Update libreplanet talk some more.

5 files changed, 133 insertions, 34 deletions

diff --git a/2018-03-25-guix-libreplanet/graph.png b/2018-03-25-guix-libreplanet/graph.png
new file mode 100644
index 0000000..4be0abb
--- /dev/null
+++ b/2018-03-25-guix-libreplanet/graph.png
diff --git a/2018-03-25-guix-libreplanet/guix-libreplanet.org b/2018-03-25-guix-libreplanet/guix-libreplanet.org
index d6958bc..10a4594 100644
--- a/2018-03-25-guix-libreplanet/guix-libreplanet.org
+++ b/2018-03-25-guix-libreplanet/guix-libreplanet.org
@@ -52,7 +52,7 @@
   figuring out how to view the exact source for a running program is
   tricky
 
-  - ??
+  - <explain>
 
 * common issues
 
@@ -71,9 +71,10 @@
 
 * common issues
 
-  trying out new stuff can lead to sadness
+  major system upgrades can lead to sadness
 
-  - ever upgrade your distro, reboot, and get an unusable system?
+  ever upgrade your system, reboot, and find yourself in a completely
+  broken state?
 
 * freedom: embedded
 
@@ -82,37 +83,48 @@
 
 * what is guixsd?
 
-  <logo>
+  \begin{center}
+  \includegraphics{guixsd-logo.png}
+  \end{center}
 
-  fully-free GNU/Linux distribution with an advanced package
-  manager and system upgrade mechanism
+  GuixSD is a fully-free GNU/Linux distribution with an advanced
+  package manager and system upgrade mechanism
 
 * what is guix?
 
-  GuixSD's package manager
+  \begin{center}
+  \includegraphics[width=8cm]{guix-logo.png}
+  \end{center}
 
-  “functional” package manager
+  Guix is GuixSD's package manager (like apt, yum, pacman, etc.)
 
-  atomic updates and rollbacks
+  - unpriviliged package management
+  - per-user profiles
+  - atomic updates and rollbacks
+  - reproducible builds
+  - tools for many use-cases
 
 * unprivileged package management
 
-  Users can build and install software *without root privileges*
+  users can build and install software *without root privileges*
 
   tired: =sudo apt install emacs=
 
   wired: =guix package -i emacs=
 
-* unprivileged package management
+* per-user profiles
 
-  Each user may have one or more “profiles”, a union of many packages.
+  each user may have one or more “profiles”, a union of many packages,
+  *without clobbering another user’s environment*
 
-  Use cases:
+  use cases:
 
   - Alyssa and Ben use different versions of Emacs
   - Alyssa hacks on 2 Ruby projects that require different versions
 
-* experiment without fear
+* transactional upgrades and rollbacks
+
+  experiment without fear!
 
   =guix package --upgrade emacs=
 
@@ -120,29 +132,34 @@
 
   =guix package --roll-back=
 
-* experiment without fear
+* transactional upgrades and rollbacks
 
-  =guix system reconfigure=
+  system upgrades are transactional, too!
+
+  =sudo guix system reconfigure my-machine.scm=
 
   oh no, the latest GuixSD updates broke my system!
 
-  <image of grub menu with older generations?>
+  no worries, just reboot and select the previous, working version
+  from the bootloader menu
 
 * inspecting source code
 
-  quickly grab the source code for a package
-
-  =guix build --source gimp=
-
-* inspecting dependency graph
+  quickly grab the source code for a package:
 
-  =guix graph=
+  #+BEGIN_SRC sh
+    tar xf $(guix build --source gimp)
+  #+END_SRC
 
-  <small dependency graph image>
+* visualizing dependencies
 
-* sharing system configurations
+  #+BEGIN_SRC sh
+    guix graph haunt | dot -Tpng > graph.png
+  #+END_SRC
 
-  <minimal code example here>
+  \begin{center}
+  \includegraphics[width=11cm]{graph.png}
+  \end{center}
 
