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02/04: talks: fosdem-2020: Add talk for "container" track.


From: Ludovic Courtčs
Subject: 02/04: talks: fosdem-2020: Add talk for "container" track.
Date: Sun, 2 Feb 2020 17:33:22 -0500 (EST)

civodul pushed a commit to branch master
in repository maintenance.

commit 3ddaff30826a7bcfc4e473303ff1b5bd20b4741b
Author: Ludovic Courtès <address@hidden>
AuthorDate: Mon Jan 27 11:21:34 2020 +0100

    talks: fosdem-2020: Add talk for "container" track.
    
    * talks/fosdem-2020/containers: New directory.
---
 .gitignore                                         |    9 +
 .../containers/images/Git-Logo-2Color.pdf          |    1 +
 .../containers/images/Guix-horizontal-print.pdf    |    1 +
 talks/fosdem-2020/containers/images/Guix-white.pdf |    1 +
 .../images/Murner.Nerrenbeschwerung.kind.jpg       |  Bin 0 -> 431851 bytes
 .../fosdem-2020/containers/images/arrow-right.pdf  |    1 +
 .../containers/images/bootstrap-graph-reduced.dot  |  137 ++
 .../containers/images/bootstrap-graph-reduced.pdf  |  Bin 0 -> 20694 bytes
 .../containers/images/bootstrap-graph.dot          |   14 +
 .../containers/images/bootstrap-graph.pdf          |  Bin 0 -> 8724 bytes
 .../containers/images/bootstrappable.pdf           |  Bin 0 -> 8854 bytes
 .../containers/images/bootstrappable.svg           |  401 ++++++
 talks/fosdem-2020/containers/images/clouds.jpg     |  Bin 0 -> 88610 bytes
 .../fosdem-2020/containers/images/cumulunimbus.jpg |  Bin 0 -> 51552 bytes
 talks/fosdem-2020/containers/images/delorean.jpg   |    1 +
 .../containers/images/docker-guix-lol.pdf          |    1 +
 .../containers/images/emblem-system-symbolic.pdf   |  Bin 0 -> 1427 bytes
 .../containers/images/guix-scope-systems.pdf       |  Bin 0 -> 6426 bytes
 talks/fosdem-2020/containers/images/guix-scope.pdf |  Bin 0 -> 6373 bytes
 talks/fosdem-2020/containers/images/guix-scope.svg | 1335 ++++++++++++++++++++
 talks/fosdem-2020/containers/images/low-clouds.jpg |  Bin 0 -> 91527 bytes
 .../containers/images/owncloud-dockerfile.png      |  Bin 0 -> 137436 bytes
 .../images/reflections-on-trusting-trust.png       |  Bin 0 -> 182534 bytes
 .../containers/images/reproducible-builds.pdf      |  Bin 0 -> 4017 bytes
 .../containers/images/reproducible-builds.svg      |  107 ++
 .../containers/images/rust-bootstrap.dot           |   55 +
 .../containers/images/rust-bootstrap.pdf           |  Bin 0 -> 8424 bytes
 talks/fosdem-2020/containers/images/smoothie.pdf   |    1 +
 .../images/software-heritage-logo-title-white.pdf  |    1 +
 talks/fosdem-2020/containers/images/sun.jpg        |  Bin 0 -> 20661 bytes
 .../throwing-the-baby-out-with-the-bathwater.jpg   |  Bin 0 -> 144918 bytes
 talks/fosdem-2020/containers/images/thunder.jpg    |  Bin 0 -> 65385 bytes
 talks/fosdem-2020/containers/outline.org           |  134 ++
 talks/fosdem-2020/containers/rules.ini             |    9 +
 talks/fosdem-2020/containers/talk.tex              |  901 +++++++++++++
 35 files changed, 3110 insertions(+)

diff --git a/.gitignore b/.gitignore
index d290e5f..7928c8d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -194,3 +194,12 @@
 /talks/bluehats-2019/talk.snm
 /talks/bluehats-2019/talk.toc
 /talks/bluehats-2019/talk.vrb
+/talks/fosdem-2020/containers/talk.aux
+/talks/fosdem-2020/containers/talk.log
+/talks/fosdem-2020/containers/talk.nav
+/talks/fosdem-2020/containers/talk.out
+/talks/fosdem-2020/containers/talk.pdf
+/talks/fosdem-2020/containers/talk.snm
+/talks/fosdem-2020/containers/talk.toc
+/talks/fosdem-2020/containers/talk.vrb
+/talks/fosdem-2020/containers/talk.dvi
diff --git a/talks/fosdem-2020/containers/images/Git-Logo-2Color.pdf 
b/talks/fosdem-2020/containers/images/Git-Logo-2Color.pdf
new file mode 120000
index 0000000..5c8de51
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/Git-Logo-2Color.pdf
@@ -0,0 +1 @@
+../../../aramis-2019/images/Git-Logo-2Color.pdf
\ No newline at end of file
diff --git a/talks/fosdem-2020/containers/images/Guix-horizontal-print.pdf 
b/talks/fosdem-2020/containers/images/Guix-horizontal-print.pdf
new file mode 120000
index 0000000..d2bce8f
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/Guix-horizontal-print.pdf
@@ -0,0 +1 @@
+../../../fosdem-2019/minimalist/images/Guix-horizontal-print.pdf
\ No newline at end of file
diff --git a/talks/fosdem-2020/containers/images/Guix-white.pdf 
b/talks/fosdem-2020/containers/images/Guix-white.pdf
new file mode 120000
index 0000000..151b57b
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/Guix-white.pdf
@@ -0,0 +1 @@
+../../../fosdem-2019/minimalist/images/Guix-white.pdf
\ No newline at end of file
diff --git 
a/talks/fosdem-2020/containers/images/Murner.Nerrenbeschwerung.kind.jpg 
b/talks/fosdem-2020/containers/images/Murner.Nerrenbeschwerung.kind.jpg
new file mode 100644
index 0000000..7117362
Binary files /dev/null and 
b/talks/fosdem-2020/containers/images/Murner.Nerrenbeschwerung.kind.jpg differ
diff --git a/talks/fosdem-2020/containers/images/arrow-right.pdf 
b/talks/fosdem-2020/containers/images/arrow-right.pdf
new file mode 120000
index 0000000..57aea1c
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/arrow-right.pdf
@@ -0,0 +1 @@
+../../../aramis-2019/images/arrow-right.pdf
\ No newline at end of file
diff --git a/talks/fosdem-2020/containers/images/bootstrap-graph-reduced.dot 
b/talks/fosdem-2020/containers/images/bootstrap-graph-reduced.dot
new file mode 100644
index 0000000..f27836d
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/bootstrap-graph-reduced.dot
@@ -0,0 +1,137 @@
+digraph "Guix bag" {
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" [label = 
"make-boot0@4.2.1", shape = box, fontname = Helvetica];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" [color = 
cyan3];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
[color = cyan3];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/wmf4y32lq5jrci7q85pgrkq9bckkziqf-gcc-mesboot-wrapper-4.7.4.drv" 
[color = cyan3];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" [color = 
cyan3];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = cyan3];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/awv71y21ybrr68ygxd154ivaaclj4qg2-bootstrap-mescc-tools-0.5.2.drv" 
[color = cyan3];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/fl6qxjcg355pagvngd96gf5nir678cwk-bootstrap-mes-0.drv" [color = 
cyan3];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
cyan3];
+  "/gnu/store/xmqfk1h1725w6gbxfpvhdvv71ib9870s-make-boot0-4.2.1.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
cyan3];
+  "/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" 
[label = "glibc-mesboot@2.16.0", shape = box, fontname = Helvetica];
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"/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
[color = red];
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"/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" [color = 
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+  "/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" -> 
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
[color = red];
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"/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" [color = 
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"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
red];
+  "/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
red];
+  "/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" -> 
"/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" [color 
= red];
+  "/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" -> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = red];
+  "/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" -> 
"/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" [color = 
red];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
[label = "binutils-mesboot@2.20.1a", shape = box, fontname = Helvetica];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
-> "/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
[color = magenta];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
-> "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" 
[color = magenta];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
-> "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" [color 
= magenta];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = magenta];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = magenta];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
-> "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" 
[color = magenta];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
-> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = magenta];
+  "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
-> "/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" [color 
= magenta];
+  "/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
[label = "binutils-mesboot0@2.20.1a", shape = box, fontname = Helvetica];
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-> "/gnu/store/zajwffxc2bi3kby5898rjwp3ycdx6sjy-tcc-boot-0.9.27.drv" [color = 
dimgrey];
+  "/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = dimgrey];
+  "/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = dimgrey];
+  "/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
-> "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" 
[color = dimgrey];
+  "/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
-> "/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" [color 
= dimgrey];
+  "/gnu/store/zajwffxc2bi3kby5898rjwp3ycdx6sjy-tcc-boot-0.9.27.drv" [label = 
"tcc-boot@0.9.27", shape = box, fontname = Helvetica];
