from tcc it goes up via ancient binutils and glibc versions to gcc.
+
+you may notice that most of the packages in this graph are unmaintained.
+
+that is a problem.
+
+anyway, this brings us to
+
+** Long path: Full Source Bootstrap
+
+a full GNU/Linux system that is bootstrapped from 357-bytes.
+
+** Trusted Computing Base
+
+anything else?
+** Trusted Computing Base
+
+when building a package on Guix, the trusted computing base includes
+the build daemon and the linux kernel.
+
+ludovic has built a package in the intial ramdisk, thereby removing the
+build daemon from the trusted computing base.
+
+an obvious next step is linux.
+
+mes v0.22 now runs on the hurd, a micro kernel is another possibility to
+reduce the trusted computing base.
+
+last year GNU Guix has made it very easy to run the hurd in a vm,
+a so-called childhurd.
+
+** What's Next?
+
+apart from the real big plans, there is lots of fun work ahead, let's
+find some time and money for that.
+
+* Freedom
+** Free Software as a Human Right
+
+at the start of this talk i showed this image with richard's view on
+free software
+
+** Freedom of Computing
+
+have i strayed too far when i reinterpret this as freedom of computing?
+
+if we have free software, and our binaries are compromised, do we really
+have freedom of computing, can we enjoy this human right?
+
+** Moving target: Are we losing GCC?
+when gnu guix started, GCC could be bootstrapped by any C compiler.
+
+four years later, when gnu mes started, gcc also needed C++,
+ensuring bootstrappability would only require for GCC developers
+to continue maintaining 4.6 or 4.7
+
+after four years of work we can bootstrap gcc-4.7, our target is moving.
+
+is it moving faster than we are?
+
+** Contemplate: What is happening?
+
+i call upon you to understand the problem of bootstrapping
+
+to contemplate on where we are, and where we going
+
+and to decide where you would really want to go
+** Joy of Source
+
+are we doing this only to counter the trusting trust attack?
+
+i'm not sure, i think that building from source is the proper way to do
+computing; and the trusting trust attack is only a symptom of confusing
+a binary substitute with the compilation of source code.
+
+** Choices: More control, or less control?
+
+apparently, bitcoin users rather have more control over what their
+computer does when it handles money.
+
+so it seems to me that our choices are simple: raise awareness and slay
+this dragon together, or sit back and place our bets on what the
+apocalypse will look like.
+
+i mean, why bother, i'm betting heavily on climate change.
+
+* Thanks
+
+i am very grateful for getting so much help and seeing this crazy
+project grow!
+
+** Want to join?
+
+that's all folks!
+
+*** You can help
+  * make Guix run on Mes
+  * write a bootstrappable syntax-case
+  * simplify MesCC and target GCC-4.6
+  * bootstrap NixOS, Debian
+  * port MesCC to the Hurd, FreeBSD
+  * spread the message
+  * retweet =@janneke_gnu= =janneke@octodon.social=
+
+*** Connect
+    * irc  freenode.net [[irc://bootstrappable@freenode.net][#bootstrappable]] [[irc://guix@freenode.net][#guix]]
+    * mail [[mailto:bug-mes@gnu.org][bug-mes@gnu.org]] [[mailto://guix-devel@gnu.org][guix-devel@gnu.org]]
+    * git  [[https://git.savannah.gnu.org/git/mes.git][https://git.savannah.gnu.org/git/mes.git]]
+    * web  [[http://bootstrappable.org][bootstrappable.org]]
+
+* legalese
+  Copyright \copy 2020,2021 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+
+  #+BEGIN_QUOTE
+  Permission is granted to copy, distribute and/or modify this document
+  under the terms of the GNU Free Documentation License, Version 1.3 or
+  any later version published by the Free Software Foundation; with no
+  Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
+  Texts.
+  #+END_QUOTE
--- a/doc/talks/fosdem21/beamercolorthemeX.sty
+++ b/doc/talks/fosdem21/beamercolorthemeX.sty
@ -0,0 +1,27 @@
+% GNU Mes --- Maxwell Equations of Software
+% Copyright © 2017 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+%
+% This file is part of GNU Mes.
+%
+% GNU Mes is free software; you can redistribute it and/or modify it
+% under the terms of the GNU General Public License as published by
+% the Free Software Foundation; either version 3 of the License, or (at
+% your option) any later version.
+%
+% GNU Mes is distributed in the hope that it will be useful, but
+% WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+
+\mode<presentation>
+
+\usecolortheme{spruce}
+\setbeamercolor*{structure}{fg=blue!25!white}
+\setbeamercolor*{structure}{fg=MSUgreen!80!white}
+\setbeamercolor{block title}{use=structure,fg=white,bg=structure.fg!75!black}
+
+\mode
+<all>
--- a/doc/talks/fosdem21/beamerthemeX.sty
+++ b/doc/talks/fosdem21/beamerthemeX.sty
@ -0,0 +1,36 @@
+% GNU Mes --- Maxwell Equations of Software
+% Copyright © 2017 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+%
+% This file is part of GNU Mes.
+%
+% GNU Mes is free software; you can redistribute it and/or modify it
+% under the terms of the GNU General Public License as published by
+% the Free Software Foundation; either version 3 of the License, or (at
+% your option) any later version.
+%
+% GNU Mes is distributed in the hope that it will be useful, but
+% WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+
+\mode<presentation>
+
+\setbeamertemplate{navigation symbols}{}
+
+\newif\ifbeamer@secheader
+\beamer@secheaderfalse
+
+\DeclareOptionBeamer{secheader}{\beamer@secheadertrue}
+\ProcessOptionsBeamer
+
+\usecolortheme{X}
+\useinnertheme[shadow]{rounded}
+\useoutertheme{infolines}
+
+\ifbeamer@secheader\else\setbeamertemplate{headline}[default]\fi
+
+\mode
+<all>
--- a/doc/talks/fosdem21/bitcoin-carl-dong.png
+++ b/doc/talks/fosdem21/bitcoin-carl-dong.png
--- a/doc/talks/fosdem21/boot-strap.png
+++ b/doc/talks/fosdem21/boot-strap.png
--- a/doc/talks/fosdem21/boot-strip.png
+++ b/doc/talks/fosdem21/boot-strip.png
--- a/doc/talks/fosdem21/bootstrap-graph.png
+++ b/doc/talks/fosdem21/bootstrap-graph.png
--- a/doc/talks/fosdem21/bootstrap.png
+++ b/doc/talks/fosdem21/bootstrap.png
--- a/doc/talks/fosdem21/bowl-empty-spoon.png
+++ b/doc/talks/fosdem21/bowl-empty-spoon.png
--- a/doc/talks/fosdem21/bowl-empty.png
+++ b/doc/talks/fosdem21/bowl-empty.png
--- a/doc/talks/fosdem21/chain.png
+++ b/doc/talks/fosdem21/chain.png
--- a/doc/talks/fosdem21/debian+debian.png
+++ b/doc/talks/fosdem21/debian+debian.png
--- a/doc/talks/fosdem21/dot
+++ b/doc/talks/fosdem21/dot
@ -0,0 +1,12 @@
+dot -T png < stage-0.dot > stage-0.png
+dot -T png < stage-0.dot > stage-0.png
+dot -T png < stage-1.dot > stage-1.png
+dot -T png < stage-2.dot > stage-2.png
+dot -T png < stage-mes.dot > stage-mes.png
+dot -T png < stage-mesboot.dot > stage-mesboot.png
+dot -T png < stage-mesboot.dot > stage-mesboot.png
+
+dot -T png < gcc-core-mesboot0-fsb.dot > gcc-core-mesboot0-fsb.png
+dot -T png < gcc-core-mesboot0-fsb-unversioned.dot > gcc-core-mesboot0-fsb-unversioned.png
+
+dot -T png < gcc-core-mesboot0-fsb-no-guile-unversioned.dot > gcc-core-mesboot0-fsb-no-guile-unversioned.png
--- a/doc/talks/fosdem21/egg.png
+++ b/doc/talks/fosdem21/egg.png
--- a/doc/talks/fosdem21/egg.xcf
+++ b/doc/talks/fosdem21/egg.xcf
--- a/doc/talks/fosdem21/empty-egg.png
+++ b/doc/talks/fosdem21/empty-egg.png
--- a/doc/talks/fosdem21/evil-yoghurt-a.png
+++ b/doc/talks/fosdem21/evil-yoghurt-a.png
--- a/doc/talks/fosdem21/evil-yoghurt-black.png
+++ b/doc/talks/fosdem21/evil-yoghurt-black.png
--- a/doc/talks/fosdem21/evil-yoghurt-rect-a.png
+++ b/doc/talks/fosdem21/evil-yoghurt-rect-a.png
--- a/doc/talks/fosdem21/evil-yoghurt-rect-black.png
+++ b/doc/talks/fosdem21/evil-yoghurt-rect-black.png
--- a/doc/talks/fosdem21/evil-yoghurt.png
+++ b/doc/talks/fosdem21/evil-yoghurt.png
--- a/doc/talks/fosdem21/fosdem21.ogg
+++ b/doc/talks/fosdem21/fosdem21.ogg
--- a/doc/talks/fosdem21/fosdem21.org
+++ b/doc/talks/fosdem21/fosdem21.org
@ -0,0 +1,447 @@
+#+TITLE: GNU Mes
+#+TITLE: \smaller[2]{-- Full Source Bootstrap}
+#+DATE:2021-02-07
+#+EMAIL: janneke@gnu.org
+#+AUTHOR: janneke@gnu.org
+#+COPYRIGHT: janneke (Jan) Nieuwenhuizen <janneke@gn.org>
+#+LICENSE: GNU Free Documentation License, version 1.3 or later.
+#+OPTIONS: H:2 @:t ::t
+#+OPTIONS: tex:t latex:t todo:t tasks:t
+#+LATEX_HEADER:\institute{FOSDEM'21}
+#+LATEX_HEADER:\def\ahref#1#2{\htmladdnormallink{#2}{#1}}
+#+LATEX_CLASS: beamer
+#+LATEX_CLASS_OPTIONS: [presentation]
+#+LaTeX_CLASS_OPTIONS: [aspectratio=169]
+#+LATEX_HEADER: \usepackage{relsize}
+#+LATEX_HEADER: \usepackage{hyperref}
+#+LATEX_HEADER: \mode<beamer>{\usetheme{X}}
+#+KEYWORDS: GNU, Mes, Mes, Guix, bootstrappable, reproducible
+#+BEAMER_THEME: X
+#+BEAMER_FRAME_LEVEL: 2
+#+COLUMNS: %45ITEM %10BEAMER_ENV(Env) %10BEAMER_ACT(Act) %4BEAMER_COL(Col) %8BEAMER_OPT(Opt)
+# #+LATEX_HEADER:\usepackage{pgfpages}
+# #+LATEX_HEADER:\setbeameroption{show notes}
+# #+LATEX_HEADER:\setbeameroption{show notes on second screen=left}
+
+* Introduction
+** Introduction
+  :PROPERTIES:
+  :BEAMER_env: note
+  :END:
+hello, i am janneke.
+
+this talk is about GNU Mes and the ongoing effort to remove all
+the binaries that we inject into our free software stack.
+
+** Full Source Bootstrap: Why?
+
+#+LATEX:{\hspace{-0.5cm}\begin{frame}[plain]
+#+LATEX:{{\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{human-rights-rms.png}}}
+#+LATEX:\end{frame}}
+
+** Full Source Bootstrap: GNU Mes
+
+*** GNU Mes
+   :PROPERTIES:
+   :BEAMER_COL: 0.6
+   :BEAMER_ENV: block
+   :END:
+
+  * A Scheme interpreter written in ~5,000LOC of simple C.
+
+  * A C compiler written in Scheme.
+
+  * Built on LISP: eval/apply, the *Maxwell Equations of Software*.
+*** LOGO
+   :PROPERTIES:
+   :BEAMER_COL: 0.3
+   :BEAMER_ENV: quote
+   :END:
+#+LATEX:\rightskip=2cm\includegraphics[width=0.7\textwidth]{mes.png}
+
+** The Holy Grail: Stage0's hex0 => Mes
+   #+BEGIN_QUOTE
+The holy grail of bootstrappability will be connecting mes to hex0.
+
+                                       -- Carl Dong, Chaincode Labs
+   #+END_QUOTE
+
+** Full Source Bootstrap: *WE DID IT!!!*
+#+LATEX:\begin{center}
+#+LATEX:\includegraphics[width=0.4\textwidth]{fsb-logo-guile-guix-mes.png}
+#+LATEX:\end{center}
+
+** Full Source Bootstrap: hex0 => M2-Planet => GNU Mes
+
+*** GNU Mes
+   :PROPERTIES:
+   :BEAMER_COL: 0.6
+   :BEAMER_ENV: block
+   :END:
+
+  * A Scheme interpreter written in ~5,000LOC of simple C, *or* M2.
+
+  * A C compiler written in Scheme.
+
+  * Built on LISP: eval/apply, the *Maxwell Equations of Software*.
+*** LOGO
+   :PROPERTIES:
+   :BEAMER_COL: 0.3
+   :BEAMER_ENV: quote
+   :END:
+#+LATEX:\rightskip=2cm\includegraphics[width=0.7\textwidth]{mes.png}
+
+** A big problem, predicted 40y ago
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.4cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{ken-thompson.png}}}
+#+LATEX:\end{frame}}
+** Journey to the Source?
+#+LATEX:\hspace{115mm}\tiny{???}\\[-6.0ex]
+#+LATEX:\hspace{ 90mm}\tiny{Soft Landing Systems}\\[-0.5ex]
+#+LATEX:\hspace{ 82mm}\tiny{0.90 .. 0.01}\\[-1.0ex]
+#+LATEX:\hspace{ 74mm}\tiny{0.93rc5}\\[-1.1ex]
+#+LATEX:\hspace{ 66mm}\tiny{0.93rc6}\\[-1.0ex]
+#+LATEX:\hspace{ 60mm}\tiny{1.1 buzz}\\[-1.0ex]
+#+LATEX:\hspace{ 54mm}\tiny{1.2 rex}\\[-1.0ex]
+#+LATEX:\hspace{ 48mm}\tiny{1.3 bo}\\[-1.0ex]
+#+LATEX:\hspace{ 42mm}\tiny{2.0 hamm}\\[-0.6ex]
+#+LATEX:\hspace{ 37mm}\tiny{2.1 slink}\\[-1.1ex]
+#+LATEX:\hspace{ 30mm}\scriptsize{2.2 potato}\\[-1.1ex]
+#+LATEX:\hspace{ 24mm}\footnotesize{3.0 woody}\\[-1.1ex]
+#+LATEX:\hspace{ 19mm}\small{3.1 sarge}\\[-1.0ex]
+#+LATEX:\hspace{ 14mm}\normalsize{4 etch}\\[-1.1ex]
+#+LATEX:\hspace{ 10mm}\large{5 lenny}\\[-1.2ex]
+#+LATEX:\hspace{ 6mm}\Large{6 squeeze}\\[-1.2ex]
+#+LATEX:\hspace{ 3mm}\LARGE{7 wheezy}\\[-1.2ex]
+#+LATEX:\hspace{ 1mm}\huge{8 jessie}\\[-1.3ex]
+#+LATEX:\hspace{ 0mm}\Huge{9 stretch}\\[-0.2ex]
+#+LATEX:\hspace{ 0mm}\Huge{10 buster}
+#+LATEX:\normalsize
+   #+BEGIN_QUOTE
+As time goes on we will expire the binary packages for old releases.
