nixfiles

My NixOS configurations and other Nix files ❄️

Overview

• flake.nix: Flakes for each configuration, outputs for libs/modules/packages, and a dev shell for working with secrets.
• modules/: Custom NixOS modules; see the mixins section
• hosts/: Configuration for each of my NixOS machines
• hm-modules/: Custom home-manager modules
• darwin-modules/: Custom nix-darwin modules
• pkgs/: Custom-built derivations exported from flake
• installer/: Minimal custom installer configuration using nixos-generators; see the installer section
• overlays/: Nixpkgs overlays for overriding or adding packages
• templates/: Various templates that can be used with the nix flake init/new subcommands

Hosts

• hecate: Main laptop
• caspar: M1 Mac

Mixins

Most of the code for building configurations is split into mixins, which are NixOS modules that configure part of a system according to my preferences. Mixins can be mixed-and-matched and composed together to create the base config for a specific system.

• base/: The common base of all of my systems, with essential packages, services, and settings
• desktop/: Different mixins for creating a development workstation on a (usually graphical) computer
  • desktop/x: Mixins for display managers, window managers, and desktop environments
• users/: Per-user system user settings and home-manager configurations

installer

installer/ contains a custom installer configuration, built with nixos-generators. The justfile contains a recipe for building installers:

# x86_64-linux installer iso
$ just build-nixos-installer x86_64-linux ./installer/configuration.nix

# aarch64-linux installer sd image (requires 'boot.binfmt.emulatedSystems = [ "aarch64-linux" ];')
$ just build-nixos-installer aarch64-linux ./installer/configuration.nix

Manual setup

Some things cannot be set up automatically, especially some of the Catppuccin theming. Here are some things that may need to be done manually:

• BetterDiscord installation: run betterdiscordctl install
• Obsidian theming: follow the instructions here
• Browser stuff:
  • Userchrome stuff (~/.mozilla/firefox/<profile>/chrome/userChrome.css):
    • Hide tab bar: #tabbrowser-tabs { visibility: collapse !important; }
    • Hide TST bar: #TabsToolbar { visibility: collapse !important; } #sidebar-header { display: none; }
  • Firefox extensions:
    • Themes:
      • catppuccin-mocha-lavender
    • Extensions:
      • Privacy:
        • uBlock Origin
        • FoxyProxy
      • Integrations:
        • Bitwarden
      • Interface/navigation:
        • Vim Vixen
      • Workflow:
        • Tab session manager
        • Tree style tab
          • TST Indent Line
          • TST Lock tree collapsed
          • TST Tab Drag Handle
          • TST-MiddleClick
          • Move unloaded tabs for Tree Style Tab
          • Bookmark Tree for Tree Style Tab
      • Site enhancements:
        • Stylus
          • Catppuccin for GitHub
          • Youtube-Catppuccin Mocha
          • Catppuccin for DDG
        • YouTube Windowed FullScreen
      • Misc:
        • Tabby cat
• Wallpapers: https://github.com/catppuccin/wallpapers
  • Update wallpaper with betterlockscreen -u ... and betterlockscreen -w