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"/gnu/store/cn42d0h7l8zc72sj20xnr3w47za4kw6s-mes-boot-0.19.drv" [color = red];
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[color = red];
+  "/gnu/store/zajwffxc2bi3kby5898rjwp3ycdx6sjy-tcc-boot-0.9.27.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
red];
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"mes-boot@0.19", shape = box, fontname = Helvetica];
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[color = dimgrey];
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"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
dimgrey];
+  "/gnu/store/cn42d0h7l8zc72sj20xnr3w47za4kw6s-mes-boot-0.19.drv" -> 
"/gnu/store/fl6qxjcg355pagvngd96gf5nir678cwk-bootstrap-mes-0.drv" [color = 
dimgrey];
+  
"/gnu/store/awv71y21ybrr68ygxd154ivaaclj4qg2-bootstrap-mescc-tools-0.5.2.drv" 
[label = "bootstrap-mescc-tools@0.5.2", shape = box, fontname = Helvetica];
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[label = "bootstrap-binaries@0", shape = box, fontname = Helvetica];
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"bootstrap-mes@0", shape = box, fontname = Helvetica];
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[label = "tcc-boot0@0.9.26-6.c004e9a", shape = box, fontname = Helvetica];
+  "/gnu/store/dsn288nnc52x09mswnjs98y366k9brcq-tcc-boot0-0.9.26-6.c004e9a.drv" 
-> "/gnu/store/cn42d0h7l8zc72sj20xnr3w47za4kw6s-mes-boot-0.19.drv" [color = 
darkviolet];
+  "/gnu/store/dsn288nnc52x09mswnjs98y366k9brcq-tcc-boot0-0.9.26-6.c004e9a.drv" 
-> 
"/gnu/store/awv71y21ybrr68ygxd154ivaaclj4qg2-bootstrap-mescc-tools-0.5.2.drv" 
[color = darkviolet];
+  "/gnu/store/dsn288nnc52x09mswnjs98y366k9brcq-tcc-boot0-0.9.26-6.c004e9a.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = darkviolet];
+  "/gnu/store/dsn288nnc52x09mswnjs98y366k9brcq-tcc-boot0-0.9.26-6.c004e9a.drv" 
-> "/gnu/store/fl6qxjcg355pagvngd96gf5nir678cwk-bootstrap-mes-0.drv" [color = 
darkviolet];
+  "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" 
[label = "diffutils-mesboot@2.7", shape = box, fontname = Helvetica];
+  "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" -> 
"/gnu/store/cn42d0h7l8zc72sj20xnr3w47za4kw6s-mes-boot-0.19.drv" [color = 
dimgrey];
+  "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" -> 
"/gnu/store/zajwffxc2bi3kby5898rjwp3ycdx6sjy-tcc-boot-0.9.27.drv" [color = 
dimgrey];
+  "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
dimgrey];
+  "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
dimgrey];
+  "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" -> 
"/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" [color = 
dimgrey];
+  "/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" [label 
= "make-mesboot0@3.80", shape = box, fontname = Helvetica];
+  "/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" -> 
"/gnu/store/zajwffxc2bi3kby5898rjwp3ycdx6sjy-tcc-boot-0.9.27.drv" [color = 
dimgrey];
+  "/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
dimgrey];
+  "/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
dimgrey];
+  "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" 
[label = "glibc-mesboot0@2.2.5", shape = box, fontname = Helvetica];
+  "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" -> 
"/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
[color = magenta];
+  "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" -> 
"/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" 
[color = magenta];
+  "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
magenta];
+  "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
magenta];
+  "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" -> 
"/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" [color 
= magenta];
+  "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" -> 
"/gnu/store/6wchqw6i2jlqvr29sgakznwr2vpz7g8y-mesboot-headers-0.19.drv" [color = 
magenta];
+  "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" -> 
"/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" [color = 
magenta];
+  "/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" 
[label = "gcc-core-mesboot@2.95.3", shape = box, fontname = Helvetica];
+  "/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" -> 
"/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
[color = darkseagreen];
+  "/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" -> 
"/gnu/store/zajwffxc2bi3kby5898rjwp3ycdx6sjy-tcc-boot-0.9.27.drv" [color = 
darkseagreen];
+  "/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
darkseagreen];
+  "/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
darkseagreen];
+  "/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" -> 
"/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" [color 
= darkseagreen];
+  "/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" -> 
"/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" [color = 
darkseagreen];
+  "/gnu/store/6wchqw6i2jlqvr29sgakznwr2vpz7g8y-mesboot-headers-0.19.drv" 
[label = "mesboot-headers@0.19", shape = box, fontname = Helvetica];
+  "/gnu/store/6wchqw6i2jlqvr29sgakznwr2vpz7g8y-mesboot-headers-0.19.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
darkgoldenrod];
+  "/gnu/store/6wchqw6i2jlqvr29sgakznwr2vpz7g8y-mesboot-headers-0.19.drv" -> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = darkgoldenrod];
+  
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [label = "linux-libre-headers-bootstrap@0", shape = box, fontname = Helvetica];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" [label 
= "gcc-mesboot0@2.95.3", shape = box, fontname = Helvetica];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" -> 
"/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
[color = darkviolet];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" -> 
"/gnu/store/pywx782lm7nrsbg2dxzzh6f3cgsyic35-gcc-core-mesboot-2.95.3.drv" 
[color = darkviolet];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" -> 
"/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" [color = 
darkviolet];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
darkviolet];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
darkviolet];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" -> 
"/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" [color 
= darkviolet];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" -> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = darkviolet];
+  "/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" -> 
"/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" [color = 
darkviolet];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
[label = "glibc-headers-mesboot@2.16.0", shape = box, fontname = Helvetica];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> "/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
[color = dimgrey];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> "/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" 
[color = dimgrey];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" [color 
= dimgrey];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> "/gnu/store/6wchqw6i2jlqvr29sgakznwr2vpz7g8y-mesboot-headers-0.19.drv" 
[color = dimgrey];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = dimgrey];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = dimgrey];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> "/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" 
[color = dimgrey];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = dimgrey];
+  
"/gnu/store/27zvyk378j2vyyqv9l1dlqzp5ldqqkaz-glibc-headers-mesboot-2.16.0.drv" 
-> "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" [color = 
dimgrey];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" [label 
= "gcc-mesboot1@4.7.4", shape = box, fontname = Helvetica];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" -> 
"/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
[color = dimgrey];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" -> 
"/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" [color = 
dimgrey];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" -> 
"/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" [color = 
dimgrey];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
dimgrey];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
dimgrey];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" -> 
"/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" [color 
= dimgrey];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" -> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = dimgrey];
+  "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" -> 
"/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" [color = 
dimgrey];
+  "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" [label = 
"make-mesboot@3.82", shape = box, fontname = Helvetica];
+  "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" -> 
"/gnu/store/xqp9xn8v370sf887rhrns68cvg3kz2n3-binutils-mesboot0-2.20.1a.drv" 
[color = peachpuff4];
+  "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" -> 
"/gnu/store/zrnhglk67xc8701zbsw58c0fmnbp75z0-glibc-mesboot0-2.2.5.drv" [color = 
peachpuff4];
+  "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" -> 
"/gnu/store/crfm7vmph6cw1chfnxxdf2f9pvg62knp-gcc-mesboot0-2.95.3.drv" [color = 
peachpuff4];
+  "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" -> 
"/gnu/store/bkjm21s9f7797bb30dx56azmhd2gnvqa-make-mesboot0-3.80.drv" [color = 
peachpuff4];
+  "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
peachpuff4];
+  "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
peachpuff4];
+  "/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" -> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = peachpuff4];