+Currently we have binaries for squeeze, lenny, etch, sarge, woody,
+potato, slink, hamm and bo available, and only source code for the other
+releases.  -- \ahref{https://www.debian.org/distrib/archive}{www.debian.org/distrib/archive}
+   #+END_QUOTE
+
+* Reproducibility
+** Carl Dong -- bitcoin build system security
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{bitcoin-carl-dong.png}}}
+#+LATEX:\end{frame}}
+
+** Reproducible-Builds.org
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{reproducible-builds.png}}}
+#+LATEX:\end{frame}}
+
+** What is a Bootstrap?
+*** Impossible task: pull yourself up on your boot straps
+
+#+LATEX:\rightskip=2cm\includegraphics[width=0.2\textwidth]{boot-strap.png}
+
+*** Software: to create your first: kernel, shell, C compiler, ...
+
+#+LATEX:\includegraphics[width=0.12\textwidth]{gcc.png}
+#+LATEX:{\fontsize{20}{10}\selectfont source\normalsize}
+#+LATEX:{\fontsize{40}{20}\selectfont + ?? =}
+#+LATEX:\includegraphics[width=0.12\textwidth]{gcc.png}
+#+LATEX:{\fontsize{20}{10}\selectfont binary\normalsize}
+
+** How to Bootstrap: An Old Recipe...
+#+LATEX:\rightskip=2cm\includegraphics[width=0.3\textwidth]{yoghurt.png}\\
+   #+BEGIN_QUOTE
+Recipe for yoghurt: Add yoghurt to milk -- Anonymous
+   #+END_QUOTE
+** How to Bootstrap: Create your second GCC
+
+*** IGNORE
+   :PROPERTIES:
+   :BEAMER_env: ignoreheading
+   :END:
+
+Traditional recipe: like yoghurt
+#+LATEX:\\[1cm]
+#+LATEX:\includegraphics[width=0.15\textwidth]{gcc.png}
+#+LATEX:{\fontsize{10}{5}\selectfont source\normalsize}
+#+LATEX:{\fontsize{40}{20}\selectfont +}
+#+LATEX:\includegraphics[width=0.15\textwidth]{gcc.png}
+#+LATEX:{\fontsize{10}{5}\selectfont binary - 1\normalsize}
+#+LATEX:{\fontsize{40}{10}\selectfont = \normalsize}
+#+LATEX:\includegraphics[width=0.15\textwidth]{gcc.png}
+#+LATEX:{\fontsize{10}{5}\selectfont binary\normalsize}
+#+LATEX:\\[1cm]
+
+*** IGNORE
+   :PROPERTIES:
+   :BEAMER_env: ignoreheading
+   :END:
+
+... and done!
+
+** Pour milk
+#+LATEX:{\begin{frame}[plain]
+#+LATEX:{\vskip-2.4cm{\hspace*{-2cm}\includegraphics[width=1.2\paperwidth,height=1.1\paperheight]{pour-milk.png}}}
+#+LATEX:\end{frame}}
+
+** Add yoghurt
+#+LATEX:{\begin{frame}[plain]
+#+LATEX:{\vskip-2.4cm{\hspace*{-2cm}\includegraphics[width=1.2\paperwidth,height=1.1\paperheight]{add-yoghurt.png}}}
+#+LATEX:\end{frame}}
+
+** We're reproducible
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{we-are-reproducible.png}}}
+#+LATEX:\end{frame}}
+
+** Add evil yoghurt
+#+LATEX:{\begin{frame}[plain]
+#+LATEX:{\vskip-2.4cm{\hspace*{-2cm}\includegraphics[width=1.2\paperwidth,height=1.1\paperheight]{add-evil-yoghurt.png}}}
+#+LATEX:\end{frame}}
+
+** We're reproducible
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{we-are-reproducible.png}}}
+#+LATEX:\end{frame}}
+
+** Evil yoghurt
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{\vskip-2.4cm{\hspace*{-2cm}\includegraphics[width=1.2\paperwidth,height=1.1\paperheight]{evil-yoghurt-rect-black.png}}}
+#+LATEX:\end{frame}}
+
+** We're reproducibly malicous
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{we-are-reproducibly-malicious.png}}}
+#+LATEX:\end{frame}}
+
+** Reproducibility is not enough
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{reproducibility-is-not-enough.png}}}
+#+LATEX:\end{frame}}
+
+** Reproducibility plus clean source code is not enough
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{reproducibility+clean-source-code.png}}}
+#+LATEX:\end{frame}}
+
+* Bootstrappability
+** Guix /pronounced geeks/
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{guix-pronounced-geeks.png}}}
+#+LATEX:\end{frame}}
+** NLnet Foundation
+#+LATEX:\begin{center}
+#+LATEX:\includegraphics[width=0.3\paperwidth,height=0.5\paperheight]{nl-net.png}
+#+LATEX:\end{center}
+
+** WE DID IT!  We did what?
+
+*** Adapt Mes and Mes C Library for M2-Planet
+ * #define FOO => ...; #if BAR => ...; CAR (x) => x->car
+ * remove global and static array data
+ * foo.bar => foo->bar
+ * rewrite pointer arithmetic
+ * rewrite garbage collector
+ * mature M2-Planet
+ * ...
+*** Integrate Full Source Bootstrap
+ * package M2-Planet
+ * remove (dependency on) bootstrap seeds
+ * ...
+** Bottom of Guix package graph
+#+LATEX:{\hspace{-0.55cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-1.9cm\includegraphics[width=1\paperwidth,height=1\paperheight]{gcc-core-mesboot0-fsb-no-guile-unversioned.png}}}
+#+LATEX:\end{frame}}
+
+** Full Source Bootstrap: Stage 0
+#+LATEX:\rightskip=2cm\includegraphics[width=0.8\textwidth]{stage-0.png}
+** Full Source Bootstrap: Stage 1
+#+LATEX:\rightskip=2cm\includegraphics[width=0.80\textwidth]{stage-1.png}
+** Full Source Bootstrap: Stage 2
+#+LATEX:\vskip-2mm\rightskip=2cm\includegraphics[width=0.55\textwidth]{stage-2.png}
+** Full Source Bootstrap: Stage mes
+#+LATEX:\rightskip=2cm\includegraphics[width=0.70\textwidth]{stage-mes.png}
+** Full Source Bootstrap: Stage mesboot
+#+LATEX:\rightskip=2cm\includegraphics[width=0.80\textwidth]{stage-mesboot.png}
+** Long path: Full Source Bootstrap
+#+LATEX:\Large
+*** GNU Mes
+   :PROPERTIES:
+   :BEAMER_COL: 0.75
+   :BEAMER_ENV: quote
+   :END:
+#+LATEX:\normalfont
+ * *500+ MB:* no bootstrap
+ * *252 MB:* GNU Guix System v1.0
+ * *145 MB:* Reduced Binary Seed
+   + master branch
+   + +GCC+, +GLIBC+, +Binutils+
+   + + MesCC-Tools, + Mes
+ * *57 MB:* Scheme-only
+   + wip-bootstrap branch
+   + +Awk+, +Bash+, +Bzip2+, +GNU Core Utilities+, +Grep+, +Gzip+,
+ +Make+, +Patch+, +Sed+, +Tar+, and +XZ+.
+   + + Gash (source only!)
+ * *357 bytes:* Full Source
+   + +MesCC-Tools+, +Mes+
+   + + Stage0: 357 bytes (x86)
+#+LATEX:\vskip 1cm
+*** LOGO
+   :PROPERTIES:
+   :BEAMER_COL: 0.25
+   :BEAMER_ENV: quote
+   :END:
+
+#+LATEX:\includegraphics[height=0.7cm]{logos/debian.png}
+#+LATEX:\includegraphics[height=0.7cm]{logos/guix.png}\includegraphics[height=0.4cm]{logos/nixos.png}\\[0.4cm]
+#+LATEX:\includegraphics[height=0.7cm]{logos/guix.png}\\[1cm]
+#+LATEX:\includegraphics[height=0.7cm]{logos/guix.png}\\
+#+LATEX:\vskip 4.2cm
+#+LATEX:\normalsize
+
+** Trusted Computing Base
+#+LATEX:{\hspace{-1.2cm}\begin{frame}[plain]
+#+LATEX:{{\vskip-2.6cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{bowl-empty-spoon.png}}}
+#+LATEX:\end{frame}}
+
+** Trusted Computing Base
+  * Source code
+  * Binary seeds
+  * Guix System
+  * Linux
+  * Guix's Childhurds (Hurd in VM)
+
+** What's Next?
+
+*** wip-full-source-bootstrap
+ - release mes-0.24
+ - update and merge
+*** wip-arm-bootstrap
+ - finish the bootstrap: currently stuck at glibc-mesboot0 (2.2.5)
+ - release mes-0.23
+ - update and merge
+*** RISC-V
+ - remove gcc-2.95 from the bootstrap
+ - port RISC-V extensions to gcc-4.6
+* Freedom
+** Free Software as a Human Right
+
+#+LATEX:{\hspace{-0.5cm}\begin{frame}[plain]
+#+LATEX:{{\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{human-rights-rms.png}}}
+#+LATEX:\end{frame}}
+
+** Freedom of Computing
+
+*** Free Software == Freedom of Computing
+
+  * Inspect source         => Free Software
+  * Binary matches source? => Reproducible builds
+  * Toolchain compromised? => Bootstrappable builds
+  * Hardware trustable?    => DDC, free hardware
+
+** Moving target: Are we losing GCC?
+
+*** June 12, 2014
+GCC 4.7.4, the final "bootstrappable", already a *huge* download
+
+*** August 3rd, 2016
+GCC 4.9.4 released, as of 4.8 requires C++03 to bootstrap
+
+*** May 18, 2020
+GCC moved away from C++03 and now needs to C++11 to bootstrap
+** Contemplate: What is happening?
+   #+BEGIN_QUOTE
+   It just doesn't *feel* right
+
+                              -- Vagrant Cascadian, Debian developer
+   #+END_QUOTE
+
+** Joy of Source
+#+LATEX:\large
+   #+BEGIN_QUOTE
+Vulnerability to a *trusting trust attack* is a symptom of an
+unauditable or missing bootstrap story.  -- janneke
+   #+END_QUOTE
+#+LATEX:\normalsize
+
+** Choices: More control, or less control?
+
+*** raise bootstrappable awareness
+to take back control over our computing, or
+*** keep doing what we're doing
+and watch the erosion of our computing freedoms.
+
+* Thanks
+** Thanks
+# *** Mortals                                                   :B_block:BMCOL:
+#     :PROPERTIES:
+#     :BEAMER_COL: 0.48
+#     :BEAMER_ENV: block
+#     :END:
+   * Carl Dong
+   * Danny Milosavljevic
+   * David Terry
+   * Jeremiah Orians
+   * Ludovic Courtès
+   * Matt Wette
+   * Pjotr Prins
+   * Rutger van Beusekom
+   * Timothy Sample
+   * Vagrant Cascadian
+# *** All the Giants                                            :B_block:BMCOL:
+#     :PROPERTIES:
+#     :BEAMER_COL: 0.48
+#     :xBEAMER_ACT: <2->
+#     :BEAMER_ENV: block
+#     :END:
+#    * ...
+# *** Connect
+#     * irc  freenode.net [[irc://bootstrappable@freenode.net][#bootstrappable]] [[irc://guix@freenode.net][#guix]]
+#     * mail [[mailto:bug-mes@gnu.org][bug-mes@gnu.org]] [[mailto://guix-devel@gnu.org][guix-devel@gnu.org]]
+#     * git  [[https://git.savannah.gnu.org/git/mes.git][https://git.savannah.gnu.org/git/mes.git]]
+#     * web  [[http://bootstrappable.org][bootstrappable.org]]
+
+** Want to join?
+*** You can help
+  * raise awareness
+  * make core GNU packages bootstrappable again
+#    + +XZ-only+ => *.GZ* tarballs (thank you: sed, coreutils!)
+    + GCC (c++!), GNU Libc (python?!)
+  * reduced bootstrap NixOS, Debian
+  * port MesCC to the Hurd, FreeBSD
+  * retweet/toot =@janneke_gnu= =janneke@octodon.social=
+
+*** Connect
+    * irc  freenode.net [[irc://bootstrappable@freenode.net][#bootstrappable]] [[irc://guix@freenode.net][#guix]]
+    * mail [[mailto:bug-mes@gnu.org][bug-mes@gnu.org]] [[mailto://guix-devel@gnu.org][guix-devel@gnu.org]]
+    * git  [[https://git.savannah.gnu.org/git/mes.git][https://git.savannah.gnu.org/git/mes.git]]
+    * web  [[http://bootstrappable.org][bootstrappable.org]]
+
+* legalese
+  :PROPERTIES:
+  :BEAMER_ENV: note
+  :COPYING: t
+  :END:
+
+  Copyright \copy 2017,2019,2020,2021 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+
+  #+BEGIN_QUOTE
+  Permission is granted to copy, distribute and/or modify this
+  document under the terms of the GNU Free Documentation License,
+  Version 1.3 or any later version published by the Free Software
+  Foundation; with no Invariant Sections, with no Front-Cover Texts,
+  and with no Back-Cover Texts.
+  #+END_QUOTE
+
+By Debian - www.debian.org/logos/, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=3330975
+By Canonical Ltd. - http://design.ubuntu.com/wp-content/uploads/logo-ubuntu_no%C2%AE-black_orange-hex.svg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=18296544
+By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=60635229
+By Original: Apple Inc.Vectorization: Totie - https://www.apple.com/macos/high-sierra/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=59644704
+By Original: Rob Janoff - https://www.apple.com/ac/globalnav/2.0/en_US/images/ac-globalnav/globalnav/apple/image_large.svg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=10472152
+
+By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=26987122
+By Source (WP:NFCC#4), Fair use, https://en.wikipedia.org/w/index.php?curid=38767733
+By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=13822991
+By Microsoft - File:Windows Server 2012 logo.svg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=45931123
+By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=28200444
+By 2014, Christian Noguera, Valentin Pasquier, Richard Stallman CC-BY 3.0 license.
