#+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
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#+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}}
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** 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