+  "/gnu/store/wmf4y32lq5jrci7q85pgrkq9bckkziqf-gcc-mesboot-wrapper-4.7.4.drv" 
[label = "gcc-mesboot-wrapper@4.7.4", shape = box, fontname = Helvetica];
+  "/gnu/store/wmf4y32lq5jrci7q85pgrkq9bckkziqf-gcc-mesboot-wrapper-4.7.4.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = cyan3];
+  "/gnu/store/wmf4y32lq5jrci7q85pgrkq9bckkziqf-gcc-mesboot-wrapper-4.7.4.drv" 
-> "/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" 
[color = cyan3];
+  "/gnu/store/wmf4y32lq5jrci7q85pgrkq9bckkziqf-gcc-mesboot-wrapper-4.7.4.drv" 
-> "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" [color = 
cyan3];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" [label = 
"gcc-mesboot@4.9.4", shape = box, fontname = Helvetica];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/aiy6k5wlrjzl7kxd9zfpxb5nfjdxiq82-binutils-mesboot-2.20.1a.drv" 
[color = peachpuff4];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/sbgi11hwbr41zd3hjg2w18w27fphisw1-gcc-mesboot1-wrapper-4.7.4.drv" 
[color = peachpuff4];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" [color = 
peachpuff4];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" [color = 
peachpuff4];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
peachpuff4];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" [color = 
peachpuff4];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/17hzzynybbdnyiwg5cbh3y9ba8kb0vxg-diffutils-mesboot-2.7.drv" [color 
= peachpuff4];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/vrq2a7h6ya4gws23hqn6ygi7wnib6496-linux-libre-headers-bootstrap-0.drv"
 [color = peachpuff4];
+  "/gnu/store/ghpg2libayj02dkm6hkp6d44ivkv894z-gcc-mesboot-4.9.4.drv" -> 
"/gnu/store/lkmx7360vlvfigz88s4y427m72w8as1a-make-mesboot-3.82.drv" [color = 
peachpuff4];
+  "/gnu/store/sbgi11hwbr41zd3hjg2w18w27fphisw1-gcc-mesboot1-wrapper-4.7.4.drv" 
[label = "gcc-mesboot1-wrapper@4.7.4", shape = box, fontname = Helvetica];
+  "/gnu/store/sbgi11hwbr41zd3hjg2w18w27fphisw1-gcc-mesboot1-wrapper-4.7.4.drv" 
-> "/gnu/store/n08bmic0cc7xsbxz7vapbh8rkk27qyis-bootstrap-binaries-0.drv" 
[color = darkviolet];
+  "/gnu/store/sbgi11hwbr41zd3hjg2w18w27fphisw1-gcc-mesboot1-wrapper-4.7.4.drv" 
-> "/gnu/store/mw0skn92ac1nqhmh89qsqwm27jz3l1jq-glibc-mesboot-2.16.0.drv" 
[color = darkviolet];
+  "/gnu/store/sbgi11hwbr41zd3hjg2w18w27fphisw1-gcc-mesboot1-wrapper-4.7.4.drv" 
-> "/gnu/store/iynqblmi51xxnzr2i6vyb59lk0l6phzi-gcc-mesboot1-4.7.4.drv" [color 
= darkviolet];
+
+}
diff --git a/talks/fosdem-2020/containers/images/bootstrap-graph-reduced.pdf 
b/talks/fosdem-2020/containers/images/bootstrap-graph-reduced.pdf
new file mode 100644
index 0000000..1f33c88
Binary files /dev/null and 
b/talks/fosdem-2020/containers/images/bootstrap-graph-reduced.pdf differ
diff --git a/talks/fosdem-2020/containers/images/bootstrap-graph.dot 
b/talks/fosdem-2020/containers/images/bootstrap-graph.dot
new file mode 100644
index 0000000..f351ebb
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/bootstrap-graph.dot
@@ -0,0 +1,14 @@
+digraph "Guix package" {
+  "29061504" [label = "make-boot0@4.2.1", shape = box, fontname = Helvetica];
+  "29061504" -> "43943040" [color = cyan3];
+  "29061504" -> "43942848" [color = cyan3];
+  "29061504" -> "43942656" [color = cyan3];
+  "29061504" -> "43942464" [color = cyan3];
+  "29061504" -> "43942464" [color = cyan3];
+  "43943040" [label = "glibc-bootstrap@0", shape = box, fontname = Helvetica];
+  "43942848" [label = "gcc-bootstrap@0", shape = box, fontname = Helvetica];
+  "43942848" -> "43943040" [color = darkviolet];
+  "43942656" [label = "binutils-bootstrap@0", shape = box, fontname = 
Helvetica];
+  "43942464" [label = "bootstrap-binaries@0", shape = box, fontname = 
Helvetica];
+
+}
diff --git a/talks/fosdem-2020/containers/images/bootstrap-graph.pdf 
b/talks/fosdem-2020/containers/images/bootstrap-graph.pdf
new file mode 100644
index 0000000..b2dac60
Binary files /dev/null and 
b/talks/fosdem-2020/containers/images/bootstrap-graph.pdf differ
diff --git a/talks/fosdem-2020/containers/images/bootstrappable.pdf 
b/talks/fosdem-2020/containers/images/bootstrappable.pdf
new file mode 100644
index 0000000..e0bba65
Binary files /dev/null and 
b/talks/fosdem-2020/containers/images/bootstrappable.pdf differ
diff --git a/talks/fosdem-2020/containers/images/bootstrappable.svg 
b/talks/fosdem-2020/containers/images/bootstrappable.svg
new file mode 100644
index 0000000..86d802c
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/bootstrappable.svg
@@ -0,0 +1,401 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/";
+   xmlns:cc="http://creativecommons.org/ns#";
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
+   xmlns:svg="http://www.w3.org/2000/svg";
+   xmlns="http://www.w3.org/2000/svg";
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd";
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape";
+   viewBox="0 0 670.74129 378.80721"
+   width="100%"
+   height="100%"
+   preserveAspectRatio="xMinYMin meet"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.92.1 r15371"
+   sodipodi:docname="banner.svg">
+  <title
+     id="title4648">Bootstrappable builds logo</title>
+  <defs
+     id="defs4" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="0.98994949"
+     inkscape:cx="379.22658"
+     inkscape:cy="169.50442"
+     inkscape:document-units="px"
+     inkscape:current-layer="text4471"
+     showgrid="false"
+     showborder="true"
+     inkscape:window-width="1278"
+     inkscape:window-height="798"
+     inkscape:window-x="1"
+     inkscape:window-y="1"
+     inkscape:window-maximized="0"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0" />
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
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+               shape=box];
+       32273536 -> 32273920     [color=darkseagreen];
+       32273536 -> 32273920     [color=darkseagreen];
+       32274304         [fontname=Helvetica,
+               label="rust@1.25.0",
+               shape=box];
+       32273920 -> 32274304     [color=darkgoldenrod];
+       32273920 -> 32274304     [color=darkgoldenrod];
+       32274688         [fontname=Helvetica,
+               label="rust@1.24.1",
+               shape=box];
+       32274304 -> 32274688     [color=darkseagreen];
+       32274304 -> 32274688     [color=darkseagreen];
+       32275072         [fontname=Helvetica,
+               label="rust@1.23.0",
+               shape=box];
+       32274688 -> 32275072     [color=red];
+       32274688 -> 32275072     [color=red];
+       32275456         [fontname=Helvetica,
+               label="rust@1.22.1",
+               shape=box];
+       32275072 -> 32275456     [color=darkseagreen];
+       32275072 -> 32275456     [color=darkseagreen];
+       32275840         [fontname=Helvetica,
+               label="rust@1.21.0",
+               shape=box];
+       32275456 -> 32275840     [color=dimgrey];
+       32275456 -> 32275840     [color=dimgrey];
+       32276224         [fontname=Helvetica,
+               label="rust@1.20.0",
+               shape=box];
+       32275840 -> 32276224     [color=red];
+       32275840 -> 32276224     [color=red];
+       32190656         [fontname=Helvetica,
+               label="rust@1.19.0",
+               shape=box];
+       32276224 -> 32190656     [color=peachpuff4];
+       32276224 -> 32190656     [color=peachpuff4];
+       32190848         [fontname=Helvetica,
+               label="mrustc@0.8.0",
+               shape=box];
+       32190656 -> 32190848     [color=cyan3];
+       32190656 -> 32190848     [color=cyan3];
+}
diff --git a/talks/fosdem-2020/containers/images/rust-bootstrap.pdf 
b/talks/fosdem-2020/containers/images/rust-bootstrap.pdf
new file mode 100644
index 0000000..6e06b14
Binary files /dev/null and 
b/talks/fosdem-2020/containers/images/rust-bootstrap.pdf differ
diff --git a/talks/fosdem-2020/containers/images/smoothie.pdf 
b/talks/fosdem-2020/containers/images/smoothie.pdf
new file mode 120000
index 0000000..4e3d6cf
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/smoothie.pdf
@@ -0,0 +1 @@
+../../../in2p3-2019/images/smoothie.pdf
\ No newline at end of file
diff --git 
a/talks/fosdem-2020/containers/images/software-heritage-logo-title-white.pdf 
b/talks/fosdem-2020/containers/images/software-heritage-logo-title-white.pdf
new file mode 120000
index 0000000..b575630
--- /dev/null
+++ b/talks/fosdem-2020/containers/images/software-heritage-logo-title-white.pdf
@@ -0,0 +1 @@
+../../../aramis-2019/images/software-heritage-logo-title-white.pdf
\ No newline at end of file
diff --git a/talks/fosdem-2020/containers/images/sun.jpg 
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 differ
diff --git a/talks/fosdem-2020/containers/images/thunder.jpg 
b/talks/fosdem-2020/containers/images/thunder.jpg
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differ
diff --git a/talks/fosdem-2020/containers/outline.org 
b/talks/fosdem-2020/containers/outline.org
new file mode 100644
index 0000000..2f1f5e0
--- /dev/null
+++ b/talks/fosdem-2020/containers/outline.org
@@ -0,0 +1,134 @@
+#+TITLE: Guix: Unifying provisioning, deployment, and package management in 
the age of containers
+
+* Summary
+
+When it comes to software deployment, we are getting used to a new
+distribution of roles among many actors: traditional distros take care
+of core software pieces, “application bundles” à la Docker/Flatpak
+provide complex applications, Cabal, Gem, npm, pip, and friends take
+care of language-specific software, and Puppet/Ansible orchestrate the
+whole thing. Each of these tools has its justification, but the end
+result is a maze that’s hard to deal with.