--- a/doc/talks/fosdem21/fosdem21.pdf
+++ b/doc/talks/fosdem21/fosdem21.pdf
--- a/doc/talks/fosdem21/fsb-logo-guile-guix-gnu.png
+++ b/doc/talks/fosdem21/fsb-logo-guile-guix-gnu.png
--- a/doc/talks/fosdem21/fsb-logo-guile-guix-gnu.xcf
+++ b/doc/talks/fosdem21/fsb-logo-guile-guix-gnu.xcf
--- a/doc/talks/fosdem21/fsb-logo-guile-guix-mes.png
+++ b/doc/talks/fosdem21/fsb-logo-guile-guix-mes.png
--- a/doc/talks/fosdem21/fsb-logo-guile-guix-mes.xcf
+++ b/doc/talks/fosdem21/fsb-logo-guile-guix-mes.xcf
--- a/doc/talks/fosdem21/fsb-logo.png
+++ b/doc/talks/fosdem21/fsb-logo.png
--- a/doc/talks/fosdem21/gcc-boot0-black.dot
+++ b/doc/talks/fosdem21/gcc-boot0-black.dot
@ -0,0 +1,61 @@
+digraph "Guix package" {
+
+  "gcc-cross-boot0@5.5.0" -> "libstdc++-boot0@4.9.4" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "binutils-cross-boot0@2.31.1" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "binutils-bootstrap@0" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "bootstrap-binaries@0" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "diffutils-boot0@3.6" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "file-boot0@5.33" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "findutils-boot0@4.6.0" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "gcc-bootstrap@0" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "glibc-bootstrap@0" [color = black];
+  "gcc-cross-boot0@5.5.0" -> "make-boot0@4.2.1" [color = black];
+  "gcc-cross-boot0@5.5.0" [label = "gcc-cross-boot0@5.5.0", shape = box, fontname = Helvetica];
+  "libstdc++-boot0@4.9.4" -> "binutils-bootstrap@0" [color = black];
+  "libstdc++-boot0@4.9.4" -> "bootstrap-binaries@0" [color = black];
+  "libstdc++-boot0@4.9.4" -> "diffutils-boot0@3.6" [color = black];
+  "libstdc++-boot0@4.9.4" -> "file-boot0@5.33" [color = black];
+  "libstdc++-boot0@4.9.4" -> "findutils-boot0@4.6.0" [color = black];
+  "libstdc++-boot0@4.9.4" -> "gcc-bootstrap@0" [color = black];
+  "libstdc++-boot0@4.9.4" -> "glibc-bootstrap@0" [color = black];
+  "libstdc++-boot0@4.9.4" -> "make-boot0@4.2.1" [color = black];
+  "libstdc++-boot0@4.9.4" [label = "libstdc++-boot0@4.9.4", shape = box, fontname = Helvetica];
+  "binutils-cross-boot0@2.31.1" -> "binutils-bootstrap@0" [color = black];
+  "binutils-cross-boot0@2.31.1" -> "bootstrap-binaries@0" [color = black];
+  "binutils-cross-boot0@2.31.1" -> "diffutils-boot0@3.6" [color = black];
+  "binutils-cross-boot0@2.31.1" -> "file-boot0@5.33" [color = black];
+  "binutils-cross-boot0@2.31.1" -> "findutils-boot0@4.6.0" [color = black];
+  "binutils-cross-boot0@2.31.1" -> "gcc-bootstrap@0" [color = black];
+  "binutils-cross-boot0@2.31.1" -> "glibc-bootstrap@0" [color = black];
+  "binutils-cross-boot0@2.31.1" -> "make-boot0@4.2.1" [color = black];
+  "binutils-cross-boot0@2.31.1" [label = "binutils-cross-boot0@2.31.1", shape = box, fontname = Helvetica];
+  "binutils-bootstrap@0" [label = "binutils-bootstrap@0", fontname = Helvetica];
+  "bootstrap-binaries@0" [label = "bootstrap-binaries@0", fontname = Helvetica];
+  "diffutils-boot0@3.6" -> "binutils-bootstrap@0" [color = black];
+  "diffutils-boot0@3.6" -> "bootstrap-binaries@0" [color = black];
+  "diffutils-boot0@3.6" -> "gcc-bootstrap@0" [color = black];
+  "diffutils-boot0@3.6" -> "glibc-bootstrap@0" [color = black];
+  "diffutils-boot0@3.6" -> "make-boot0@4.2.1" [color = black];
+  "diffutils-boot0@3.6" [label = "diffutils-boot0@3.6", shape = box, fontname = Helvetica];
+  "file-boot0@5.33" -> "binutils-bootstrap@0" [color = black];
+  "file-boot0@5.33" -> "bootstrap-binaries@0" [color = black];
+  "file-boot0@5.33" -> "gcc-bootstrap@0" [color = black];
+  "file-boot0@5.33" -> "glibc-bootstrap@0" [color = black];
+  "file-boot0@5.33" -> "make-boot0@4.2.1" [color = black];
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+  "139965588787680" -> "139965588787840" [color = dimgrey];
+  "139965588787680" -> "139965588788320" [color = dimgrey];
+  "139965588787680" -> "139965588788800" [color = dimgrey];
+  "139965588787680" -> "139965588789920" [color = dimgrey];
+  "139965588787680" -> "139965588789760" [color = dimgrey];
+  "139965588787680" -> "139965588790080" [color = dimgrey];
+  "139965588787680" -> "139965749563136" [color = dimgrey];
+  "139965588788480" [label = "bash0", shape = box, fontname = sans];
+  "139965588788480" -> "139965588788800" [color = dimgrey];
+  "139965588788480" -> "139965588789120" [color = dimgrey];
+  "139965588788480" -> "139965588789920" [color = dimgrey];
+  "139965588788480" -> "139965588789760" [color = dimgrey];
+  "139965588788480" -> "139965588790080" [color = dimgrey];
+  "139965588788480" -> "139965749563136" [color = dimgrey];
+  "139965588788800" [label = "make0", shape = box, fontname = sans];
+  "139965588788800" -> "139965588789120" [color = peachpuff4];
+  "139965588788800" -> "139965588789920" [color = peachpuff4];
+  "139965588788800" -> "139965588789760" [color = peachpuff4];
+  "139965588788800" -> "139965588790080" [color = peachpuff4];
+  "139965588788800" -> "139965749563136" [color = peachpuff4];
+  "139965588789120" [label = "tcc0", shape = box, fontname = sans];
+  "139965588789120" -> "139965588789280" [color = dimgrey];
+  "139965588789120" -> "139965588789440" [color = dimgrey];
+  "139965588789120" -> "139965588789920" [color = dimgrey];
+  "139965588789120" -> "139965588789760" [color = dimgrey];
+  "139965588789120" -> "139965588790080" [color = dimgrey];
+  "139965588789120" -> "139965749563136" [color = dimgrey];
+  "139965588789280" [label = "mes", shape = box, fontname = sans];
+  "139965588789280" -> "139965588789440" [color = red];
+  "139965588789280" -> "139965588789920" [color = red];
+  "139965588789280" -> "139965588789760" [color = red];
+  "139965588789280" -> "139965588790080" [color = red];
+  "139965588789280" -> "139965749563136" [color = red];
+  "139965588789440" [label = "m2-planet", shape = box, fontname = sans];
+  "139965588789440" -> "139965588789600" [color = cyan3];
+  "139965588789440" -> "139965588789920" [color = cyan3];
+  "139965588789440" -> "139965588789760" [color = cyan3];
+  "139965588789440" -> "139965588790080" [color = cyan3];
+  "139965588789440" -> "139965749563136" [color = cyan3];
+  "139965588789600" [label = "bootstrap-seeds", shape = ellipse, fontname = sans];
+  "139965588789600" -> "139965588790080" [color = peachpuff4];
+  "139965588790080" [label = "bootar", shape = box, fontname = sans];
+  "139965588790080" -> "139965749563136" [color = darkseagreen];
+  "139965749563136" [label = "%bootstrap-guile", shape = ellipse, fontname = sans];
+  "139965588789920" [label = "gash", shape = box, fontname = sans];
+  "139965588789920" -> "139965588790080" [color = magenta];
+  "139965588789920" -> "139965749563136" [color = magenta];
+  "139965588789760" [label = "gash-utils", shape = box, fontname = sans];
+  "139965588789760" -> "139965588790080" [color = magenta];
+  "139965588789760" -> "139965588789920" [color = magenta];
+  "139965588789760" -> "139965749563136" [color = magenta];
+  "139965588788640" [label = "bzip2", shape = box, fontname = sans];
+  "139965588788640" -> "139965588788800" [color = dimgrey];
+  "139965588788640" -> "139965588789120" [color = dimgrey];
+  "139965588788640" -> "139965588789920" [color = dimgrey];
+  "139965588788640" -> "139965588789760" [color = dimgrey];
+  "139965588788640" -> "139965588790080" [color = dimgrey];
+  "139965588788640" -> "139965749563136" [color = dimgrey];
+  "139965588788160" [label = "diffutils", shape = box, fontname = sans];
+  "139965588788160" -> "139965588788800" [color = cyan3];
+  "139965588788160" -> "139965588789120" [color = cyan3];
+  "139965588788160" -> "139965588789920" [color = cyan3];
+  "139965588788160" -> "139965588789760" [color = cyan3];
+  "139965588788160" -> "139965588790080" [color = cyan3];
+  "139965588788160" -> "139965749563136" [color = cyan3];
+  "139965588788960" [label = "gzip", shape = box, fontname = sans];
+  "139965588788960" -> "139965588789120" [color = cyan3];
+  "139965588788960" -> "139965588789920" [color = cyan3];
+  "139965588788960" -> "139965588789760" [color = cyan3];
+  "139965588788960" -> "139965588790080" [color = cyan3];
+  "139965588788960" -> "139965749563136" [color = cyan3];
+  "139965588788000" [label = "patch", shape = box, fontname = sans];
+  "139965588788000" -> "139965588788800" [color = dimgrey];
+  "139965588788000" -> "139965588789120" [color = dimgrey];
+  "139965588788000" -> "139965588789920" [color = dimgrey];
+  "139965588788000" -> "139965588789760" [color = dimgrey];
+  "139965588788000" -> "139965588790080" [color = dimgrey];
+  "139965588788000" -> "139965749563136" [color = dimgrey];
+  "139965588787840" [label = "sed0", shape = box, fontname = sans];
+  "139965588787840" -> "139965588788800" [color = peachpuff4];
+  "139965588787840" -> "139965588789120" [color = peachpuff4];
+  "139965588787840" -> "139965588789920" [color = peachpuff4];
+  "139965588787840" -> "139965588789760" [color = peachpuff4];
+  "139965588787840" -> "139965588790080" [color = peachpuff4];
+  "139965588787840" -> "139965749563136" [color = peachpuff4];
+  "139965588788320" [label = "tcc", shape = box, fontname = sans];
+  "139965588788320" -> "139965588788640" [color = dimgrey];
+  "139965588788320" -> "139965588788800" [color = dimgrey];
+  "139965588788320" -> "139965588789120" [color = dimgrey];
+  "139965588788320" -> "139965588789920" [color = dimgrey];
+  "139965588788320" -> "139965588789760" [color = dimgrey];
+  "139965588788320" -> "139965588790080" [color = dimgrey];
+  "139965588788320" -> "139965749563136" [color = dimgrey];
+
+}
--- a/doc/talks/fosdem21/gcc-core-mesboot0-fsb-unversioned.png
+++ b/doc/talks/fosdem21/gcc-core-mesboot0-fsb-unversioned.png
--- a/doc/talks/fosdem21/gcc-core-mesboot0-fsb.dot
+++ b/doc/talks/fosdem21/gcc-core-mesboot0-fsb.dot
@ -0,0 +1,116 @@
+digraph "Guix package" {
+  "139965588787520" [label = "gcc-core-mesboot0@2.95.3", shape = box, fontname = sans];
+  "139965588787520" -> "139965588787680" [color = darkviolet];
+  "139965588787520" -> "139965588788480" [color = darkviolet];
+  "139965588787520" -> "139965588788640" [color = darkviolet];
+  "139965588787520" -> "139965588788160" [color = darkviolet];
+  "139965588787520" -> "139965588788960" [color = darkviolet];
+  "139965588787520" -> "139965588788000" [color = darkviolet];
+  "139965588787520" -> "139965588787840" [color = darkviolet];
+  "139965588787520" -> "139965588788320" [color = darkviolet];
+  "139965588787520" -> "139965588788800" [color = darkviolet];
+  "139965588787520" -> "139965588789920" [color = darkviolet];
+  "139965588787520" -> "139965588789760" [color = darkviolet];
+  "139965588787520" -> "139965588790080" [color = darkviolet];
+  "139965588787520" -> "139965749563136" [color = darkviolet];
+  "139965588787680" [label = "binutils-mesboot0@2.14", shape = box, fontname = sans];
+  "139965588787680" -> "139965588788480" [color = dimgrey];
+  "139965588787680" -> "139965588788640" [color = dimgrey];
+  "139965588787680" -> "139965588788160" [color = dimgrey];
+  "139965588787680" -> "139965588788960" [color = dimgrey];
+  "139965588787680" -> "139965588788000" [color = dimgrey];
+  "139965588787680" -> "139965588787840" [color = dimgrey];
+  "139965588787680" -> "139965588788320" [color = dimgrey];
+  "139965588787680" -> "139965588788800" [color = dimgrey];
+  "139965588787680" -> "139965588789920" [color = dimgrey];
+  "139965588787680" -> "139965588789760" [color = dimgrey];
+  "139965588787680" -> "139965588790080" [color = dimgrey];
+  "139965588787680" -> "139965749563136" [color = dimgrey];
+  "139965588788480" [label = "bash-mesboot0@2.05b", shape = box, fontname = sans];
+  "139965588788480" -> "139965588788800" [color = dimgrey];
+  "139965588788480" -> "139965588789120" [color = dimgrey];
+  "139965588788480" -> "139965588789920" [color = dimgrey];
+  "139965588788480" -> "139965588789760" [color = dimgrey];
+  "139965588788480" -> "139965588790080" [color = dimgrey];
+  "139965588788480" -> "139965749563136" [color = dimgrey];
+  "139965588788800" [label = "make-mesboot0@3.80", shape = box, fontname = sans];
+  "139965588788800" -> "139965588789120" [color = peachpuff4];
+  "139965588788800" -> "139965588789920" [color = peachpuff4];
+  "139965588788800" -> "139965588789760" [color = peachpuff4];
+  "139965588788800" -> "139965588790080" [color = peachpuff4];
+  "139965588788800" -> "139965749563136" [color = peachpuff4];
+  "139965588789120" [label = "tcc-boot0@0.9.26-1136-g5bba73cc", shape = box, fontname = sans];
+  "139965588789120" -> "139965588789280" [color = dimgrey];
+  "139965588789120" -> "139965588789440" [color = dimgrey];
+  "139965588789120" -> "139965588789920" [color = dimgrey];
+  "139965588789120" -> "139965588789760" [color = dimgrey];
+  "139965588789120" -> "139965588790080" [color = dimgrey];
+  "139965588789120" -> "139965749563136" [color = dimgrey];
+  "139965588789280" [label = "mes-boot@0.22-305-g2ab4c5c67", shape = box, fontname = sans];
+  "139965588789280" -> "139965588789440" [color = red];
+  "139965588789280" -> "139965588789920" [color = red];
+  "139965588789280" -> "139965588789760" [color = red];
+  "139965588789280" -> "139965588790080" [color = red];
+  "139965588789280" -> "139965749563136" [color = red];
+  "139965588789440" [label = "m2-planet-boot@1.7.0-31-g358b6cf", shape = box, fontname = sans];
+  "139965588789440" -> "139965588789600" [color = cyan3];
+  "139965588789440" -> "139965588789920" [color = cyan3];
+  "139965588789440" -> "139965588789760" [color = cyan3];