 * sharing packages
 
@@ -168,6 +185,44 @@
 
   =guix environment --manifest=guix.scm=
 
+* experimenting in isolated environments
+
+  how about a container?
+
+  =guix environment –-container --ad-hoc ruby -- irb=
+
+* sharing system configurations
+
+  #+latex: \tiny{
+  #+BEGIN_SRC scheme
+    (operating-system
+      (host-name "izanagi")
+      (timezone "America/New_York")
+      (locale "en_US.UTF-8")
+      (bootloader (grub-configuration (target "/dev/sda")))
+      (file-systems (cons (file-system
+                            (device "root")
+                            (title 'label)
+                            (mount-point "/")
+                            (type "ext4"))
+                          %base-file-systems))
+      (users (list (user-account
+                    (name "dave")
+                    (comment "David Thompson")
+                    (group "users")
+                    (supplementary-groups '("wheel" "netdev" "audio" "video"
+                                            "cdrom" "kvm" "input" "dialout")
+                    (home-directory "/home/dave"))))
+      (packages (cons* arc-theme arc-icon-theme
+                       htop less man-db ncurses nss-certs openssh unzip rsync
+                       gnome-shell-extensions gnome-tweak-tool
+                       %base-packages))
+      (services (cons* (gnome-desktop-service)
+                       %desktop-services))
+      (name-service-switch %mdns-host-lookup-nss))
+  #+END_SRC
+  #+latex: }
+
 * sharing binaries
 
   start a server to share your builds:
@@ -197,8 +252,8 @@
   this is a *cross-distro effort*, but Guix facilitates
   reproducibility more than others
 
-  see Chris Lamb's talk /You think you're not a target? A tale of
-  three developers.../ from yesterday for more perspective
+  see Chris Lamb's talk /“You think you're not a target? A tale of
+  three developers...”/ from yesterday for more perspective
 
 * reproducible builds
 
@@ -225,7 +280,15 @@
 
 * customize packages
 
-  let's make some changes!
+  build Ruby using different source code:
+
+  #+BEGIN_SRC sh
+    guix build ruby --with-source=ruby-2.5.0.tar.gz
+  #+END_SRC
+
+* customize packages
+
+  let's make some changes to the source code itself!
 
   #+BEGIN_SRC sh
     git clone https://git.savannah.gnu.org/git/guix.git
@@ -233,6 +296,7 @@
     guix environment guix
     ./configure
     make
+    ./pre-inst-env guix edit ruby
     guix build ruby
   #+END_SRC
 
@@ -245,17 +309,52 @@
   \tiny(see /Solving the deployment crisis with GNU Guix/ from
   LibrePlanet 2016 for reasons why Docker may not be so great)
 
-* extending guix
+* interoperate with other systems
 
-  GuixSD is essentially a big Scheme library
+  or maybe you want something like snap or flatpak?
+
+  make a tarball bundle that anyone can extract on their GNU/Linux
+  system:
 
-  easy to write new tools that use the exact same APIs that the core
-  Guix tools use
+  =guix pack guile emacs geiser=
+
+* interoperate with other systems
+
+  or maybe you want assistance translating foreign packages into Guix
+  packages:
+
+  =guix import pypi flask=
 
 * literally: embedded
 
   GuixSD now runs on the Beaglebone Black single-board computer!
 
+  #+latex: \scriptsize{
+  #+BEGIN_SRC scheme
+    (operating-system
+      (bootloader (bootloader-configuration
+                   (bootloader u-boot-beaglebone-black-bootloader)
+                   (target "/dev/mmcblk1")))
+      (initrd-modules (cons "omap_hsmmc" %base-initrd-modules))
+      (services (cons* (dhcp-client-service)
+                       (agetty-service
+                        (agetty-configuration
+                         (extra-options '("-L"))
+                         (baud-rate "115200")
+                         (term "vt100")
+                         (tty "ttyO0")))
+                       %base-services))
+      ...)
+  #+END_SRC
+  #+latex: }
+
+* extending guix
+
+  GuixSD is essentially a big Scheme library
+
+  with a little Scheme know-how its easy to write new tools that use
+  the exact same APIs that the core Guix tools use
+
 * the freedom to contribute
 
   GNU Guix is a welcoming community:
@@ -276,6 +375,6 @@
 
 * credits
 
-  Copyright 2018 David Thompson
+  © 2018 David Thompson
 
   Licensed under Creative Commons Attribution Share-Alike 4.0
diff --git a/2018-03-25-guix-libreplanet/guix-libreplanet.pdf b/2018-03-25-guix-libreplanet/guix-libreplanet.pdf
index 09b3615..d7a49e0 100644
--- a/2018-03-25-guix-libreplanet/guix-libreplanet.pdf
+++ b/2018-03-25-guix-libreplanet/guix-libreplanet.pdf
diff --git a/2018-03-25-guix-libreplanet/guix-logo.png b/2018-03-25-guix-libreplanet/guix-logo.png
new file mode 100644
index 0000000..cadfc65
--- /dev/null
+++ b/2018-03-25-guix-libreplanet/guix-logo.png
diff --git a/2018-03-25-guix-libreplanet/guixsd-logo.png b/2018-03-25-guix-libreplanet/guixsd-logo.png
new file mode 100644
index 0000000..8c4b4ae
--- /dev/null
+++ b/2018-03-25-guix-libreplanet/guixsd-logo.png