+
+In this talk I will present GNU Guix, a software deployment toolbox and
+its associated distro that feature transactional upgrades and rollbacks,
+declarative OS deployment inspired by Nix, and reproducible builds. I
+will show how Guix approaches a variety of use cases: “package
+management” à la apt-get, environment management à la VirtualEnv,
+Ansible-style declarative OS deployment, and container provisioning Ă  la
+Docker.
+
+Guix emphasizes programmability and one of its salient features is that
+it provides a unified Scheme programming environment to deal with with
+all the aspects of configuration, deployment, and system
+management—including service management by PID 1. I will illustrate how
+this works out on standalone Guix systems, and show the benefits of the
+approach by discussing applications that take advantage of Guix as a
+library to support reproducible software deployment.
+
+Last, I will reflect on the road that led to Guix 1.0 six months ago and
+present some of the challenges ahead.
+
+* Abstract
+
+This talk will reflect on what GNU Guix has to offer to users and how it
+compares to other approaches—from CONDA and pip to Flatpak and
+Docker. Guix is not only a transactional package manager and declarative
+GNU/Linux distribution: it’s also an environment manager, a container
+provisioning tool, and more. We will describe these tools and our
+journey to 1.0, emphasizing key properties that set Guix apart:
+reproducibility, transparency, and hackability.
+
+* intro: ?
+
+* Guix
+
+** package management -> take from jcad-2018
+
+** ‘guix describe’ + ‘guix pull’
+
+
+** operating system
+
+** guix deploy
+
+* “It’s all about source code.”
+
+** functional model
+
+** ‘guix system describe’ (Quine)
+
+   #+begin_src scheme
+     ((lambda (x)
+       (list x (list (quote quote) x)))
+      (quote
+       (lambda (x)
+        (list x (list (quote quote) x)))))
+
+   #+end_src
+
+** reproducible builds
+
+** bootstrapping
+
+  - bootstrap from nothing
+
+** Software Heritage
+
+* what's cooking?
+
+** Guix-HPC
+
+** Guix-Jupyter
+
+** ‘guix deploy’
+
+** Guile 3
+
+** contributor stats
+
+** Outreachy + GSoC
+
+** link to other talks
+
+* Get it!
+
+* COMMENT references
+
+  - 
[[https://blog.florentdelannoy.com/blog/2020/introducing-zeitgeist/][Zeitgeist]],
 “Zeitgeist is a language-agnostic dependency checker.”
+  - https://www.jres.org/fr/programme/
+
+* COMMENT demo preparation
+
+#+BEGIN_SRC emacs-lisp :exports none
+  (org-babel-do-load-languages
+   'org-babel-load-languages
+   '((emacs-lisp . t)
+     (scheme . t)
+     (shell . t)))
+#+END_SRC
+
+#+RESULTS:
+
+#+BEGIN_SRC sh :exports none
+  mkdir -p /tmp/home/demo
+  cp -fv ./os.scm /tmp/home/demo
+  export USER=demo
+  export HOME=/tmp/home/demo
+  export PS1='guix-demo \w\$ '
+  export GUIX_BUILD_OPTIONS=--no-grafts
+  export GUIX_DISK_SPACE_WARNING=0
+  mkdir -p "$HOME/.config/guix"
+  cd
+  rm -f my-profile.scm
+  echo '(specifications->manifest '"'"'("guile" "emacs" "emacs-geiser"))' > 
my-profile.scm
+  (cd $HOME/.config/guix ; ln -s ~ludo/.config/guix/current)
+  unset GUILE_LOAD_PATH
+  unset GUILE_LOAD_COMPILED_PATH
+  export 
PATH=$HOME/.config/guix/current/bin:$HOME/.guix-profile/bin:/run/current-system/profile/bin:$HOME/local/bin:/run/setuid-programs
+  rm -f /var/guix/profiles/per-user/demo/guix-profile*
+  rm -f ~/.guix-profile
+  rm -f old-* new-*
+  unset LANGUAGE
+#+END_SRC
+
diff --git a/talks/fosdem-2020/containers/rules.ini 
b/talks/fosdem-2020/containers/rules.ini
new file mode 100644
index 0000000..5a74423
--- /dev/null
+++ b/talks/fosdem-2020/containers/rules.ini
@@ -0,0 +1,9 @@
+;; Rules for Rubber.
+
+[dot-pdf]
+target = (.*)\.pdf
+source = \1.dot
+rule = shell
+cost = 0
+command = dot -Tpdf -Gratio=.78 -o $target $source
+message = rendering $source into $target
diff --git a/talks/fosdem-2020/containers/talk.tex 
b/talks/fosdem-2020/containers/talk.tex
new file mode 100644
index 0000000..16e6147
--- /dev/null
+++ b/talks/fosdem-2020/containers/talk.tex
@@ -0,0 +1,901 @@
+% The comment below tells Rubber to compile the .dot files.
+%
+% rubber: module graphics
+% rubber: rules rules.ini
+
+% Make sure URLs are broken on hyphens.
+% See <https://tex.stackexchange.com/questions/3033/forcing-linebreaks-in-url>.
+\RequirePackage[hyphens]{url}
+
+\documentclass[aspectratio=169]{beamer}
+\usepackage{ragged2e}           % for 'flushleft', etc.
+
+\usetheme{default}
+
+\usefonttheme{structurebold}
+
+% Nice sans-serif font.
+\usepackage[sfdefault,lining]{FiraSans} %% option 'sfdefault' activates Fira 
Sans as the default text font
+%% \usepackage[fakebold]{firamath-otf}
+\renewcommand*\oldstylenums[1]{{\firaoldstyle #1}}
+
+% Nice monospace font.
+\usepackage{inconsolata}
+%% \renewcommand*\familydefault{\ttdefault} %% Only if the base font of the 
document is to be typewriter style
+\usepackage[T1]{fontenc}
+
+
+% Typeset maths using a slanted, serif font.
+\def\mathfamilydefault{\rmdefault}
+
+\ProcessOptionsBeamer
+
+\usepackage{helvet}
+
+
+%% \usepackage{fontspec}
+%% \setmainfont[
+%%     Ligatures=TeX,
+%%     UprightFont = *-Boo,
+%%     ItalicFont = *-BooObl,
+%%     SmallCapsFont = *SC-Boo,
+%%     BoldFont = *-Dem,
+%%     BoldItalicFont = *-DemObl
+%% ]{Futura}
+
+\usepackage{multimedia}         % movie
+\usecolortheme{seagull}         % white on black
+
+\usepackage[utf8]{inputenc}
+\PassOptionsToPackage{hyphens}{url}\usepackage{hyperref,xspace,multicol}
+\usepackage[absolute,overlay]{textpos}
+\usepackage{tikz}
+\usetikzlibrary{arrows,shapes,trees,shadows,positioning}
+\usepackage{fancyvrb}           % for \Verb
+
+% Remember the position of every picture.
+\tikzstyle{every picture}+=[remember picture]
+
+\tikzset{onslide/.code args={<#1>#2}{%
+  \only<#1>{\pgfkeysalso{#2}} % \pgfkeysalso doesn't change the path
+}}
+
+% Colors.
+\definecolor{guixred1}{RGB}{226,0,38}  % red P
+\definecolor{guixorange1}{RGB}{243,154,38}  % guixorange P
+\definecolor{guixyellow}{RGB}{254,205,27}  % guixyellow P
+\definecolor{guixred2}{RGB}{230,68,57}  % red S
+\definecolor{guixred3}{RGB}{115,34,27}  % dark red
+\definecolor{guixorange2}{RGB}{236,117,40}  % guixorange S
+\definecolor{guixtaupe}{RGB}{134,113,127} % guixtaupe S
+\definecolor{guixgrey}{RGB}{91,94,111} % guixgrey S
+\definecolor{guixdarkgrey}{RGB}{46,47,55} % guixdarkgrey S
+\definecolor{guixblue1}{RGB}{38,109,131} % guixblue S
+\definecolor{guixblue2}{RGB}{10,50,80} % guixblue S
+\definecolor{guixgreen1}{RGB}{133,146,66} % guixgreen S
+\definecolor{guixgreen2}{RGB}{157,193,7} % guixgreen S
+
+\setbeamerfont{title}{size=\huge}
+\setbeamerfont{frametitle}{size=\huge}
+\setbeamerfont{normal text}{size=\Large}
+
+% White-on-black color theme.