+  "139965588789440" -> "139965588790080" [color = cyan3];
+  "139965588789440" -> "139965749563136" [color = cyan3];
+  "139965588789600" [label = "bootstrap-seeds@1.0.0", shape = ellipse, fontname = sans];
+  "139965588789600" -> "139965588790080" [color = peachpuff4];
+  "139965588790080" [label = "bootar@1a", shape = box, fontname = sans];
+  "139965588790080" -> "139965749563136" [color = darkseagreen];
+  "139965749563136" [label = "guile-bootstrap@2.0", shape = ellipse, fontname = sans];
+  "139965588789920" [label = "gash-boot@0.2.0", shape = box, fontname = sans];
+  "139965588789920" -> "139965588790080" [color = magenta];
+  "139965588789920" -> "139965749563136" [color = magenta];
+  "139965588789760" [label = "gash-utils-boot@0.1.0", shape = box, fontname = sans];
+  "139965588789760" -> "139965588790080" [color = magenta];
+  "139965588789760" -> "139965588789920" [color = magenta];
+  "139965588789760" -> "139965749563136" [color = magenta];
+  "139965588788640" [label = "bzip2-mesboot@1.0.8", shape = box, fontname = sans];
+  "139965588788640" -> "139965588788800" [color = dimgrey];
+  "139965588788640" -> "139965588789120" [color = dimgrey];
+  "139965588788640" -> "139965588789920" [color = dimgrey];
+  "139965588788640" -> "139965588789760" [color = dimgrey];
+  "139965588788640" -> "139965588790080" [color = dimgrey];
+  "139965588788640" -> "139965749563136" [color = dimgrey];
+  "139965588788160" [label = "diffutils-mesboot@2.7", shape = box, fontname = sans];
+  "139965588788160" -> "139965588788800" [color = cyan3];
+  "139965588788160" -> "139965588789120" [color = cyan3];
+  "139965588788160" -> "139965588789920" [color = cyan3];
+  "139965588788160" -> "139965588789760" [color = cyan3];
+  "139965588788160" -> "139965588790080" [color = cyan3];
+  "139965588788160" -> "139965749563136" [color = cyan3];
+  "139965588788960" [label = "gzip-mesboot@1.2.4", shape = box, fontname = sans];
+  "139965588788960" -> "139965588789120" [color = cyan3];
+  "139965588788960" -> "139965588789920" [color = cyan3];
+  "139965588788960" -> "139965588789760" [color = cyan3];
+  "139965588788960" -> "139965588790080" [color = cyan3];
+  "139965588788960" -> "139965749563136" [color = cyan3];
+  "139965588788000" [label = "patch-mesboot@2.5.9", shape = box, fontname = sans];
+  "139965588788000" -> "139965588788800" [color = dimgrey];
+  "139965588788000" -> "139965588789120" [color = dimgrey];
+  "139965588788000" -> "139965588789920" [color = dimgrey];
+  "139965588788000" -> "139965588789760" [color = dimgrey];
+  "139965588788000" -> "139965588790080" [color = dimgrey];
+  "139965588788000" -> "139965749563136" [color = dimgrey];
+  "139965588787840" [label = "sed-mesboot0@1.18", shape = box, fontname = sans];
+  "139965588787840" -> "139965588788800" [color = peachpuff4];
+  "139965588787840" -> "139965588789120" [color = peachpuff4];
+  "139965588787840" -> "139965588789920" [color = peachpuff4];
+  "139965588787840" -> "139965588789760" [color = peachpuff4];
+  "139965588787840" -> "139965588790080" [color = peachpuff4];
+  "139965588787840" -> "139965749563136" [color = peachpuff4];
+  "139965588788320" [label = "tcc-boot@0.9.27", shape = box, fontname = sans];
+  "139965588788320" -> "139965588788640" [color = dimgrey];
+  "139965588788320" -> "139965588788800" [color = dimgrey];
+  "139965588788320" -> "139965588789120" [color = dimgrey];
+  "139965588788320" -> "139965588789920" [color = dimgrey];
+  "139965588788320" -> "139965588789760" [color = dimgrey];
+  "139965588788320" -> "139965588790080" [color = dimgrey];
+  "139965588788320" -> "139965749563136" [color = dimgrey];
+
+}
--- a/doc/talks/fosdem21/gcc-core-mesboot0-fsb.png
+++ b/doc/talks/fosdem21/gcc-core-mesboot0-fsb.png
--- a/doc/talks/fosdem21/gcc-core-mesboot0-scheme-only-unversioned.dot
+++ b/doc/talks/fosdem21/gcc-core-mesboot0-scheme-only-unversioned.dot
@ -0,0 +1,116 @@
+digraph "Guix package" {
+  "gcc-core0" [label = "gcc-core0", shape = box, fontname = Helvetica];
+  "gcc-core0" -> "binutils0" [color = peachpuff4];
+  "gcc-core0" -> "bash0" [color = peachpuff4];
+  "gcc-core0" -> "bzip2" [color = peachpuff4];
+  "gcc-core0" -> "diffutils" [color = peachpuff4];
+  "gcc-core0" -> "gzip" [color = peachpuff4];
+  "gcc-core0" -> "patch" [color = peachpuff4];
+  "gcc-core0" -> "sed0" [color = peachpuff4];
+  "gcc-core0" -> "tcc" [color = peachpuff4];
+  "gcc-core0" -> "make0" [color = peachpuff4];
+  "gcc-core0" -> "gash" [color = peachpuff4];
+  "gcc-core0" -> "gash core utils" [color = peachpuff4];
+  # "gcc-core0" -> "139838140100384" [color = peachpuff4];
+  "gcc-core0" -> "bootstrap-guile" [color = peachpuff4];
+  "binutils0" [label = "binutils0", shape = box, fontname = Helvetica];
+  "binutils0" -> "bash0" [color = cyan3];
+  "binutils0" -> "bzip2" [color = cyan3];
+  "binutils0" -> "diffutils" [color = cyan3];
+  "binutils0" -> "gzip" [color = cyan3];
+  "binutils0" -> "patch" [color = cyan3];
+  "binutils0" -> "sed0" [color = cyan3];
+  "binutils0" -> "tcc" [color = cyan3];
+  "binutils0" -> "make0" [color = cyan3];
+  "binutils0" -> "gash" [color = cyan3];
+  "binutils0" -> "gash core utils" [color = cyan3];
+  # "binutils0" -> "139838140100384" [color = cyan3];
+  "binutils0" -> "bootstrap-guile" [color = cyan3];
+  "bash0" [label = "bash0", shape = box, fontname = Helvetica];
+  "bash0" -> "make0" [color = darkgoldenrod];
+  "bash0" -> "tcc0" [color = darkgoldenrod];
+  "bash0" -> "gash" [color = darkgoldenrod];
+  "bash0" -> "gash core utils" [color = darkgoldenrod];
+  # "bash0" -> "139838140100384" [color = darkgoldenrod];
+  "bash0" -> "bootstrap-guile" [color = darkgoldenrod];
+  "make0" [label = "make0", shape = box, fontname = Helvetica];
+  "make0" -> "tcc0" [color = blue];
+  "make0" -> "gash" [color = blue];
+  "make0" -> "gash core utils" [color = blue];
+  # "make0" -> "139838140100384" [color = blue];
+  "make0" -> "bootstrap-guile" [color = blue];
+  "tcc0" [label = "tcc0", shape = box, fontname = Helvetica];
+  "tcc0" -> "mes" [color = red];
+  "tcc0" -> "bootstrap-mescc-tools" [color = red];
+  "tcc0" -> "gash" [color = red];
+  "tcc0" -> "gash core utils" [color = red];
+  # "tcc0" -> "139838140100384" [color = red];
+  "tcc0" -> "bootstrap-guile" [color = red];
+  #"mes" [label = "mes", shape = box, fontname = Helvetica];
+  "mes" [label = "mes", shape = box, fontname = Helvetica];
+  "mes" -> "bootstrap-mes" [color = cyan3];
+  "mes" -> "bootstrap-mescc-tools" [color = cyan3];
+  "mes" -> "gash" [color = cyan3];
+  "mes" -> "gash core utils" [color = cyan3];
+  # "mes" -> "139838140100384" [color = cyan3];
+  "mes" -> "bootstrap-guile" [color = cyan3];
+  #"139837957673136" [label = "bootstrap-mes-rewired", shape = box, fontname = Helvetica];
+  #"139837957673136" [label = "bootstrap-mes", fontname = Helvetica];
+  #"bootstrap-mes" -> "139838140099152" [color = darkseagreen];
+  #"bootstrap-mes" -> "gash" [color = darkseagreen];
+  #"139838140099152" [label = "bootstrap-mes", shape = box, fontname = Helvetica];
+  #"139838140099152" [label = "bootstrap-mes", fontname = Helvetica];
+  "gash" [label = "gash", shape = box, fontname = Helvetica];
+  "gash" -> "bootstrap-guile" [color = red];
+  #"bootstrap-guile" [label = "bootstrap-guile+guild", shape = box, fontname = Helvetica];
+  "bootstrap-guile" [label = "bootstrap-guile", fontname = Helvetica];
+  # "bootstrap-guile" -> "139838140100384" [color = darkviolet];
+  # "139838140100384" [label = "bootstrap-guile", shape = box, fontname = Helvetica];
+  #"bootstrap-mescc-tools" [label = "bootstrap-mescc-tools", shape = box, fontname = Helvetica];
+  "bootstrap-mescc-tools" [label = "bootstrap-mescc-tools", fontname = Helvetica];
+  "gash core utils" [label = "gash-core-utils", shape = box, fontname = Helvetica];
+  "gash core utils" -> "bootstrap-guile" [color = red];
+  "gash core utils" -> "gash" [color = red];
+  "bzip2" [label = "bzip2", shape = box, fontname = Helvetica];
+  "bzip2" -> "make0" [color = red];
+  "bzip2" -> "tcc0" [color = red];
+  "bzip2" -> "gash" [color = red];
+  "bzip2" -> "gash core utils" [color = red];
+  # "bzip2" -> "139838140100384" [color = red];
+  "bzip2" -> "bootstrap-guile" [color = red];
+  "diffutils" [label = "diffutils", shape = box, fontname = Helvetica];
+  "diffutils" -> "make0" [color = blue];
+  "diffutils" -> "tcc0" [color = blue];
+  "diffutils" -> "gash" [color = blue];
+  "diffutils" -> "gash core utils" [color = blue];
+  # "diffutils" -> "139838140100384" [color = blue];
+  "diffutils" -> "bootstrap-guile" [color = blue];
+  "gzip" [label = "gzip", shape = box, fontname = Helvetica];
+  "gzip" -> "tcc0" [color = blue];
+  "gzip" -> "gash" [color = blue];
+  "gzip" -> "gash core utils" [color = blue];
+  # "gzip" -> "139838140100384" [color = blue];
+  "gzip" -> "bootstrap-guile" [color = blue];
+  "patch" [label = "patch", shape = box, fontname = Helvetica];
+  "patch" -> "make0" [color = blue];
+  "patch" -> "tcc0" [color = blue];
+  "patch" -> "gash" [color = blue];
+  "patch" -> "gash core utils" [color = blue];
+  # "patch" -> "139838140100384" [color = blue];
+  "patch" -> "bootstrap-guile" [color = blue];
+  "sed0" [label = "sed0", shape = box, fontname = Helvetica];
+  "sed0" -> "make0" [color = magenta];
+  "sed0" -> "tcc0" [color = magenta];
+  "sed0" -> "gash" [color = magenta];
+  "sed0" -> "gash core utils" [color = magenta];
+  # "sed0" -> "139838140100384" [color = magenta];
+  "sed0" -> "bootstrap-guile" [color = magenta];
+  "tcc" [label = "tcc", shape = box, fontname = Helvetica];
+  "tcc" -> "bzip2" [color = darkviolet];
+  "tcc" -> "make0" [color = darkviolet];
+  "tcc" -> "tcc0" [color = darkviolet];
+  "tcc" -> "gash" [color = darkviolet];
+  "tcc" -> "gash core utils" [color = darkviolet];
+  # "tcc" -> "139838140100384" [color = darkviolet];
+  "tcc" -> "bootstrap-guile" [color = darkviolet];
+}
--- a/doc/talks/fosdem21/gcc-core-mesboot0-scheme-only-unversioned.png
+++ b/doc/talks/fosdem21/gcc-core-mesboot0-scheme-only-unversioned.png
--- a/doc/talks/fosdem21/gcc-core-mesboot0-scheme-only.dot
+++ b/doc/talks/fosdem21/gcc-core-mesboot0-scheme-only.dot
@ -0,0 +1,116 @@
+digraph "Guix package" {
+  "gcc-core0" [label = "gcc-core0@2.95.3", shape = box, fontname = Helvetica];
+  "gcc-core0" -> "binutils0" [color = peachpuff4];
+  "gcc-core0" -> "bash0" [color = peachpuff4];
+  "gcc-core0" -> "bzip2" [color = peachpuff4];
+  "gcc-core0" -> "diffutils" [color = peachpuff4];
+  "gcc-core0" -> "gzip" [color = peachpuff4];
+  "gcc-core0" -> "patch" [color = peachpuff4];
+  "gcc-core0" -> "sed0" [color = peachpuff4];
+  "gcc-core0" -> "tcc" [color = peachpuff4];
+  "gcc-core0" -> "make0" [color = peachpuff4];
+  "gcc-core0" -> "gash" [color = peachpuff4];
+  "gcc-core0" -> "gash core utils" [color = peachpuff4];
+  # "gcc-core0" -> "139838140100384" [color = peachpuff4];
+  "gcc-core0" -> "bootstrap-guile" [color = peachpuff4];
+  "binutils0" [label = "binutils0@2.14", shape = box, fontname = Helvetica];
+  "binutils0" -> "bash0" [color = cyan3];
+  "binutils0" -> "bzip2" [color = cyan3];
+  "binutils0" -> "diffutils" [color = cyan3];
+  "binutils0" -> "gzip" [color = cyan3];
+  "binutils0" -> "patch" [color = cyan3];
+  "binutils0" -> "sed0" [color = cyan3];
+  "binutils0" -> "tcc" [color = cyan3];
+  "binutils0" -> "make0" [color = cyan3];
+  "binutils0" -> "gash" [color = cyan3];
+  "binutils0" -> "gash core utils" [color = cyan3];
+  # "binutils0" -> "139838140100384" [color = cyan3];
+  "binutils0" -> "bootstrap-guile" [color = cyan3];
+  "bash0" [label = "bash0@2.05b", shape = box, fontname = Helvetica];
+  "bash0" -> "make0" [color = darkgoldenrod];
+  "bash0" -> "tcc0" [color = darkgoldenrod];
+  "bash0" -> "gash" [color = darkgoldenrod];
+  "bash0" -> "gash core utils" [color = darkgoldenrod];
+  # "bash0" -> "139838140100384" [color = darkgoldenrod];
+  "bash0" -> "bootstrap-guile" [color = darkgoldenrod];
+  "make0" [label = "make0@3.80", shape = box, fontname = Helvetica];
+  "make0" -> "tcc0" [color = blue];
+  "make0" -> "gash" [color = blue];
+  "make0" -> "gash core utils" [color = blue];
+  # "make0" -> "139838140100384" [color = blue];
+  "make0" -> "bootstrap-guile" [color = blue];
+  "tcc0" [label = "tcc0@0.9.26", shape = box, fontname = Helvetica];
+  "tcc0" -> "mes" [color = red];
+  "tcc0" -> "bootstrap-mescc-tools" [color = red];
+  "tcc0" -> "gash" [color = red];
+  "tcc0" -> "gash core utils" [color = red];
+  # "tcc0" -> "139838140100384" [color = red];
+  "tcc0" -> "bootstrap-guile" [color = red];
+  #"mes" [label = "mes@0.21-54-g85cadbb2c", shape = box, fontname = Helvetica];
+  "mes" [label = "mes@0.22", shape = box, fontname = Helvetica];
+  "mes" -> "bootstrap-mes@0.19" [color = cyan3];
+  "mes" -> "bootstrap-mescc-tools" [color = cyan3];
+  "mes" -> "gash" [color = cyan3];
+  "mes" -> "gash core utils" [color = cyan3];
+  # "mes" -> "139838140100384" [color = cyan3];
+  "mes" -> "bootstrap-guile" [color = cyan3];
+  #"139837957673136" [label = "bootstrap-mes-rewired@0.19", shape = box, fontname = Helvetica];
+  #"139837957673136" [label = "bootstrap-mes@0.19", fontname = Helvetica];
+  #"bootstrap-mes" -> "139838140099152" [color = darkseagreen];
+  #"bootstrap-mes" -> "gash" [color = darkseagreen];
+  #"139838140099152" [label = "bootstrap-mes@0", shape = box, fontname = Helvetica];
+  #"139838140099152" [label = "bootstrap-mes@0.19", fontname = Helvetica];
+  "gash" [label = "gash@0.2.0", shape = box, fontname = Helvetica];
+  "gash" -> "bootstrap-guile" [color = red];
+  #"bootstrap-guile" [label = "bootstrap-guile+guild@2.0", shape = box, fontname = Helvetica];
