CodeClub NixOS LiveCD/USB

A Nix based live CD/USB drive for use in CodeClub sessions. The windows installs on the PCs are locked down - no headphone support. Also on a timer.
The live CD means that those things are working.

Steps

• follow NixOS Live CD link below to create the ISO
• remember to switch to using the graphical gnome template.
• copy generated ISO to your USB using this command:
• $ sudo dd bs=4M if={path to generated ISO} of=/dev/sd{flash drive} status=progress oflag=sync

Test locally in a VM

• $ nixos-rebuild build-vm -I nixos-config=./iso.nix
• $ ./result/bin/run-nixos-vm

Useful links

• LiveCD how to - https://nixos.wiki/wiki/Creating_a_NixOS_live_CD
• Live CD variations - https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/installer/cd-dvd/installation-cd-graphical-gnome.nix
• packages - https://search.nixos.org/

TODO

• focus gnome on chrome app, not in overview view (or whatever its called)
• add in the max/min top right window buttons
• add printer support
• resolution ok - test on CC PCs? seems ok
• startup sound on boot? Nice to have, might be annoying...
• system monitor not starting on boot
• pin gnome-system-monitor - tried but not working
• no wifi on mac, not issue for CC, just me.

DONE

• python
• add other browsers - opera, edge
• disable gnome tour
• install nmap for investigations
• chrome installed/pinned
• set timezone. Europe London not utc
• wrong keymap: " (quote), hash and @ sign in wrong places - maybe just a mac issue? SEEMS fixed, checkin keymap changes.
• turn off auto suspend
• make pinned work same as autostart one. use same desktop file
• skip chrome intro, max window, etc, start on boot, open scratch page and maybe others - done, I think
  • https://discourse.nixos.org/t/automatic-program-start-up-on-login-with-xorg/34261/2
  • https://www.reddit.com/r/NixOS/comments/rezf0s/how_to_run_script_on_startup/
• browser home pages. scratch, CC projects etc. public start me page? https://bit.ly/codeclubnxl (eg xdg-open) or use github/jekyll pages

Jekyll site/notes

• bundle exec jekyll serve --baseurl="" --livereload
• bundle info --path jekyll-theme-minimal
• https://tomcam.github.io/least-github-pages/adding-assets-directory-github-pages.html
• https://docs.github.com/en/pages
• analog clock - https://codepen.io/vaskopetrov/pen/yVEXjz