+\setbeamercolor{structure}{fg=guixorange1,bg=black}
+\setbeamercolor{title}{fg=white,bg=black}
+\setbeamercolor{date}{fg=guixorange1,bg=black}
+\setbeamercolor{frametitle}{fg=white,bg=black}
+\setbeamercolor{titlelike}{fg=white,bg=black}
+\setbeamercolor{normal text}{fg=white,bg=black}
+\setbeamercolor{alerted text}{fg=guixyellow,bg=black}
+\setbeamercolor{section in toc}{fg=white,bg=black}
+\setbeamercolor{section in toc shaded}{fg=white,bg=black}
+\setbeamercolor{subsection in toc}{fg=guixorange1,bg=black}
+\setbeamercolor{subsection in toc shaded}{fg=white,bg=black}
+\setbeamercolor{subsubsection in toc}{fg=guixorange1,bg=black}
+\setbeamercolor{subsubsection in toc shaded}{fg=white,bg=black}
+\setbeamercolor{frametitle in toc}{fg=white,bg=black}
+\setbeamercolor{local structure}{fg=guixorange1,bg=black}
+
+\newcommand{\highlight}[1]{\alert{\textbf{#1}}}
+
+\title{GNU Guix: Unifying provisioning, deployment, and package management}
+\author{Ludovic Courtès}
+\date{FOSDEM, 1 February 2020}
+
+\setbeamertemplate{navigation symbols}{} % remove the navigation bar
+
+\AtBeginSection[]{
+  \begin{frame}
+    \frametitle{}
+    \tableofcontents[currentsection]
+  \end{frame} 
+}
+
+
+\newcommand{\screenshot}[2][width=\paperwidth]{
+  \begin{frame}[plain]
+    \begin{tikzpicture}[remember picture, overlay]
+      \node [at=(current page.center), inner sep=0pt]
+        {\includegraphics[{#1}]{#2}};
+    \end{tikzpicture}
+  \end{frame}
+}
+
+
+\begin{document}
+
+\begin{frame}[plain, fragile]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+          {\includegraphics[width=\paperwidth]{images/sun}};
+  \end{tikzpicture}
+
+  {\color{guixdarkgrey}\Huge{\textbf{\\GNU Guix:\\Unifying provisioning,
+  deployment,\\and package management}}}
+  \vfill{}
+  {\color{guixdarkgrey}{\Large{Ludovic Courtès}}}
+  \\[4mm]
+  {\color{guixorange2}{\Large{{FOSDEM, \oldstylenums{1 February 2020}}}}}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixred3,fg=white}
+\begin{frame}[plain]
+  \begin{quotation}
+    \noindent
+    \begin{flushright}
+    \LARGE{``The Linux distribution as we know it is \textbf{coming to
+        an end}, and is being replaced by a new concept of
+      containerized, multi-instance, multi-user applications [...]''}
+    \end{flushright}
+  \end{quotation}
+  \hfill{--- Daniel Riek (\oldstylenums{2020})}
+
+  \begin{tikzpicture}[overlay]
+    \node [at=(current page.south east), anchor=south east]{
+      \url{https://fosdem.org/2020/schedule/event/riek_kubernetes/}
+    };
+  \end{tikzpicture}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+% 
https://commons.wikimedia.org/wiki/Category:Sun?uselang=fr#/media/File:%22Sun%22.JPG
+% 
https://en.wikipedia.org/wiki/Zenith#/media/File:Tropical-area-mactan-philippines.jpg
+\begin{frame}[plain, fragile]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+          {\includegraphics[width=\paperwidth]{images/sun}};
+    \node [at=(current page.center), text=black,
+           text opacity=1, rounded corners=2pt]
+          {\LARGE{\textbf{ Slackware {\tt |} Debian {\tt |} Red Hat }}};
+  \end{tikzpicture}
+\end{frame}
+
+
+% 
https://commons.wikimedia.org/wiki/Category:Clouds_from_below?uselang=fr#/media/File:Cloud_(5018750171).jpg
+% 
https://commons.wikimedia.org/wiki/Category:Clouds_from_below?uselang=fr#/media/File:Chigwell_Meadow_Essex_England_-_cumulus_clouds.jpg
+% 
https://commons.wikimedia.org/wiki/Category:Clouds_from_below?uselang=fr#/media/File:Clouds_above_Lordship_Recreation_Ground_Haringey_London_England_1.jpg
+% 
https://commons.wikimedia.org/wiki/Category:Clouds_and_blue_sky?uselang=fr#/media/File:2018_05_Havelland_IMG_1931.JPG
+\begin{frame}[plain, fragile]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+          {\includegraphics[width=1.4\paperwidth]{images/clouds}};
+    \node [at=(current page.center), text=white,
+           text opacity=1, rounded corners=2pt]
+          {\LARGE{\textbf{ modules {\tt |} Spack {\tt |} EasyBuild {\tt
+                  |} VirtualEnv }}};
+  \end{tikzpicture}
+\end{frame}
+
+
+% 
https://commons.wikimedia.org/wiki/Category:Cumulus_congestus_clouds?uselang=fr#/media/File:Cumulunimbus_IMG_5537.JPG
+\begin{frame}[plain, fragile]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+          {\includegraphics[width=1.4\paperwidth]{images/cumulunimbus}};
+    \node [at=(current page.center), text=white,
+           text opacity=1, rounded corners=2pt]
+          {\LARGE{\textbf{ Ansible {\tt |} Puppet {\tt |} Propellor }}};
+  \end{tikzpicture}
+\end{frame}
+
+% 
https://commons.wikimedia.org/wiki/Category:Stratus_clouds?uselang=fr#/media/File:2018-05-18_18_27_24_Low_stratiform_clouds_(base_near_3,000_feet_AGL)_with_wavy,_bumpy_base_viewed_from_Mercer_County_Route_622_(North_Olden_Avenue)_in_Ewing_Township,_Mercer_County,_New_Jersey.jpg
+\begin{frame}[plain, fragile]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+          {\includegraphics[width=1.4\paperwidth]{images/low-clouds}};
+    \node [at=(current page.center), text=white, inner sep=5cm,
+           text opacity=1, rounded corners=2pt, fill=black, opacity=.5]
+          {\LARGE{\textbf{ pip {\tt |} Cabal {\tt |} Cargo {\tt |} CONDA
+          {\tt |} Gradle }}};
+  \end{tikzpicture}
+\end{frame}
+
+
+% 
https://commons.wikimedia.org/wiki/Category:Cloud-to-cloud_lightning#/media/File:004_2018_05_14_Extremes_Wetter.jpg
+\begin{frame}[plain, fragile]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+          {\includegraphics[width=1.4\paperwidth]{images/thunder}};
+    \node [at=(current page.center), text=white,
+           text opacity=1, rounded corners=2pt]
+          {\LARGE{\textbf{ Flatpak {\tt |} snap {\tt |} Docker {\tt |} Vagrant 
}}};
+  \end{tikzpicture}
+\end{frame}
+
+% TODO 2048 vuln + Docker license opacity
+
+\setbeamercolor{normal text}{bg=guixred3}
+\begin{frame}[plain, fragile]
+  \center{\Huge{\textbf{Are distros doomed?}}}
+  %% \\[2cm]
+  %% \uncover<2->{\center{Yes!} \par}
+  %% \uncover<3->{\center{No!} \par}
+\end{frame}
+\setbeamercolor{normal text}{bg=black,fg=white}
+
+\setbeamercolor{normal text}{bg=guixred3,fg=white}
+\begin{frame}[plain]
+  \begin{quotation}
+    \begin{flushright}
+    \LARGE{``Debian and other distributions are going to be \textbf{that
+        thing you run docker on}, little~more.''}
+    \end{flushright}
+  \end{quotation}
+  \hfill{--- Jos Poortvliet, ownCloud developer (\oldstylenums{2016})}
+
+  \begin{tikzpicture}[overlay]
+    \node [at=(current page.south east), anchor=south east]{
+      \url{http://lwn.net/Articles/670566/}
+    };
+  \end{tikzpicture}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\setbeamercolor{normal text}{fg=white,bg=white}
+\begin{frame}[plain]
+  \begin{tikzpicture}[remember picture, overlay]
+    % 
https://github.com/owncloud-docker/server/blob/master/v19.10/Dockerfile.amd64
+    \node [at=(current page.center), inner sep=0pt]
+          {\includegraphics[height=\paperheight]{images/owncloud-dockerfile}};
+
+    \node [at=(current page.center), anchor=south west, overlay,
+           inner sep=3mm, rounded corners,
+           text=black, text opacity=1, fill=white, opacity=.5, text width=7cm]
+          {\LARGE{\textbf{It's also that thing you run \emph{inside} 
Docker!}}};
+  \end{tikzpicture}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\begin{frame}[plain]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+      {\includegraphics[width=1.3\textwidth]{images/smoothie}};
+    \node [at=(current page.south east), anchor=south east, text=guixgrey]
+      {\small{courtesy of Ricardo Wurmus}};
+  \end{tikzpicture}
+\end{frame}
+
+% 
https://en.wikipedia.org/wiki/Don't_throw_the_baby_out_with_the_bathwater#/media/File:Murner.Nerrenbeschwerung.kind.jpg
+\setbeamercolor{normal text}{bg=white}
+\screenshot[height=.95\paperheight]{images/throwing-the-baby-out-with-the-bathwater}
+
+\setbeamercolor{normal text}{bg=white}
+\begin{frame}[plain]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+          
{\includegraphics[width=0.7\paperwidth]{images/Guix-horizontal-print}};
+  \end{tikzpicture}
+\end{frame}
+
+\screenshot{images/guix-scope}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+% demo
+\begin{frame}[fragile]
+
+  \begin{semiverbatim}
+    \LARGE{
+guix \alert{install} gcc-toolchain openmpi hwloc
+
+eval `guix package \alert{--search-paths}=prefix`
+
+guix package \alert{--roll-back}
+
+guix install \alert{--profile}=./experiment \\
+     gcc-toolchain@5.5 hwloc@1
+}
+  \end{semiverbatim}
+\end{frame}
+
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+    \LARGE{