+  "bootstrap-guile" [label = "bootstrap-guile@2.0", fontname = Helvetica];
+  # "bootstrap-guile" -> "139838140100384" [color = darkviolet];
+  # "139838140100384" [label = "bootstrap-guile@2.0", shape = box, fontname = Helvetica];
+  #"bootstrap-mescc-tools" [label = "bootstrap-mescc-tools@0.5.2", shape = box, fontname = Helvetica];
+  "bootstrap-mescc-tools" [label = "bootstrap-mescc-tools@0.5.2", fontname = Helvetica];
+  "gash core utils" [label = "gash-core-utils@0.0", shape = box, fontname = Helvetica];
+  "gash core utils" -> "bootstrap-guile" [color = red];
+  "gash core utils" -> "gash" [color = red];
+  "bzip2" [label = "bzip2@1.0.6", shape = box, fontname = Helvetica];
+  "bzip2" -> "make0" [color = red];
+  "bzip2" -> "tcc0" [color = red];
+  "bzip2" -> "gash" [color = red];
+  "bzip2" -> "gash core utils" [color = red];
+  # "bzip2" -> "139838140100384" [color = red];
+  "bzip2" -> "bootstrap-guile" [color = red];
+  "diffutils" [label = "diffutils@2.7", shape = box, fontname = Helvetica];
+  "diffutils" -> "make0" [color = blue];
+  "diffutils" -> "tcc0" [color = blue];
+  "diffutils" -> "gash" [color = blue];
+  "diffutils" -> "gash core utils" [color = blue];
+  # "diffutils" -> "139838140100384" [color = blue];
+  "diffutils" -> "bootstrap-guile" [color = blue];
+  "gzip" [label = "gzip@1.2.4", shape = box, fontname = Helvetica];
+  "gzip" -> "tcc0" [color = blue];
+  "gzip" -> "gash" [color = blue];
+  "gzip" -> "gash core utils" [color = blue];
+  # "gzip" -> "139838140100384" [color = blue];
+  "gzip" -> "bootstrap-guile" [color = blue];
+  "patch" [label = "patch@2.5.9", shape = box, fontname = Helvetica];
+  "patch" -> "make0" [color = blue];
+  "patch" -> "tcc0" [color = blue];
+  "patch" -> "gash" [color = blue];
+  "patch" -> "gash core utils" [color = blue];
+  # "patch" -> "139838140100384" [color = blue];
+  "patch" -> "bootstrap-guile" [color = blue];
+  "sed0" [label = "sed0@1.18", shape = box, fontname = Helvetica];
+  "sed0" -> "make0" [color = magenta];
+  "sed0" -> "tcc0" [color = magenta];
+  "sed0" -> "gash" [color = magenta];
+  "sed0" -> "gash core utils" [color = magenta];
+  # "sed0" -> "139838140100384" [color = magenta];
+  "sed0" -> "bootstrap-guile" [color = magenta];
+  "tcc" [label = "tcc@0.9.27", shape = box, fontname = Helvetica];
+  "tcc" -> "bzip2" [color = darkviolet];
+  "tcc" -> "make0" [color = darkviolet];
+  "tcc" -> "tcc0" [color = darkviolet];
+  "tcc" -> "gash" [color = darkviolet];
+  "tcc" -> "gash core utils" [color = darkviolet];
+  # "tcc" -> "139838140100384" [color = darkviolet];
+  "tcc" -> "bootstrap-guile" [color = darkviolet];
+}
--- a/doc/talks/fosdem21/gcc-core-mesboot0-scheme-only.png
+++ b/doc/talks/fosdem21/gcc-core-mesboot0-scheme-only.png
--- a/doc/talks/fosdem21/gcc-mesboot0-scheme-only-unversioned.dot
+++ b/doc/talks/fosdem21/gcc-mesboot0-scheme-only-unversioned.dot
@ -0,0 +1,180 @@
+digraph "Guix package" {
+  "gcc0" [label = "gcc0", shape = box, fontname = Helvetica];
+  "gcc0" -> "glibc0" [color = red];
+  "gcc0" -> "linux-libre-headers" [color = red];
+  "gcc0" -> "binutils0" [color = red];
+  "gcc0" -> "gawk0" [color = red];
+  "gcc0" -> "gcc-core0" [color = red];
+  "gcc0" -> "bash0" [color = red];
+  "gcc0" -> "bzip2" [color = red];
+  "gcc0" -> "diffutils" [color = red];
+  "gcc0" -> "gzip" [color = red];
+  "gcc0" -> "patch" [color = red];
+  "gcc0" -> "sed0" [color = red];
+  "gcc0" -> "make0" [color = red];
+  "gcc0" -> "gash" [color = red];
+  "gcc0" -> "gash-core-utils" [color = red];
+  "gcc0" -> "bootstrap-guile" [color = red];
+  #"gcc0" -> "guile-bootstrap+guild" [color = red];
+  "glibc0" [label = "glibc0", shape = box, fontname = Helvetica];
+  "glibc0" -> "mes-headers" [color = dimgrey];
+  "glibc0" -> "binutils0" [color = dimgrey];
+  "glibc0" -> "gawk0" [color = dimgrey];
+  "glibc0" -> "gcc-core0" [color = dimgrey];
+  "glibc0" -> "bash0" [color = dimgrey];
+  "glibc0" -> "bzip2" [color = dimgrey];
+  "glibc0" -> "diffutils" [color = dimgrey];
+  "glibc0" -> "gzip" [color = dimgrey];
+  "glibc0" -> "patch" [color = dimgrey];
+  "glibc0" -> "sed0" [color = dimgrey];
+  "glibc0" -> "make0" [color = dimgrey];
+  "glibc0" -> "gash" [color = dimgrey];
+  "glibc0" -> "gash-core-utils" [color = dimgrey];
+  "glibc0" -> "bootstrap-guile" [color = dimgrey];
+  #"glibc0" -> "guile-bootstrap+guild" [color = dimgrey];
+  "mes-headers" [label = "mes-headers", shape = box, fontname = Helvetica];
+  "mes-headers" -> "linux-libre-headers" [color = blue];
+  "mes-headers" -> "bash0" [color = blue];
+  "mes-headers" -> "bzip2" [color = blue];
+  "mes-headers" -> "diffutils" [color = blue];
+  "mes-headers" -> "gzip" [color = blue];
+  "mes-headers" -> "patch" [color = blue];
+  "mes-headers" -> "sed0" [color = blue];
+  "mes-headers" -> "tcc" [color = blue];
+  "mes-headers" -> "make0" [color = blue];
+  "mes-headers" -> "gash" [color = blue];
+  "mes-headers" -> "gash-core-utils" [color = blue];
+  "mes-headers" -> "bootstrap-guile" [color = blue];
+  #"mes-headers" -> "guile-bootstrap+guild" [color = blue];
+  #"linux-libre-headers" [label = "linux-libre-headers-bootstrap", shape = box, fontname = Helvetica];
+  "linux-libre-headers" [label = "bootstrap-linux-libre-headers", fontname = Helvetica];
+  "bash0" [label = "bash0", shape = box, fontname = Helvetica];
+  "bash0" -> "make0" [color = dimgrey];
+  "bash0" -> "tcc0" [color = dimgrey];
+  "bash0" -> "gash" [color = dimgrey];
+  "bash0" -> "gash-core-utils" [color = dimgrey];
+  "bash0" -> "bootstrap-guile" [color = dimgrey];
+  #"bash0" -> "guile-bootstrap+guild" [color = dimgrey];
+  "make0" [label = "make0", shape = box, fontname = Helvetica];
+  "make0" -> "tcc0" [color = red];
+  "make0" -> "gash" [color = red];
+  "make0" -> "gash-core-utils" [color = red];
+  "make0" -> "bootstrap-guile" [color = red];
+  #"make0" -> "guile-bootstrap+guild" [color = red];
+  "tcc0" [label = "tcc0", shape = box, fontname = Helvetica];
+  "tcc0" -> "mes" [color = darkgoldenrod];
+  "tcc0" -> "bootstrap-mescc-tools" [color = darkgoldenrod];
+  "tcc0" -> "gash" [color = darkgoldenrod];
+  "tcc0" -> "gash-core-utils" [color = darkgoldenrod];
+  "tcc0" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"tcc0" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  "mes" [label = "mes", shape = box, fontname = Helvetica];
+  #"mes" -> "bootstrap-mes-rewired" [color = darkgoldenrod];
+  "mes" -> "bootstrap-mes" [color = darkgoldenrod];
+  "mes" -> "bootstrap-mescc-tools" [color = darkgoldenrod];
+  "mes" -> "gash" [color = darkgoldenrod];
+  "mes" -> "gash-core-utils" [color = darkgoldenrod];
+  "mes" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"mes" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  #"bootstrap-mes-rewired" [label = "bootstrap-mes-rewired", shape = box, fontname = Helvetica];
+  #"bootstrap-mes-rewired" -> "bootstrap-mes" [color = dimgrey];
+  #"bootstrap-mes-rewired" -> "gash" [color = dimgrey];
+  #"bootstrap-mes" [label = "bootstrap-mes", shape = box, fontname = Helvetica];
+  "bootstrap-mes" [label = "bootstrap-mes", fontname = Helvetica];
+  "gash" [label = "gash", shape = box, fontname = Helvetica];
+  "gash" -> "bootstrap-guile" [color = darkviolet];
+  # "guile-bootstrap+guild" [label = "guile-bootstrap+guild", shape = box, fontname = Helvetica];
+  # "guile-bootstrap+guild" -> "bootstrap-guile" [color = blue];
+
+  #"bootstrap-guile" [label = "guile-bootstrap", shape = box, fontname = Helvetica];
+  "bootstrap-guile" [label = "guile-bootstrap", fontname = Helvetica];
+  #"bootstrap-mescc-tools" [label = "bootstrap-mescc-tools", shape = box, fontname = Helvetica];
+  "bootstrap-mescc-tools" [label = "bootstrap-mescc-tools", fontname = Helvetica];
+
+  "gash-core-utils" [label = "gash-core-utils", shape = box, fontname = Helvetica];
+  "gash-core-utils" -> "bootstrap-guile" [color = red];
+  "gash-core-utils" -> "gash" [color = red];
+  "bzip2" [label = "bzip2", shape = box, fontname = Helvetica];
+  "bzip2" -> "make0" [color = darkgoldenrod];
+  "bzip2" -> "tcc0" [color = darkgoldenrod];
+  "bzip2" -> "gash" [color = darkgoldenrod];
+  "bzip2" -> "gash-core-utils" [color = darkgoldenrod];
+  "bzip2" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"bzip2" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  "diffutils" [label = "diffutils", shape = box, fontname = Helvetica];
+  "diffutils" -> "make0" [color = darkgoldenrod];
+  "diffutils" -> "tcc0" [color = darkgoldenrod];
+  "diffutils" -> "gash" [color = darkgoldenrod];
+  "diffutils" -> "gash-core-utils" [color = darkgoldenrod];
+  "diffutils" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"diffutils" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  "gzip" [label = "gzip", shape = box, fontname = Helvetica];
+  "gzip" -> "tcc0" [color = darkseagreen];
+  "gzip" -> "gash" [color = darkseagreen];
+  "gzip" -> "gash-core-utils" [color = darkseagreen];
+  "gzip" -> "bootstrap-guile" [color = darkseagreen];
+  #"gzip" -> "guile-bootstrap+guild" [color = darkseagreen];
+  "patch" [label = "patch", shape = box, fontname = Helvetica];
+  "patch" -> "make0" [color = peachpuff4];
+  "patch" -> "tcc0" [color = peachpuff4];
+  "patch" -> "gash" [color = peachpuff4];
+  "patch" -> "gash-core-utils" [color = peachpuff4];
+  "patch" -> "bootstrap-guile" [color = peachpuff4];
+  #"patch" -> "guile-bootstrap+guild" [color = peachpuff4];
+  "sed0" [label = "sed0", shape = box, fontname = Helvetica];
+  "sed0" -> "make0" [color = peachpuff4];
+  "sed0" -> "tcc0" [color = peachpuff4];
+  "sed0" -> "gash" [color = peachpuff4];
+  "sed0" -> "gash-core-utils" [color = peachpuff4];
+  "sed0" -> "bootstrap-guile" [color = peachpuff4];
+  #"sed0" -> "guile-bootstrap+guild" [color = peachpuff4];
+  "tcc" [label = "tcc0", shape = box, fontname = Helvetica];
+  "tcc" -> "bzip2" [color = blue];
+  "tcc" -> "make0" [color = blue];
+  "tcc" -> "tcc0" [color = blue];
+  "tcc" -> "gash" [color = blue];
+  "tcc" -> "gash-core-utils" [color = blue];
+  "tcc" -> "bootstrap-guile" [color = blue];
+  #"tcc" -> "guile-bootstrap+guild" [color = blue];
+  "binutils0" [label = "binutils0", shape = box, fontname = Helvetica];
+  "binutils0" -> "bash0" [color = darkgoldenrod];
+  "binutils0" -> "bzip2" [color = darkgoldenrod];
+  "binutils0" -> "diffutils" [color = darkgoldenrod];
+  "binutils0" -> "gzip" [color = darkgoldenrod];
+  "binutils0" -> "patch" [color = darkgoldenrod];
+  "binutils0" -> "sed0" [color = darkgoldenrod];
+  "binutils0" -> "tcc" [color = darkgoldenrod];
+  "binutils0" -> "make0" [color = darkgoldenrod];
+  "binutils0" -> "gash" [color = darkgoldenrod];
+  "binutils0" -> "gash-core-utils" [color = darkgoldenrod];
+  "binutils0" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"binutils0" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  "gawk0" [label = "gawk0", shape = box, fontname = Helvetica];
+  "gawk0" -> "bash0" [color = dimgrey];
+  "gawk0" -> "bzip2" [color = dimgrey];
+  "gawk0" -> "diffutils" [color = dimgrey];
+  "gawk0" -> "gzip" [color = dimgrey];
+  "gawk0" -> "patch" [color = dimgrey];
+  "gawk0" -> "sed0" [color = dimgrey];
+  "gawk0" -> "tcc" [color = dimgrey];
+  "gawk0" -> "make0" [color = dimgrey];
+  "gawk0" -> "gash" [color = dimgrey];
+  "gawk0" -> "gash-core-utils" [color = dimgrey];
+  "gawk0" -> "bootstrap-guile" [color = dimgrey];
+  #"gawk0" -> "guile-bootstrap+guild" [color = dimgrey];
+  "gcc-core0" [label = "gcc-core0", shape = box, fontname = Helvetica];
+  "gcc-core0" -> "binutils0" [color = red];
+  "gcc-core0" -> "bash0" [color = red];
+  "gcc-core0" -> "bzip2" [color = red];
+  "gcc-core0" -> "diffutils" [color = red];
+  "gcc-core0" -> "gzip" [color = red];
+  "gcc-core0" -> "patch" [color = red];
+  "gcc-core0" -> "sed0" [color = red];
+  "gcc-core0" -> "tcc" [color = red];
+  "gcc-core0" -> "make0" [color = red];
+  "gcc-core0" -> "gash" [color = red];
+  "gcc-core0" -> "gash-core-utils" [color = red];
+  "gcc-core0" -> "bootstrap-guile" [color = red];
+  #"gcc-core0" -> "guile-bootstrap+guild" [color = red];
+
+}
--- a/doc/talks/fosdem21/gcc-mesboot0-scheme-only-unversioned.png
+++ b/doc/talks/fosdem21/gcc-mesboot0-scheme-only-unversioned.png
--- a/doc/talks/fosdem21/gcc-mesboot0-scheme-only.dot
+++ b/doc/talks/fosdem21/gcc-mesboot0-scheme-only.dot
@ -0,0 +1,180 @@
+digraph "Guix package" {
+  "gcc0" [label = "gcc0@2.95.3", shape = box, fontname = Helvetica];
+  "gcc0" -> "glibc0" [color = red];
+  "gcc0" -> "linux-libre-headers" [color = red];
+  "gcc0" -> "binutils0" [color = red];
+  "gcc0" -> "gawk0" [color = red];
+  "gcc0" -> "gcc-core0" [color = red];
+  "gcc0" -> "bash0" [color = red];
+  "gcc0" -> "bzip2" [color = red];
+  "gcc0" -> "diffutils" [color = red];
+  "gcc0" -> "gzip" [color = red];
+  "gcc0" -> "patch" [color = red];
+  "gcc0" -> "sed0" [color = red];
+  "gcc0" -> "make0" [color = red];
+  "gcc0" -> "gash" [color = red];
+  "gcc0" -> "gash-core-utils" [color = red];
+  "gcc0" -> "bootstrap-guile" [color = red];
+  #"gcc0" -> "guile-bootstrap+guild" [color = red];
+  "glibc0" [label = "glibc0@2.2.5", shape = box, fontname = Helvetica];
+  "glibc0" -> "mes-headers" [color = dimgrey];
+  "glibc0" -> "binutils0" [color = dimgrey];
+  "glibc0" -> "gawk0" [color = dimgrey];
+  "glibc0" -> "gcc-core0" [color = dimgrey];
+  "glibc0" -> "bash0" [color = dimgrey];
+  "glibc0" -> "bzip2" [color = dimgrey];
+  "glibc0" -> "diffutils" [color = dimgrey];
+  "glibc0" -> "gzip" [color = dimgrey];
+  "glibc0" -> "patch" [color = dimgrey];
+  "glibc0" -> "sed0" [color = dimgrey];
+  "glibc0" -> "make0" [color = dimgrey];
+  "glibc0" -> "gash" [color = dimgrey];
+  "glibc0" -> "gash-core-utils" [color = dimgrey];
+  "glibc0" -> "bootstrap-guile" [color = dimgrey];
+  #"glibc0" -> "guile-bootstrap+guild" [color = dimgrey];
+  "mes-headers" [label = "mes-headers@0.22", shape = box, fontname = Helvetica];
+  "mes-headers" -> "linux-libre-headers" [color = blue];
+  "mes-headers" -> "bash0" [color = blue];
+  "mes-headers" -> "bzip2" [color = blue];
+  "mes-headers" -> "diffutils" [color = blue];
+  "mes-headers" -> "gzip" [color = blue];
+  "mes-headers" -> "patch" [color = blue];
+  "mes-headers" -> "sed0" [color = blue];
+  "mes-headers" -> "tcc" [color = blue];
+  "mes-headers" -> "make0" [color = blue];
+  "mes-headers" -> "gash" [color = blue];
+  "mes-headers" -> "gash-core-utils" [color = blue];
+  "mes-headers" -> "bootstrap-guile" [color = blue];
+  #"mes-headers" -> "guile-bootstrap+guild" [color = blue];
+  #"linux-libre-headers" [label = "linux-libre-headers-bootstrap@0", shape = box, fontname = Helvetica];
+  "linux-libre-headers" [label = "bootstrap-linux-libre-headers@0", fontname = Helvetica];
+  "bash0" [label = "bash0@2.05b", shape = box, fontname = Helvetica];
+  "bash0" -> "make0" [color = dimgrey];
+  "bash0" -> "tcc0" [color = dimgrey];
+  "bash0" -> "gash" [color = dimgrey];
+  "bash0" -> "gash-core-utils" [color = dimgrey];
+  "bash0" -> "bootstrap-guile" [color = dimgrey];
+  #"bash0" -> "guile-bootstrap+guild" [color = dimgrey];
+  "make0" [label = "make0@3.80", shape = box, fontname = Helvetica];
+  "make0" -> "tcc0" [color = red];
+  "make0" -> "gash" [color = red];
+  "make0" -> "gash-core-utils" [color = red];
+  "make0" -> "bootstrap-guile" [color = red];
+  #"make0" -> "guile-bootstrap+guild" [color = red];
+  "tcc0" [label = "tcc0@0.9.26", shape = box, fontname = Helvetica];
+  "tcc0" -> "mes" [color = darkgoldenrod];
+  "tcc0" -> "bootstrap-mescc-tools" [color = darkgoldenrod];
+  "tcc0" -> "gash" [color = darkgoldenrod];
+  "tcc0" -> "gash-core-utils" [color = darkgoldenrod];
+  "tcc0" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"tcc0" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  "mes" [label = "mes@0.22", shape = box, fontname = Helvetica];
+  #"mes" -> "bootstrap-mes-rewired" [color = darkgoldenrod];
+  "mes" -> "bootstrap-mes" [color = darkgoldenrod];
+  "mes" -> "bootstrap-mescc-tools" [color = darkgoldenrod];
+  "mes" -> "gash" [color = darkgoldenrod];
+  "mes" -> "gash-core-utils" [color = darkgoldenrod];
+  "mes" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"mes" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  #"bootstrap-mes-rewired" [label = "bootstrap-mes-rewired@0.19", shape = box, fontname = Helvetica];
+  #"bootstrap-mes-rewired" -> "bootstrap-mes" [color = dimgrey];
+  #"bootstrap-mes-rewired" -> "gash" [color = dimgrey];
+  #"bootstrap-mes" [label = "bootstrap-mes@0", shape = box, fontname = Helvetica];
+  "bootstrap-mes" [label = "bootstrap-mes@0.19", fontname = Helvetica];
+  "gash" [label = "gash@0.2.0", shape = box, fontname = Helvetica];
+  "gash" -> "bootstrap-guile" [color = darkviolet];
+  # "guile-bootstrap+guild" [label = "guile-bootstrap+guild@2.0", shape = box, fontname = Helvetica];
+  # "guile-bootstrap+guild" -> "bootstrap-guile" [color = blue];
+
+  #"bootstrap-guile" [label = "guile-bootstrap@2.0", shape = box, fontname = Helvetica];
+  "bootstrap-guile" [label = "guile-bootstrap@2.0", fontname = Helvetica];
+  #"bootstrap-mescc-tools" [label = "bootstrap-mescc-tools@0.5.2", shape = box, fontname = Helvetica];
+  "bootstrap-mescc-tools" [label = "bootstrap-mescc-tools@0.5.2", fontname = Helvetica];
+
+  "gash-core-utils" [label = "gash-core-utils@0.0", shape = box, fontname = Helvetica];
+  "gash-core-utils" -> "bootstrap-guile" [color = red];
+  "gash-core-utils" -> "gash" [color = red];
+  "bzip2" [label = "bzip2@1.0.6", shape = box, fontname = Helvetica];
+  "bzip2" -> "make0" [color = darkgoldenrod];
+  "bzip2" -> "tcc0" [color = darkgoldenrod];
+  "bzip2" -> "gash" [color = darkgoldenrod];
+  "bzip2" -> "gash-core-utils" [color = darkgoldenrod];
+  "bzip2" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"bzip2" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  "diffutils" [label = "diffutils@2.7", shape = box, fontname = Helvetica];
+  "diffutils" -> "make0" [color = darkgoldenrod];
+  "diffutils" -> "tcc0" [color = darkgoldenrod];
+  "diffutils" -> "gash" [color = darkgoldenrod];
+  "diffutils" -> "gash-core-utils" [color = darkgoldenrod];
+  "diffutils" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"diffutils" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  "gzip" [label = "gzip@1.2.4", shape = box, fontname = Helvetica];
+  "gzip" -> "tcc0" [color = darkseagreen];
+  "gzip" -> "gash" [color = darkseagreen];
+  "gzip" -> "gash-core-utils" [color = darkseagreen];
+  "gzip" -> "bootstrap-guile" [color = darkseagreen];
+  #"gzip" -> "guile-bootstrap+guild" [color = darkseagreen];
+  "patch" [label = "patch@2.5.9", shape = box, fontname = Helvetica];
+  "patch" -> "make0" [color = peachpuff4];
+  "patch" -> "tcc0" [color = peachpuff4];
+  "patch" -> "gash" [color = peachpuff4];
+  "patch" -> "gash-core-utils" [color = peachpuff4];
+  "patch" -> "bootstrap-guile" [color = peachpuff4];
+  #"patch" -> "guile-bootstrap+guild" [color = peachpuff4];
+  "sed0" [label = "sed0@1.18", shape = box, fontname = Helvetica];
+  "sed0" -> "make0" [color = peachpuff4];
+  "sed0" -> "tcc0" [color = peachpuff4];
+  "sed0" -> "gash" [color = peachpuff4];
+  "sed0" -> "gash-core-utils" [color = peachpuff4];
+  "sed0" -> "bootstrap-guile" [color = peachpuff4];
+  #"sed0" -> "guile-bootstrap+guild" [color = peachpuff4];
+  "tcc" [label = "tcc0@0.9.27", shape = box, fontname = Helvetica];
+  "tcc" -> "bzip2" [color = blue];
+  "tcc" -> "make0" [color = blue];
+  "tcc" -> "tcc0" [color = blue];
+  "tcc" -> "gash" [color = blue];
+  "tcc" -> "gash-core-utils" [color = blue];
+  "tcc" -> "bootstrap-guile" [color = blue];
+  #"tcc" -> "guile-bootstrap+guild" [color = blue];
+  "binutils0" [label = "binutils0@2.14", shape = box, fontname = Helvetica];
+  "binutils0" -> "bash0" [color = darkgoldenrod];
+  "binutils0" -> "bzip2" [color = darkgoldenrod];
+  "binutils0" -> "diffutils" [color = darkgoldenrod];
+  "binutils0" -> "gzip" [color = darkgoldenrod];
+  "binutils0" -> "patch" [color = darkgoldenrod];
+  "binutils0" -> "sed0" [color = darkgoldenrod];
+  "binutils0" -> "tcc" [color = darkgoldenrod];
+  "binutils0" -> "make0" [color = darkgoldenrod];
+  "binutils0" -> "gash" [color = darkgoldenrod];
+  "binutils0" -> "gash-core-utils" [color = darkgoldenrod];
+  "binutils0" -> "bootstrap-guile" [color = darkgoldenrod];
+  #"binutils0" -> "guile-bootstrap+guild" [color = darkgoldenrod];
+  "gawk0" [label = "gawk0@3.0.0", shape = box, fontname = Helvetica];
+  "gawk0" -> "bash0" [color = dimgrey];
+  "gawk0" -> "bzip2" [color = dimgrey];
+  "gawk0" -> "diffutils" [color = dimgrey];
+  "gawk0" -> "gzip" [color = dimgrey];
+  "gawk0" -> "patch" [color = dimgrey];
+  "gawk0" -> "sed0" [color = dimgrey];
+  "gawk0" -> "tcc" [color = dimgrey];
+  "gawk0" -> "make0" [color = dimgrey];
+  "gawk0" -> "gash" [color = dimgrey];
+  "gawk0" -> "gash-core-utils" [color = dimgrey];
+  "gawk0" -> "bootstrap-guile" [color = dimgrey];
+  #"gawk0" -> "guile-bootstrap+guild" [color = dimgrey];
+  "gcc-core0" [label = "gcc-core0@2.95.3", shape = box, fontname = Helvetica];
+  "gcc-core0" -> "binutils0" [color = red];
+  "gcc-core0" -> "bash0" [color = red];
+  "gcc-core0" -> "bzip2" [color = red];
+  "gcc-core0" -> "diffutils" [color = red];
+  "gcc-core0" -> "gzip" [color = red];
+  "gcc-core0" -> "patch" [color = red];
+  "gcc-core0" -> "sed0" [color = red];
+  "gcc-core0" -> "tcc" [color = red];
+  "gcc-core0" -> "make0" [color = red];
+  "gcc-core0" -> "gash" [color = red];
+  "gcc-core0" -> "gash-core-utils" [color = red];
+  "gcc-core0" -> "bootstrap-guile" [color = red];
+  #"gcc-core0" -> "guile-bootstrap+guild" [color = red];
+
+}
--- a/doc/talks/fosdem21/gcc-mesboot0-scheme-only.png
+++ b/doc/talks/fosdem21/gcc-mesboot0-scheme-only.png
--- a/doc/talks/fosdem21/gcc-mesboot0-unversioned.dot
+++ b/doc/talks/fosdem21/gcc-mesboot0-unversioned.dot
@ -0,0 +1,94 @@
+digraph "Guix bag" {
+
+  node[width=1,height=0.25];
+  edge [height=0.25];
+
+  dpi=75
+  # "/gnu/store/gz3agxnnlgkafw2c8jnvk2hqmlh85pkc-guile-bootstrap-2.0.drv" [fontcolor = red]
+
+//HANDCRAFTED UNTIL HERE TO BE ABLE TO CUSTOMIZE
+
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" [label = "gcc0", shape = box, fontname = Helvetica];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/q8d60ln0dxjvqd2ymi1g6xyk3046m23n-linux-libre-headers-bootstrap-0.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = darkgoldenrod];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" [label = "binutils0", shape = box, fontname = Helvetica];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" -> "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [color = peachpuff4];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = peachpuff4];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" -> "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [color = peachpuff4];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = peachpuff4];
+  "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [label = "tcc", shape = box, fontname = Helvetica];
+  "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" -> "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" [color = red];
+  "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" -> "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" [color = red];
+  "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = red];
+  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" [label = "mes", shape = box, fontname = Helvetica];
+  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" -> "/gnu/store/gd83makzwnb2aq1x0hylfsi8gaxln5js-bootstrap-mescc-tools-0.5.2.drv" [color = darkseagreen];
+  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = darkseagreen];
+  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" -> "/gnu/store/629yzay882kh1yhpqddps2psfhpjrk2q-bootstrap-mes-0.19.drv" [color = darkseagreen];
+  #  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" -> "/gnu/store/gz3agxnnlgkafw2c8jnvk2hqmlh85pkc-guile-bootstrap-2.0.drv" [color = darkseagreen];
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [label = "bootstrap-binaries", shape = box, fontname = Helvetica];
+  # "/gnu/store/gz3agxnnlgkafw2c8jnvk2hqmlh85pkc-guile-bootstrap-2.0.drv" [label = "guile-bootstrap", shape = box, fontname = Helvetica];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" [label = "tcc0", shape = box, fontname = Helvetica];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" [color = dimgrey];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/gd83makzwnb2aq1x0hylfsi8gaxln5js-bootstrap-mescc-tools-0.5.2.drv" [color = dimgrey];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = dimgrey];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/629yzay882kh1yhpqddps2psfhpjrk2q-bootstrap-mes-0.19.drv" [color = dimgrey];
+ #  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/gz3agxnnlgkafw2c8jnvk2hqmlh85pkc-guile-bootstrap-2.0.drv" [color = dimgrey];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [label = "diffutils", shape = box, fontname = Helvetica];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" -> "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" [color = blue];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" -> "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [color = blue];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = blue];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = blue];
+  "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [label = "make0", shape = box, fontname = Helvetica];
+  "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" -> "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [color = blue];
+  "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = blue];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" [label = "gcc-core", shape = box, fontname = Helvetica];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" [color = darkseagreen];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [color = darkseagreen];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = darkseagreen];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [color = darkseagreen];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = darkseagreen];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" [label = "glibc0", shape = box, fontname = Helvetica];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/kd7b9sba79s1l7hjdhav51gvci5ws4jy-headers-0.19.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = blue];
+  "/gnu/store/kd7b9sba79s1l7hjdhav51gvci5ws4jy-headers-0.19.drv" [label = "mes-headers", shape = box, fontname = Helvetica];
+  "/gnu/store/kd7b9sba79s1l7hjdhav51gvci5ws4jy-headers-0.19.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = cyan3];
+  "/gnu/store/kd7b9sba79s1l7hjdhav51gvci5ws4jy-headers-0.19.drv" -> "/gnu/store/q8d60ln0dxjvqd2ymi1g6xyk3046m23n-linux-libre-headers-bootstrap-0.drv" [color = cyan3];
+  #"/gnu/store/q8d60ln0dxjvqd2ymi1g6xyk3046m23n-linux-libre-headers-bootstrap-0.drv" [label = "linux-libre-headers-bootstrap", shape = box, fontname = Helvetica];
+  "/gnu/store/q8d60ln0dxjvqd2ymi1g6xyk3046m23n-linux-libre-headers-bootstrap-0.drv" [label = "bootstrap-linux-libre-headers", fontname = Helvetica];
+
+// HANDCRAFTED FROM HERE TO MAKE THE STATIC BOOTSTRAP BINARIES VISIBLE