+guix package \alert{--manifest}=my-packages.scm
+
+
+
+    (\alert{specifications->manifest}
+      '("gcc-toolchain" "emacs"
+        "guile" "emacs-geiser"))
+}
+  \end{semiverbatim}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixdarkgrey}
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+    \Large{
+bob@laptop$ guix package \alert{--manifest}=my-packages.scm
+bob@laptop$ guix \alert{describe}
+  guix cabba9e
+    repository URL: https://git.sv.gnu.org/git/guix.git
+    commit: cabba9e15900d20927c1f69c6c87d7d2a62040fe
+
+\pause
+
+
+alice@supercomp$ guix \alert{pull} --commit=cabba9e
+alice@supercomp$ guix package \alert{--manifest}=my-packages.scm
+}
+  \end{semiverbatim}
+
+  %% \begin{tikzpicture}[overlay]
+  %%   \node<3>[rounded corners=4, text centered, anchor=north,
+  %%         fill=guixorange1, text width=7cm,
+  %%         inner sep=3mm, opacity=.75, text opacity=1]
+  %%     at (current page.center) {
+  %%           \textbf{\Large{bit-reproducible \& portable!}}
+  %%         };
+  %% \end{tikzpicture}
+\end{frame}
+
+\begin{frame}[fragile]
+  \begin{tikzpicture}[remember picture, overlay]
+    % 
https://commons.wikimedia.org/wiki/File:TeamTimeCar.com-BTTF_DeLorean_Time_Machine-OtoGodfrey.com-JMortonPhoto.com-07.jpg
+    \node [at=(current page.center), inner sep=0pt]
+          {\includegraphics[width=\paperwidth]{images/delorean}};
+    \node [rounded corners=4, text centered, anchor=north,
+           text width=10cm,
+          inner sep=3mm, opacity=.75, text opacity=1]
+      at (current page.center) {
+            \textbf{\Huge{travel in space \emph{and} time!}}
+          };
+  \end{tikzpicture}
+\end{frame}
+
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+    \LARGE{
+guix \alert{time-machine} --commit=cabba9e -- \\
+     install hello
+    }
+  \end{semiverbatim}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixblue1}
+\begin{frame}[fragile]%{``Virtual environments''}
+  \LARGE{
+    \begin{semiverbatim}
+guix \alert{environment} --ad-hoc\uncover<2->{ \alert{--container}} \\
+      python python-numpy python-scipy \\
+      -- python3
+    \end{semiverbatim}
+  }
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixred3}
+\begin{frame}[fragile]%{Container provisioning}
+  \LARGE{
+    \begin{semiverbatim}
+\$ guix \alert{pack}\only<2>{ --relocatable}\only<3->{ --format=docker} \\
+      python python-numpy
+\textrm{...}
+/gnu/store/\textrm{...}-\only<1-2>{pack.tar.gz}\only<3->{docker-image.tar.gz}
+    \end{semiverbatim}
+  }
+\end{frame}
+
+\setbeamercolor{normal text}{bg=white}
+\screenshot[width=.9\paperwidth]{images/docker-guix-lol}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\screenshot{images/guix-scope-systems}
+
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+    \Large{
+<\textit{bob}> this is how Guix System works: you tell it
+     what you want, and it puts all the pieces in place
+     for you
+
+<\textit{alice}> yeah you just need to speak its language
+
+<\textit{civodul}> such a fine language, though :-)
+}
+  \end{semiverbatim}
+  \vfill{
+  (seen on \#guix)}
+\end{frame}
+
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+    \vspace{-1cm}
+    \small{
+(\alert{operating-system}
+  (host-name "guixbox")
+  (timezone "Europe/Brussels")
+  (locale "fr_BE.utf8")
+  (bootloader (\alert{bootloader-configuration}
+                (bootloader grub-efi-bootloader)
+                (target "/boot/efi")))
+  (file-systems (append (list (\alert{file-system}
+                                (device (file-system-label "my-root"))
+                                (mount-point "/")
+                                (type "ext4")))
+                        %base-file-systems))
+  (users (append (list (\alert{user-account}
+                         (name "charlie")
+                         (group "users")
+                         (home-directory "/home/charlie")))
+                 %base-user-accounts))
+  (services (append (list (\alert{service} dhcp-client-service-type)
+                          (\alert{service} openssh-service-type))
+                    %base-services)))
+    }
+  \end{semiverbatim}
+\end{frame}
+
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+    \Large{
+\$ guix system \alert{vm} config.scm
+\textrm{...}   
+
+\$ guix system \alert{docker-image} config.scm
+\textrm{...}
+
+\$ guix system \alert{container} config.scm
+\textrm{...}
+
+\$ guix system \alert{reconfigure} config.scm
+\textrm{...}
+}
+  \end{semiverbatim}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixdarkgrey}
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+(\alert{define} (os-for-machine n)
+  ;; \textsf{\textit{Return an OS for machine number N.}}
+  (operating-system
+    (host-name (string-append "machine"
+                              (number->string n)))
+    \textsf{...}))
+
+;; \textsf{\textit{Return a list of machines.}}
+(map (\alert{lambda} (n)
+       (\alert{machine}
+        (operating-system (os-for-machine n))
+        \only<1-3>{(environment managed-host-environment-type)
+        (configuration (\alert{machine-ssh-configuration}
+                         (host-name (ip-for-machine 
n))))))}\only<4->{(environment digital-ocean-environment-type)
+        (configuration (\alert{digital-ocean-configuration}
+                         (region "nyc3")
+                         \textsf{...}))))}
+     (list 1 2 3 4 5))
+  \end{semiverbatim}
+
+  \begin{tikzpicture}[overlay]
+    \node<1-2> at (14,6) [anchor=north east,
+           inner sep=1mm, rotate=-30, shape=star,
+           fill=guixorange1, text=white] {
+      \Large{\textbf{New!}}
+    };
+
+    \node<2>  [at=(current page.center), inner sep=5mm,
+               rounded corners, fill=black, text=white,
+               opacity=.75, text opacity=1] {
+      \LARGE{\texttt{guix deploy machines.scm}}
+    };
+  \end{tikzpicture}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixgreen1}
+\begin{frame}[fragile]
+  \Huge{\textbf{It's all about source code.}}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixgrey}
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+(define audacity
+  (\alert{package}
+    (name "audacity")
+    (home-page "https://github.com/audacity/audacity";)
+    (\alert{source} (origin
+              (method git-fetch)
+              (uri (git-reference
+                     (\alert{url} home-page)
+                     (\alert{commit} "2f30ff07a")\tikz{\node(commit){};}
+                     (recursive? #t)))
+              (sha256
+               (base32
+                "106rf402cvfdhc2yf\textrm{...}"))))
+    \textrm{...}))
+  \end{semiverbatim}
+
+  \begin{tikzpicture}[overlay]
+    \node<2->(swh) [inner sep=3mm, rounded corners, fill=black,
+                    opacity=.3, text opacity=1] at (12,5) {
+       % https://annex.softwareheritage.org/public/logo/
+       
\includegraphics[width=0.33\textwidth]{images/software-heritage-logo-title-white}
+    };
+    \node<2->      [at=(current page.south), anchor=south,
+                    inner sep=2mm, rounded corners, fill=black, text 
width=13cm,
+                    opacity=.3, text opacity=1] {
+       
\url{https://www.softwareheritage.org/2019/04/18/software-heritage-and-gnu-guix-join-forces-to-enable-long-term-reproducibility/}
+    };
+
+    \path<2->[very thick, draw=guixorange1]
+      (swh) edge [out=-90, in=0, ->] (commit);
+  \end{tikzpicture}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=white}
+\screenshot[width=.8\paperwidth]{images/reproducible-builds}
+\setbeamercolor{normal text}{bg=guixdarkgrey}
+
+
+\begin{frame}[plain]
+  \LARGE{
+    $\texttt{emacs} = f(\texttt{gtk+}, \texttt{gcc}, \texttt{make}, 
\texttt{coreutils})$
+    \\[1.1cm]
+    \uncover<2->{$\texttt{gtk+} = g(\texttt{glib}, \texttt{gcc}, 
\texttt{make}, \texttt{coreutils})$}
+    \\[1.1cm]
+    \uncover<3->{$\texttt{gcc} = h(\texttt{make}, \texttt{coreutils}, 
\texttt{gcc}_0)$}
+    \\[1.1cm]
+    \uncover<3->{\textrm{...}}
+  }
+
+  \uncover<1>{\large{where $f =$ \texttt{./configure \&\& make \&\& make 
install}}}
+
+  %% \begin{tikzpicture}[overlay]
+  %%   \node<4->[fill=guixorange1, text=black, text opacity=1, opacity=.7,
+  %%         rounded corners=2mm, inner sep=5mm] at (5, 1) {
+  %%           \textbf{\Large{the complete DAG is captured}}
+  %%         };
+  %% \end{tikzpicture}
+\end{frame}
+%% \begin{frame}[fragile]
+%%   \begin{tikzpicture}[overlay]
+%%     \node [at=(current page.north west), anchor=north west,
+%%       outer sep=4mm, text=white, text width=13mm]{
+%%       \texttt{configure},
+%%       \texttt{src/hello.c},
+%%       GCC,\\
+%%       Binutils,
+%%       etc.