+
+  bash [fontname = Helvetica]
+  bzip2 [fontname = Helvetica]
+  coreutils [fontname = Helvetica]
+  gawk [fontname = Helvetica]
+  grep [fontname = Helvetica]
+  gzip [fontname = Helvetica]
+  patch [fontname = Helevtica]
+  sed [fontname = Helvetica]
+  tar [fontname = Helvetica]
+  xz [fontname = Helevtica]
+
+  "/gnu/store/gd83makzwnb2aq1x0hylfsi8gaxln5js-bootstrap-mescc-tools-0.5.2.drv" [label = "bootstrap-mescc-tools", fontname = Helvetica];
+  "/gnu/store/629yzay882kh1yhpqddps2psfhpjrk2q-bootstrap-mes-0.19.drv" [label = "bootstrap-mes", fontname = Helvetica];
+
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> bash
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> bzip2
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> coreutils
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> gawk
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> grep
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> gzip
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> patch
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> sed
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> tar
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> xz
+}
--- a/doc/talks/fosdem21/gcc-mesboot0-unversioned.png
+++ b/doc/talks/fosdem21/gcc-mesboot0-unversioned.png
--- a/doc/talks/fosdem21/gcc-mesboot0.dot
+++ b/doc/talks/fosdem21/gcc-mesboot0.dot
@ -0,0 +1,94 @@
+digraph "Guix bag" {
+
+  node[width=1,height=0.25];
+  edge [height=0.25];
+
+  dpi=75
+  # "/gnu/store/gz3agxnnlgkafw2c8jnvk2hqmlh85pkc-guile-bootstrap-2.0.drv" [fontcolor = red]
+
+//HANDCRAFTED UNTIL HERE TO BE ABLE TO CUSTOMIZE
+
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" [label = "gcc0", shape = box, fontname = Helvetica];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/q8d60ln0dxjvqd2ymi1g6xyk3046m23n-linux-libre-headers-bootstrap-0.drv" [color = darkgoldenrod];
+  "/gnu/store/mywrsxmbsz9k87z755mnymmpdjv0jvf1-gcc0-2.95.3.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = darkgoldenrod];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" [label = "binutils0", shape = box, fontname = Helvetica];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" -> "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [color = peachpuff4];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = peachpuff4];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" -> "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [color = peachpuff4];
+  "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = peachpuff4];
+  "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [label = "tcc", shape = box, fontname = Helvetica];
+  "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" -> "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" [color = red];
+  "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" -> "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" [color = red];
+  "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = red];
+  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" [label = "mes", shape = box, fontname = Helvetica];
+  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" -> "/gnu/store/gd83makzwnb2aq1x0hylfsi8gaxln5js-bootstrap-mescc-tools-0.5.2.drv" [color = darkseagreen];
+  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = darkseagreen];
+  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" -> "/gnu/store/629yzay882kh1yhpqddps2psfhpjrk2q-bootstrap-mes-0.19.drv" [color = darkseagreen];
+  #  "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" -> "/gnu/store/gz3agxnnlgkafw2c8jnvk2hqmlh85pkc-guile-bootstrap-2.0.drv" [color = darkseagreen];
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [label = "bootstrap-binaries", shape = box, fontname = Helvetica];
+  # "/gnu/store/gz3agxnnlgkafw2c8jnvk2hqmlh85pkc-guile-bootstrap-2.0.drv" [label = "guile-bootstrap", shape = box, fontname = Helvetica];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" [label = "tcc0", shape = box, fontname = Helvetica];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" [color = dimgrey];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/gd83makzwnb2aq1x0hylfsi8gaxln5js-bootstrap-mescc-tools-0.5.2.drv" [color = dimgrey];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = dimgrey];
+  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/629yzay882kh1yhpqddps2psfhpjrk2q-bootstrap-mes-0.19.drv" [color = dimgrey];
+ #  "/gnu/store/kd9ly1185dn9z1mbkn0wd2r3fcv1bkw5-tcc0-0.9.26-5.c7b3f59.drv" -> "/gnu/store/gz3agxnnlgkafw2c8jnvk2hqmlh85pkc-guile-bootstrap-2.0.drv" [color = dimgrey];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [label = "diffutils", shape = box, fontname = Helvetica];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" -> "/gnu/store/pa9s0y0dx6a60a72434syb1zfxgmqilr-mes-0.19.drv" [color = blue];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" -> "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [color = blue];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = blue];
+  "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = blue];
+  "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [label = "make0", shape = box, fontname = Helvetica];
+  "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" -> "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [color = blue];
+  "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = blue];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" [label = "gcc-core", shape = box, fontname = Helvetica];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" [color = darkseagreen];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/7lcpxky7sn4c9c86ywri6y3x2d4681iv-tcc-0.9.27.drv" [color = darkseagreen];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = darkseagreen];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [color = darkseagreen];
+  "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = darkseagreen];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" [label = "glibc0", shape = box, fontname = Helvetica];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/fh33abhfvsdgdrg54m86yhmkihfp1g2j-binutils0-2.20.1a.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/52nz2cbswm4n91707gy8945h2s4jgvfb-gcc-core-2.95.3.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/qf1x4bvxg8ihbgmv57yyiwkj5y8zzmk0-diffutils-2.7.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/kd7b9sba79s1l7hjdhav51gvci5ws4jy-headers-0.19.drv" [color = blue];
+  "/gnu/store/rn88dllv6vh4mxwbr4v9wjmnl4ml3xs2-glibc0-2.2.5.drv" -> "/gnu/store/vys62fkr9p3qfp9mc36456ffbpz24n60-make0-3.80.drv" [color = blue];
+  "/gnu/store/kd7b9sba79s1l7hjdhav51gvci5ws4jy-headers-0.19.drv" [label = "mes-headers", shape = box, fontname = Helvetica];
+  "/gnu/store/kd7b9sba79s1l7hjdhav51gvci5ws4jy-headers-0.19.drv" -> "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" [color = cyan3];
+  "/gnu/store/kd7b9sba79s1l7hjdhav51gvci5ws4jy-headers-0.19.drv" -> "/gnu/store/q8d60ln0dxjvqd2ymi1g6xyk3046m23n-linux-libre-headers-bootstrap-0.drv" [color = cyan3];
+  #"/gnu/store/q8d60ln0dxjvqd2ymi1g6xyk3046m23n-linux-libre-headers-bootstrap-0.drv" [label = "linux-libre-headers-bootstrap", shape = box, fontname = Helvetica];
+  "/gnu/store/q8d60ln0dxjvqd2ymi1g6xyk3046m23n-linux-libre-headers-bootstrap-0.drv" [label = "bootstrap-linux-libre-headers", fontname = Helvetica];
+
+// HANDCRAFTED FROM HERE TO MAKE THE STATIC BOOTSTRAP BINARIES VISIBLE
+
+  bash [fontname = Helvetica]
+  bzip2 [fontname = Helvetica]
+  coreutils [fontname = Helvetica]
+  gawk [fontname = Helvetica]
+  grep [fontname = Helvetica]
+  gzip [fontname = Helvetica]
+  patch [fontname = Helevtica]
+  sed [fontname = Helvetica]
+  tar [fontname = Helvetica]
+  xz [fontname = Helevtica]
+
+  "/gnu/store/gd83makzwnb2aq1x0hylfsi8gaxln5js-bootstrap-mescc-tools-0.5.2.drv" [label = "bootstrap-mescc-tools", fontname = Helvetica];
+  "/gnu/store/629yzay882kh1yhpqddps2psfhpjrk2q-bootstrap-mes-0.19.drv" [label = "bootstrap-mes", fontname = Helvetica];
+
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> bash
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> bzip2
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> coreutils
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> gawk
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> grep
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> gzip
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> patch
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> sed
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> tar
+  "/gnu/store/00rjhpbkzk86s4pksjg934l310iaxxjr-bootstrap-binaries-0.drv" -> xz
+}
--- a/doc/talks/fosdem21/gcc-mesboot0.png
+++ b/doc/talks/fosdem21/gcc-mesboot0.png
--- a/doc/talks/fosdem21/gcc.png
+++ b/doc/talks/fosdem21/gcc.png
--- a/doc/talks/fosdem21/gnu-make-boot0.dot
+++ b/doc/talks/fosdem21/gnu-make-boot0.dot
@ -0,0 +1,13 @@
+digraph "Guix package" {
+  "39920672" [label = "make-boot0@4.2.1", shape = box, fontname = Helvetica];
+  "39920672" -> "40227520" [color = black];
+  "39920672" -> "40227344" [color = black];
+  "39920672" -> "40227168" [color = black];
+  "39920672" -> "40226992" [color = black];
+  "40227520" [label = "glibc-bootstrap@0", fontname = Helvetica];
+  "40227344" [label = "gcc-bootstrap@0", fontname = Helvetica];
+  "40227344" -> "40227520" [color = black];
+  "40227168" [label = "binutils-bootstrap@0", fontname = Helvetica];
+  "40226992" [label = "bootstrap-binaries@0", fontname = Helvetica];
+
+}
--- a/doc/talks/fosdem21/gnu-make-boot0.png
+++ b/doc/talks/fosdem21/gnu-make-boot0.png
--- a/doc/talks/fosdem21/graphs
+++ b/doc/talks/fosdem21/graphs
@ -0,0 +1,20 @@
+ 3906  ./pre-inst-env guix graph --system=i686-linux gcc-mesboot0
+ 3907  ./pre-inst-env guix graph --system=i686-linux -e '(@@ (gnu packages commencement) gcc-mesboot0)'
+ 3908  ./pre-inst-env guix graph --system=i686-linux -e '(@@ (gnu packages commencement) gcc-mesboot0)' > gcc-mesboot0-scheme-only.dot
+ 3914  ./pre-inst-env guix graph --system=i686-linux -e '(@@ (gnu packages commencement) gcc-core-mesboot0)' > gcc-core-mesboot0-scheme-only.dot
+ 3923  ./pre-inst-env guix graph --system=i686-linux -e '(@@ (gnu packages commencement) gcc-core-mesboot0)' > gcc-core-mesboot0-scheme-only.dotpk
+ 4859  ~/src/guix/version-1.0/pre-inst-env guix graph -e '(@@ (gnu packages commencement) gnu-make-boot0)'
+ 4860  guix graph hello > hello| dot -T png > hello.png
+ 5855  ~/src/guix/version-1.0/pre-inst-env guix graph -e '(@@ (gnu packages commencement) gnu-make-boot0)' > gnu-make-boot0.dot
+ 5859  ~/src/guix/version-1.0/pre-inst-env guix graph -e '(@@ (gnu packages commencement) gnu-make-boot0)' > gnu-make-boot0.dot
+ 5862  ~/src/guix/version-1.0/pre-inst-env guix graph -e '(@@ (gnu packages commencement) gcc-final)' > gcc-final.dot
+ 5865  ~/src/guix/version-1.0/pre-inst-env guix graph -e '(@@ (gnu packages commencement) gcc-boot-0)' > gcc-boot-0.dot
+ 5866  ~/src/guix/version-1.0/pre-inst-env guix graph -e '(@@ (gnu packages commencement) gcc-boot0)' > gcc-boot0.dot
+ 5925  guix graph hello > hello| dot -T png > hello.png
+ 5928  guix graph hello | dot -T png > hello.png
+ 5930  guix graph mes | dot -T png > mes.png
+ 5932  guix graph make | dot -T png > make.png
+10007  git grep 'guix graph'
+10008  history | grep guix graph
+10009  history | grep 'guix graph'
+10010  history | grep 'guix graph' > graphs
--- a/doc/talks/fosdem21/guix-functional.png
+++ b/doc/talks/fosdem21/guix-functional.png
--- a/doc/talks/fosdem21/guix-pronounced-geeks.png
+++ b/doc/talks/fosdem21/guix-pronounced-geeks.png
--- a/doc/talks/fosdem21/guix-reproducible+bootstrappable.png
+++ b/doc/talks/fosdem21/guix-reproducible+bootstrappable.png
--- a/doc/talks/fosdem21/guix.scm
+++ b/doc/talks/fosdem21/guix.scm
@ -0,0 +1 @@
+guix environment --ad-hoc espeak graphviz texlive-bin texlive texlive-latex-base texlive-latex-graphics texlive-latex-geometry texlive-beamer sox ffmpeg vorbis-tools
--- a/doc/talks/fosdem21/human-rights-rms.png
+++ b/doc/talks/fosdem21/human-rights-rms.png
--- a/doc/talks/fosdem21/human-rights-rms.xcf
+++ b/doc/talks/fosdem21/human-rights-rms.xcf
--- a/doc/talks/fosdem21/human-rights.png
+++ b/doc/talks/fosdem21/human-rights.png
--- a/doc/talks/fosdem21/img.org
+++ b/doc/talks/fosdem21/img.org
@ -0,0 +1,86 @@
+#+TITLE: GNU Mes
+#+TITLE: \smaller[2]{-- Scheme-only bootstrap}
+#+DATE:2020-02-02
+#+EMAIL: janneke@gnu.org
+#+AUTHOR: janneke@gnu.org
+#+OPTIONS: ^:nil
+#+COPYRIGHT: janneke (Jan) Nieuwenhuizen <janneke@gn.org>
+#+LICENSE: GNU Free Documentation License, version 1.3 or later.
+#+LATEX_HEADER:\institute{FOSDEM'20}
+#+LATEX_HEADER:\def\ahref#1#2{\htmladdnormallink{#2}{#1}}
+#+OPTIONS: H:2
+#+LATEX_CLASS: beamer
+#+LATEX_CLASS_OPTIONS: [presentation]
+#+LATEX_HEADER: \usepackage{relsize}
+#+LATEX_HEADER: \usepackage{hyperref}
+#+LATEX_HEADER: \mode<beamer>{\usetheme{X}}
+#+LATEX_HEADER: \newcommand<>{\fullscreen}[1]{
+#+LATEX_HEADER: \begin{textblock*}{0cm}(-1cm,-3.78cm)
+#+LATEX_HEADER: \includegraphics[width=\paperwidth]{#1}
+#+LATEX_HEADER: \end{textblock*}
+#+LATEX_HEADER: }
+#+BEAMER_THEME: X
+#+BEAMER_FRAME_LEVEL: 2
+#+COLUMNS: %45ITEM %10BEAMER_ENV(Env) %10BEAMER_ACT(Act) %4BEAMER_COL(Col) %8BEAMER_OPT(Opt)
+
+Ken Thompson UNIX, UTF-8, Golang
+Reflections on trusting trust
+1984 turing award acceptance speach
+
+because toolchains are built by previous versions of themselves
+you can poison an entire line of them
+just by poisoning one generation
+and it would propagate down to future generations
+even if the source code was clean
+
+so, what can we do about a toolchain that consists of countless trusted
+binaries?