+%%     };
+%%     \node [at=(current page.center), outer sep=3mm, font=\rmfamily]{
+%%       {\fontfamily{roman}\fontsize{45}{45}{$f(x,y,z)$}}
+%%     };
+%%   \end{tikzpicture}
+%% \end{frame}
+\setbeamercolor{normal text}{bg=black}
+
+\begin{frame}[fragile]
+  %% \frametitle{Bit-Reproducible Builds$^*$}
+  %% \framesubtitle{$^*$ almost!}
+
+  \begin{semiverbatim}
+    \Large{
+\$ guix build hello
+\uncover<2->{/gnu/store/\tikz[baseline]{\node[anchor=base](nixhash){\alert<2>{h2g4sf72\textrm{...}}};}-hello-2.10}
+
+\uncover<3->{\$ \alert<3>{guix gc --references 
/gnu/store/\textrm{...}-hello-2.10}
+/gnu/store/\textrm{...}-glibc-2.29
+/gnu/store/\textrm{...}-gcc-7.4.0-lib
+/gnu/store/\textrm{...}-hello-2.10
+}}
+  \end{semiverbatim}
+
+  \begin{tikzpicture}[overlay]
+    \node<1>(labelnixhash) [fill=white, text=black, inner sep=0.5cm,
+       rounded corners] at (current page.center) {%
+      \Large{\textbf{isolated build}: chroot, separate name spaces, etc.}
+    };
+
+    \node<2>(labelnixhash) [fill=white, text=black] at (4cm, 2cm) {%
+      hash of \textbf{all} the dependencies};
+    \path[->]<2>(labelnixhash.north) edge [bend left, in=180, out=-45] 
(nixhash.south);
+
+    \draw<4-> (-10pt, 105pt) [very thick, color=guixorange2, rounded 
corners=8pt]
+      arc (10:-50:-50pt and 110pt);
+    \node<4->[fill=white, text=black, text opacity=1, opacity=.7,
+          rounded corners=2mm, inner sep=5mm]
+      at (7, 2) {\textbf{\Large{(nearly) bit-identical for everyone}}};
+  \end{tikzpicture}
+
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixblue2}
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+$ \alert{guix challenge} --substitute-urls="https://ci.guix.gnu.org 
https://example.org";
+\alert{/gnu/store/\dots{}-openssl-1.0.2d contents differ}:
+  local hash: 0725l22\dots{}
+  http://ci.guix.gnu.org/\dots{}-openssl-1.0.2d: 0725l22\dots{}
+  http://example.org/\dots{}-openssl-1.0.2d: 1zy4fma\dots{}
+\alert{/gnu/store/\dots{}-git-2.5.0 contents differ}:
+  local hash: 00p3bmr\dots{}
+  http://ci.guix.gnu.org/\dots{}-git-2.5.0: 069nb85\dots{}
+  http://example.org/\dots{}-git-2.5.0: 0mdqa9w\dots{}
+\alert{/gnu/store/\dots{}-pius-2.1.1 contents differ}:
+  local hash: 0k4v3m9\dots{}
+  http://ci.guix.gnu.org/\dots{}-pius-2.1.1: 0k4v3m9\dots{}
+  http://example.org/\dots{}-pius-2.1.1: 1cy25x1\dots{}
+  \end{semiverbatim}
+\end{frame}
+\setbeamercolor{normal text}{bg=black}
+
+% demo guix build foo --check | guix challenge
+
+\setbeamercolor{normal text}{fg=black,bg=white}
+\begin{frame}[fragile]
+  \vspace{2.5cm}
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt,
+    drop shadow={opacity=0.5}, draw, color=guixgrey, line width=1pt]
+    
{\includegraphics[height=0.9\paperheight]{images/reflections-on-trusting-trust}};
+  \end{tikzpicture}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\setbeamercolor{normal text}{bg=white}
+\screenshot[width=.8\paperwidth]{images/bootstrappable}
+\setbeamercolor{normal text}{bg=black}
+
+\setbeamercolor{normal text}{bg=white}
+\begin{frame}[plain]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+      {\includegraphics[height=\paperheight]{images/bootstrap-graph}};
+    \node<2-> [at=(current page.center), anchor=north, inner sep=20pt, 
text=guixgrey]
+      {\Large{\textbf{250 MiB of binary blobs}}};
+  \end{tikzpicture}
+\end{frame}
+\begin{frame}[plain]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt]
+      {\includegraphics[height=\paperheight]{images/bootstrap-graph-reduced}};
+    \node<2-> [at=(current page.center), fill=guixorange1, rounded 
corners=10pt,
+               inner sep=10pt, opacity=.8, text opacity=1]
+      {\Large{\textbf{250 MiB $\rightarrow$ 130 MiB of binary blobs}}};
+    \node<2-> [at=(current page.south), anchor=south,
+               inner sep=2mm, outer sep=3mm, rounded corners,
+               fill=white, opacity=.7, text opacity=1, text=black]
+      
{\url{https://guix.gnu.org/blog/2019/guix-reduces-bootstrap-seed-by-50/}};
+    \node<2-> [at=(current page.north east), anchor=north east,
+               fill=white, text=guixdarkgrey, draw=guixblue1,
+               rounded corners=10pt, %text width=5cm,
+               inner sep=10pt, outer sep=3mm, text opacity=1]
+      {\large{\textbf{Go to AW1.125, Sun.~11:50AM}}};
+  \end{tikzpicture}
+\end{frame}
+
+\begin{frame}[plain]
+  \begin{tikzpicture}[remember picture, overlay]
+    \node [at=(current page.center), inner sep=0pt, rotate=30]
+      {\includegraphics[height=1.1\paperheight]{images/rust-bootstrap}};
+    %% \node<2-> [at=(current page.center), fill=guixorange1, rounded 
corners=10pt,
+    %%            inner sep=10pt, opacity=.8, text opacity=1]
+    %%   {\Large{\textbf{Thumbs up, Danny Milosavljevic!}}};
+    \node<1> [at=(current page.center), fill=guixorange1, rounded corners=10pt,
+               inner sep=10pt, opacity=.8, text opacity=1]
+      {\Large{\textbf{Rust entirely built from source!}}};
+    \node<1> [at=(current page.south), anchor=south,
+               inner sep=2mm, outer sep=3mm, rounded corners, fill=white,
+               opacity=.7, text opacity=1, text=black]
+      {\url{https://guix.gnu.org/blog/2018/bootstrapping-rust/}};
+    \node<1-> [at=(current page.north east), anchor=north east,
+               fill=white, text=guixdarkgrey, draw=guixblue1,
+               rounded corners=10pt, %text width=5cm,
+               inner sep=10pt, outer sep=3mm, text opacity=1]
+      {\large{\textbf{Go to K.3.401, Sun.~10:00AM}}};
+  \end{tikzpicture}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+%% \setbeamercolor{normal text}{bg=white}
+%% \begin{frame}[plain]
+%%   \begin{tikzpicture}[remember picture, overlay]
+%%     \node [at=(current page.center), fill=guixblue1,
+%%       shape=circle, inner sep=2.2cm, opacity=.8, text opacity=1] {};
+%%     \node [at=(current page.center), fill=guixorange1, rounded corners=10pt,
+%%       shape=circle, inner sep=2cm, opacity=1, text opacity=1] {};
+%%     \node [at=(current page.center), fill=guixorange1, rounded corners=10pt,
+%%       shape=circle, inner sep=10pt, opacity=0, text opacity=1]
+%%       {\Huge{\textbf{1.0!}}};
+
+%%   \end{tikzpicture}
+%% \end{frame}
+%% \setbeamercolor{normal text}{fg=white,bg=black}
+
+\setbeamercolor{normal text}{bg=guixtaupe}
+\begin{frame}[fragile]
+  \Huge{$f(\texttt{config.scm}) = 
\vcenter{\hbox{\includegraphics[width=20mm]{images/emblem-system-symbolic}}}$}
+
+  \begin{tikzpicture}[remember picture, overlay]
+    \node<2-> [at=(current page.center), shape=circle, inner sep=1cm,
+               fill=white, text=black, opacity=.75, text opacity=.9] {
+      \Huge{$f^{-1}$}~?