+
+reproducible + bootstrappable
+
+=> Minimize trusted binary seeds
+=> Maintain auditable bootstrap path
+
+* Scheme-only bootstrap: Introduction.
+
+** Scheme-only bootstrap: GNU Mes
+
+*** GNU Mes
+   :PROPERTIES:
+   :BEAMER_COL: 0.6
+   :BEAMER_ENV: block
+   :END:
+
+  * A Scheme interpreter written in ~5,000LOC of simple C.
+
+  * A C compiler written in Scheme.
+
+  * Built on Lisp: eval/apply, the *Maxwell Equations of Software*.
+
+*** LOGO
+   :PROPERTIES:
+   :BEAMER_COL: 0.3
+   :BEAMER_ENV: quote
+   :END:
+#+LATEX:\rightskip=2cm\includegraphics[width=0.7\textwidth]{mes.png}
+
+** Reproducible-Builds.org
+#+LATEX:{\begin{frame}[plain]
+#+LATEX:{\hskip-10cm\vskip-2.5cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{reproducible-builds.png}}
+#+LATEX:\end{frame}}
+
+** Reproducible-Builds.org
+#+LATEX:{\begin{frame}[plain]
+#+LATEX:{\vskip-2.5cm\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{reproducible-builds.png}}
+#+LATEX:\end{frame}}
+
+** Reproducible-Builds.org
+#+LATEX:{\begin{frame}[plain]
+#+LATEX:{\vskip-2.5cm{\hspace{-1.5cm}\includegraphics[width=1.1\paperwidth,height=1.1\paperheight]{reproducible-builds.png}}}
+#+LATEX:\end{frame}}
+
+** How to Bootstrap: An Old Recipe...
+#+LATEX:\rightskip=2cm\includegraphics[width=0.3\textwidth]{yoghurt.png}\\
+   #+BEGIN_QUOTE
+Recipe for yoghurt: Add yoghurt to milk -- Anonymous
+   #+END_QUOTE
--- a/doc/talks/fosdem21/intro.org
+++ b/doc/talks/fosdem21/intro.org
@ -0,0 +1,163 @@
+#+TITLE: Bootstrapping Intro
+#+TITLE: \smaller[2]{-- Current status}
+#+DATE:2020-01-30
+#+EMAIL: janneke@gnu.org
+#+AUTHOR: janneke@gnu.org
+#+COPYRIGHT: janneke (Jan Nieuwenhuizen) <janneke@gn.org>
+#+LICENSE: GNU Free Documentation License, version 1.3 or later.
+#+OPTIONS: H:2 @:t ::t
+#+OPTIONS: tex:t latex:t todo:t tasks:t
+#+LATEX_HEADER:\institute{GNU Guix Days @FOSDEM'20}
+#+LATEX_HEADER:\def\ahref#1#2{\htmladdnormallink{#2}{#1}}
+#+LATEX_CLASS: beamer
+#+LATEX_CLASS_OPTIONS: [presentation]
+#+LATEX_HEADER: \usepackage{relsize}
+#+LATEX_HEADER: \usepackage{hyperref}
+#+LATEX_HEADER: \mode<beamer>{\usetheme{X}}
+#+KEYWORDS: GNU, Mes, Mes, Guix, bootstrappable, reproducible
+#+BEAMER_THEME: X
+#+BEAMER_FRAME_LEVEL: 2
+#+COLUMNS: %45ITEM %10BEAMER_ENV(Env) %10BEAMER_ACT(Act) %4BEAMER_COL(Col) %8BEAMER_OPT(Opt)
+
+* Bootstrapping Guix v1.0
+
+** Guix v1.0: The First Package
+#+LATEX:\includegraphics[width=1.0\textwidth]{gnu-make-boot0.png}
+
+** Guix Graph
+
+#+BEGIN_SRC sh
+$ guix graph make
+$ guix graph make | dot -T png > make.png
+$ guix graph -e '(@@ (gnu packages commencement) gnu-make-boot0)'
+#+END_SRC
+
+** Guix v1.0: The First GCC
+#+LATEX:\includegraphics[width=1.3\textwidth]{gcc-boot0-black.png}
+
+** Guix bootstrap tarballs
+#+BEGIN_SRC sh
+$ guix build bootstrap-tarballs
+#+END_SRC
+
+** Guix v1.0 bootstrap binary seed
+#+BEGIN_SRC sh
+$ du -schx $(readlink $(guix build bootstrap-tarballs)/*)
+2.1M	/gnu/store/9623n4bq6iq5c8cwwdq99qb7d0xj93ym-binutils-static-stripped-tarball-2.28.1/binutils-static-stripped-2.28.1-x86_64-linux.tar.xz
+18M	/gnu/store/437xwygmmwwpkddcyy1qvjcv4hak89pb-gcc-stripped-tarball-5.5.0/gcc-stripped-5.5.0-x86_64-linux.tar.xz
+1.8M	/gnu/store/55ccx18a0d1x5y6a575jf1yr0ywizvdg-glibc-stripped-tarball-2.26.105-g0890d5379c/glibc-stripped-2.26.105-g0890d5379c-x86_64-linux.tar.xz
+5.7M	/gnu/store/bqf0ajclbvnbm0a46819f30804y3ilx0-guile-static-stripped-tarball-2.2.3/guile-static-stripped-2.2.3-x86_64-linux.tar.xz
+5.8M	/gnu/store/j8yzjmh9sy4gbdfwjrhw46zca43aah6x-static-binaries-tarball-0/static-binaries-0-x86_64-linux.tar.xz
+33M	total
+$ for i in $(readlink $(guix build bootstrap-tarballs)/*);\
+  do sudo tar xf $i; done
+$ du -schx *
+130M	bin
+13M	include
+54M	lib
+51M	libexec
+5.2M	share
+252M	total
+#+END_SRC
+
+** Reduce binary seeds to bare minimum
+   #+BEGIN_QUOTE
+These big chunks of binary code are practically non-auditable which
+breaks the source to binary transparency that we get in the rest of
+the package dependency graph.
+   #+END_QUOTE
+   #+BEGIN_QUOTE
+Every unauditable binary leaves us vulnerable to compiler backdoors as
+described by Ken Thompson in the 1984 paper *Reflections on Trusting
+Trust*.
+   #+END_QUOTE
+   #+BEGIN_QUOTE
+Thus, our goal is to reduce the set of bootstrap binaries to the bare
+minimum.  -- Ludovic Courtès (GNU Guix documentation, December 2017)
+   #+END_QUOTE
+
+** Guix Reduced Binary Seed
+#+BEGIN_SRC sh
+$ du -schx $(readlink $(guix build bootstrap-tarballs)/*)
+5.7M	/gnu/store/9f8gi8raqfx9j3l9d00qrrc0jg3r1kyj-guile-static-stripped-tarball-2.2.6/guile-static-stripped-2.2.6-x86_64-linux.tar.xz
+80K	/gnu/store/b6rjl52hibhmvyw4dg8678pwryhla0h2-linux-libre-headers-stripped-tarball-4.19.56/linux-libre-headers-stripped-4.19.56-x86_64-linux.tar.xz
+12K	/gnu/store/d7zlxsjcnqilmvqwx7scija9x9bjw8cw-mescc-tools-static-stripped-tarball-0.5.2-0.bb062b0/mescc-tools-static-stripped-0.5.2-0.bb062b0-x86_64-linux.tar.xz
+428K	/gnu/store/n7zc4kpi8ny6jlfaikkzxlwhc5fvr1vr-mes-minimal-stripped-tarball-0.19/mes-minimal-stripped-0.19-x86_64-linux.tar.xz
+6.0M	/gnu/store/nv4djwlrljfqmynqr2cqvfwz0ydx7kxb-static-binaries-tarball-0/static-binaries-0-x86_64-linux.tar.xz
+13M	total
+$ for i in $(readlink $(guix build bootstrap-tarballs)/*);\
+  do sudo tar xf $i; done
+Password:
+$ du -schx *
+93M	bin
+700K	include
+38M	lib
+14M	share
+145M	total
+#+END_SRC
+
+** Guix Scheme-only bootstrap
+#+BEGIN_SRC sh
+$ du -schx $(readlink $(~/src/guix/wip-bootstrap/pre-inst-env guix build bootstrap-tarballs)/*)
+5.7M	/gnu/store/1mq2pcd2h7g54xpi2jrgj6ibbi4lgi3c-guile-static-stripped-tarball-2.2.6/guile-static-stripped-2.2.6-x86_64-linux.tar.xz
+80K	/gnu/store/bl1r2bpk6fam8r2gjvr5mvr48i3dm2hn-linux-libre-headers-stripped-tarball-4.19.56/linux-libre-headers-stripped-4.19.56-x86_64-linux.tar.xz
+12K	/gnu/store/w0dlz486dhb8aiq8pxm5akllz628fqin-mescc-tools-static-stripped-tarball-0.5.2-0.bb062b0/mescc-tools-static-stripped-0.5.2-0.bb062b0-x86_64-linux.tar.xz
+428K	/gnu/store/15j6l18q44ymlrh1cfp4s4hc9835xic5-mes-minimal-stripped-tarball-0.19/mes-minimal-stripped-0.19-x86_64-linux.tar.xz
+6.2M	total
+$ for i in $(readlink $(~/src/guix/wip-bootstrap/pre-inst-env guix build bootstrap-tarballs)/*);\
+  do sudo tar xf $i; done
+$ du -schx *
+4.9M	bin
+700K	include
+38M	lib
+14M	share
+57M	total
+#+END_SRC
+
+** Scheme-only bootstrap: Gash Core Utils
+
+#+BEGIN_SRC sh
+awk       cp       gash   mv      sleep  uname
+basename  cut      grep   pwd     sort   uniq
+bash      diff     gzip   reboot  tar    wc
+cat       dirname  head   rm      test   which
+chmod     expr     ln     rmdir   touch
+cmp       false    ls     sed     tr
+compress  find     mkdir  sh      true
+#+END_SRC
+
+* Aim for the Stars: Full Source Bootstrap
+
+** Full Source Bootstrap
+#+LATEX:\includegraphics[width=0.6\textwidth]{fsb-logo-guile-guix-mes.png}
+
+** Full Source Bootstrap: Stage 0
+#+LATEX:\rightskip=2cm\includegraphics[width=0.8\textwidth]{stage-0.png}
+
+** Full Source Bootstrap: Stage 1
+#+LATEX:\rightskip=2cm\includegraphics[width=0.85\textwidth]{stage-1.png}
+
+** Full Source Bootstrap: Stage 2
+#+LATEX:\rightskip=2cm\includegraphics[width=0.75\textwidth]{stage-2.png}
+
+** Full Source Bootstrap: Stage mes
+#+LATEX:\rightskip=2cm\includegraphics[width=0.75\textwidth]{stage-mes.png}
+
+** Full Source Bootstrap: Stage mesboot
+#+LATEX:\rightskip=2cm\includegraphics[width=1.0\textwidth]{stage-mesboot.png}
+
+* legalese
+  :PROPERTIES:
+  :BEAMER_ENV: note
+  :COPYING: t
+  :END:
+
+  Copyright \copy 2019, 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+
+  #+BEGIN_QUOTE
+  Permission is granted to copy, distribute and/or modify this
+  document under the terms of the GNU Free Documentation License,
+  Version 1.3 or any later version published by the Free Software
+  Foundation; with no Invariant Sections, with no Front-Cover Texts,
+  and with no Back-Cover Texts.
+  #+END_QUOTE
--- a/doc/talks/fosdem21/intro.pdf
+++ b/doc/talks/fosdem21/intro.pdf
--- a/doc/talks/fosdem21/ken-thompson.png
+++ b/doc/talks/fosdem21/ken-thompson.png
--- a/doc/talks/fosdem21/languages.org
+++ b/doc/talks/fosdem21/languages.org
@ -0,0 +1,32 @@
+* < 1 week *Trivial*
+** Trusting trust attack can compromise entire system
+** System language, essential applications
+
+| Program | Depndency | Seed |
+|---------+-----------+------|
+| Gcc     | GCC-1     |      |
+| Guile   | C         |      |
+|---------+-----------+------|
+
+
+* < 1 year *Doable*
+** Trusting trust attack can lead to data loss
+** Emerging application programming languages
+
+| Program | Dependency | Seed      |
+|---------+------------+-----------|
+| rust    | rust-1     | mrustc(?) |
+|         |            |           |
+|         |            |           |
+|---------+------------+-----------|
+
+* >= 1 year *Impossible*
+** OK to ignore Trusting trust attack
+** Experimental languages, toy languages
+
+| Program | Dependency | Seed |
+|---------+------------+------|
+| C       |            |      |
+|         |            |      |
+|         |            |      |
+|---------+------------+------|
--- a/doc/talks/fosdem21/logos/android.png
+++ b/doc/talks/fosdem21/logos/android.png
--- a/doc/talks/fosdem21/logos/android.svg
+++ b/doc/talks/fosdem21/logos/android.svg
--- a/doc/talks/fosdem21/logos/apple.png
+++ b/doc/talks/fosdem21/logos/apple.png
--- a/doc/talks/fosdem21/logos/apple.svg
+++ b/doc/talks/fosdem21/logos/apple.svg
--- a/doc/talks/fosdem21/logos/debian.png
+++ b/doc/talks/fosdem21/logos/debian.png
--- a/doc/talks/fosdem21/logos/debian.svg
+++ b/doc/talks/fosdem21/logos/debian.svg
--- a/doc/talks/fosdem21/logos/fedora.png
+++ b/doc/talks/fosdem21/logos/fedora.png
--- a/doc/talks/fosdem21/logos/fedora.svg
+++ b/doc/talks/fosdem21/logos/fedora.svg
--- a/doc/talks/fosdem21/logos/freebsd.png
+++ b/doc/talks/fosdem21/logos/freebsd.png
--- a/doc/talks/fosdem21/logos/freebsd.svg
+++ b/doc/talks/fosdem21/logos/freebsd.svg
--- a/doc/talks/fosdem21/logos/guix.png
+++ b/doc/talks/fosdem21/logos/guix.png
--- a/doc/talks/fosdem21/logos/guix.svg
+++ b/doc/talks/fosdem21/logos/guix.svg
--- a/doc/talks/fosdem21/logos/macos.png
+++ b/doc/talks/fosdem21/logos/macos.png
--- a/doc/talks/fosdem21/logos/macos.svg
+++ b/doc/talks/fosdem21/logos/macos.svg
--- a/doc/talks/fosdem21/logos/netbsd.png
+++ b/doc/talks/fosdem21/logos/netbsd.png
--- a/doc/talks/fosdem21/logos/netbsd.svg
+++ b/doc/talks/fosdem21/logos/netbsd.svg
--- a/doc/talks/fosdem21/logos/nixos.png
+++ b/doc/talks/fosdem21/logos/nixos.png
--- a/doc/talks/fosdem21/logos/nixos.svg
+++ b/doc/talks/fosdem21/logos/nixos.svg
--- a/doc/talks/fosdem21/logos/openbsd.png
+++ b/doc/talks/fosdem21/logos/openbsd.png
--- a/doc/talks/fosdem21/logos/openbsd.svg
+++ b/doc/talks/fosdem21/logos/openbsd.svg
--- a/doc/talks/fosdem21/logos/opensuse.png
+++ b/doc/talks/fosdem21/logos/opensuse.png
--- a/Show More
+++ b/Show More
				`@ -0,0 +1 @@`
				`guix environment --ad-hoc espeak graphviz texlive-bin texlive texlive-latex-base texlive-latex-graphics texlive-latex-geometry texlive-beamer sox ffmpeg vorbis-tools`