+    };
+  \end{tikzpicture}
+\end{frame}
+
+\begin{frame}[fragile]
+  \begin{semiverbatim}
+    \Large{
+\$ guix system \alert{describe}
+  file name: /var/guix/profiles/system-126-link
+  canonical file name: /gnu/store/\textsf{\dots{}}-system
+  label: GNU with Linux-Libre 5.4.15
+  bootloader: grub-efi
+  root device: label: "root"
+  \alert{channels}:
+    guix:
+      repository URL: https://git.savannah.gnu.org/\textsf{\dots{}}
+      commit: 93f4511eb0c9b33f5083c2a04f4148e0a494059c
+  \alert{configuration file}: /gnu/store/\textsf{\dots{}}-configuration.scm
+    }
+  \end{semiverbatim}
+
+  \begin{tikzpicture}[overlay]
+    \node at (14,6) [anchor=east,
+           inner sep=1mm, rotate=-30, shape=star,
+           fill=guixorange1, text=white] {
+      \Large{\textbf{New!}}
+    };
+  \end{tikzpicture}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixblue1}
+\begin{frame}
+  \Huge{\textbf{Wrap-up.}}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\setbeamercolor{normal text}{fg=white,bg=guixdarkgrey}
+\begin{frame}[fragile]
+  \LARGE{
+  Not included in this talk :-)
+  \\[1cm]
+
+  \begin{itemize}
+  \item{ \textbf{embedded} usage
+    \begin{itemize}
+    \item Go to K.3.201, Sun. 11:00AM!
+    \end{itemize} }
+  \item { \textbf{Guile} \& programming language technology
+    \begin{itemize}
+    \item Go to AW1.125, Sun. 11:30AM!
+    \end{itemize} }
+  \item{ \textbf{Guix-HPC}: high-performance computing
+    \begin{itemize}
+    \item Go to UB.132, Sun. 12:30PM!
+    \end{itemize}}
+  \end{itemize}
+  }
+\end{frame}
+
+\begin{frame}[fragile]
+  \Huge{\textbf{Join us now, share the parens!}}
+  \vspace{0.7cm}
+  \Large{
+    \begin{itemize}
+    \item \textbf{install it!}
+    \item \textbf{use it!}
+    \item \textbf{hack it!}
+    \item \textbf{join} for Outreachy or GSoC!
+    \end{itemize}
+  }
+\end{frame}
+
+\setbeamercolor{normal text}{bg=white}
+\screenshot{images/guix-scope}
+
+
+\setbeamercolor{normal text}{bg=white}
+\begin{frame}[fragile]
+  \vspace{-2cm}
+  \begin{tikzpicture}
+    \matrix[row sep=10mm, column sep=1cm]{
+      % https://git-scm.com/downloads/logos
+      \node {\includegraphics[width=0.2\textwidth]{images/Git-Logo-2Color}}; &
+      \node {\includegraphics[width=0.15\textwidth]{images/arrow-right}}; &
+      \node 
{\includegraphics[width=0.24\textwidth]{images/Guix-horizontal-print}};
+      \\
+    };
+  \end{tikzpicture}
+
+  \begin{tikzpicture}[overlay]
+    \node [at=(current page.center), anchor=north,
+           text=black, text width=.9\textwidth]{
+      \Huge{\textbf{Reproducible deployment}\\ is
+        the logical next step. \par
+      }};
+  \end{tikzpicture}
+\end{frame}
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\setbeamercolor{normal text}{bg=black}
+\begin{frame}[plain]
+
+\vfill{
+  \vspace{1.5cm}
+  \center{\includegraphics[width=0.3\textwidth]{images/Guix-white}}\\[1.0cm]
+  \texttt{address@hidden}\hfill{\alert{\url{https://guix.gnu.org/}}}
+}
+
+\end{frame}
+
+\begin{frame}{}
+
+  \begin{textblock}{12}(2, 3)
+    \tiny{
+      Copyright \copyright{} 2010, 2012--2020 Ludovic Courtès 
\texttt{address@hidden}.\\[3.0mm]
+      GNU Guix logo, CC-BY-SA 4.0, \url{https://gnu.org/s/guix/graphics} \\
+      Reproducible Builds logo under CC-BY 3.0,
+      
\url{https://uracreative.github.io/reproducible-builds-styleguide/visuals/}. \\
+      Bootstrappable Builds logo by Ricardo Wurmus,
+      \url{https://bootstrappable.org}. \\
+      Docker whale image by Ricardo Wurmus. \\
+      Smoothie image \copyright{} 2019 Ricardo Wurmus, CC-BY-SA 4.0. \\
+      Hand-drawn arrows by Freepik from flaticon.com.
+      \\[1.5mm]
+      Picture of the sun under CC-BY-SA 3.0,
+      \url{https://commons.wikimedia.org/wiki/File:\%22Sun\%22.JPG}. \\
+      Cloud picture 1 under CC-BY-SA 2.0,
+      \url{https://commons.wikimedia.org/wiki/File:Cloud_(5018750171).jpg}. \\
+      Cloud picture 2 under CC-BY-SA 3.0,
+      \url{https://commons.wikimedia.org/wiki/File:Cumulunimbus_IMG_5537.JPG}. 
\\
+      Cloud picture 3 under CC-BY-SA 4.0,
+      
\url{https://commons.wikimedia.org/wiki/File:2018-05-18_18_27_24_Low_stratiform_clouds_(base_near_3,000_feet_AGL)_with_wavy,_bumpy_base_viewed_from_Mercer_County_Route_622_(North_Olden_Avenue)_in_Ewing_Township,_Mercer_County,_New_Jersey.jpg}.
 \\
+      Thunder picture under CC-BY-SA 4.0,
+      
\url{https://commons.wikimedia.org/wiki/File:004_2018_05_14_Extremes_Wetter.jpg}.
+      \\[1.5mm]
+      Copyright of other images included in this document is held by
+      their respective owners.
+      \\[3.0mm]
+      This work is licensed under the \alert{Creative Commons
+        Attribution-Share Alike 3.0} License.  To view a copy of this
+      license, visit
+      \url{http://creativecommons.org/licenses/by-sa/3.0/} or send a
+      letter to Creative Commons, 171 Second Street, Suite 300, San
+      Francisco, California, 94105, USA.
+      \\[2.0mm]
+      At your option, you may instead copy, distribute and/or modify
+      this document under the terms of the \alert{GNU Free Documentation
+        License, Version 1.3 or any later version} published by the Free
+      Software Foundation; with no Invariant Sections, no Front-Cover
+      Texts, and no Back-Cover Texts.  A copy of the license is
+      available at \url{http://www.gnu.org/licenses/gfdl.html}.
+      \\[2.0mm]
+      % Give a link to the 'Transparent Copy', as per Section 3 of the GFDL.
+      The source of this document is available from
+      \url{http://git.sv.gnu.org/cgit/guix/maintenance.git}.
+    }
+  \end{textblock}
+\end{frame}
+
+\end{document}
+
+% Local Variables:
+% coding: utf-8
+% comment-start: "%"
+% comment-end: ""
+% ispell-local-dictionary: "american"
+% compile-command: "rubber --pdf talk.tex"
+% End:



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