62 lines
2.4 KiB
Markdown
62 lines
2.4 KiB
Markdown
# NixOS configuration
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The default package set is NixOS 26.05. Home Manager and AAGL use their
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matching 26.05 release branches. `drivebystation-nix` uses the standard
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`pkgs.linuxPackages` kernel from stable, including matching external modules.
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## Packages from unstable
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`inputs.nixpkgs-unstable` is a separate package set, pinned in `flake.lock`.
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Select individual applications explicitly, as with Trilium and JetBrains
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Toolbox in the desktop host:
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```nix
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unstablePkgs.trilium-desktop
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```
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The host defines `unstablePkgs` by importing the separate input with
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`allowUnfree = true`. Use `pkgs.<name>` for stable packages. Unstable
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applications retain their own dependencies; the system package set stays on
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stable.
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Update the stable inputs and the application exceptions independently:
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```sh
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nix flake update nixpkgs home-manager aagl
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nix flake update nixpkgs-unstable
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```
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The existing Mutter tearing override remains experimental. Its compatibility
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and B580 graphics behavior require testing when changing the desktop stack.
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## Validate and boot
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```sh
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nix build .#nixosConfigurations.drivebystation-nix.config.system.build.toplevel --no-link
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sudo nixos-rebuild boot --flake .#drivebystation-nix
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```
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Only run the boot command after the build succeeds. Keep the previous working
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generation available in the boot menu, then test networking, graphics, and
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the webcam loopback after reboot. Git restores configuration sources; booting
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the previous generation restores the previous system closure.
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Whole-flake checks currently also evaluate an unfinished WSL host referencing
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the disabled `nixos-wsl` input. Validate the desktop target directly until that
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separate host configuration is repaired.
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## Migration validation (2026-10-17)
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The complete `drivebystation-nix` system built successfully without activation.
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Its closure contains Linux 6.18.56, patched Mutter 50.5, GNOME Shell 50.5,
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libdrm 2.4.133, r8125 9.016.01, and v4l2loopback 0.15.3. The explicit unstable
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applications are Trilium 0.106.0 and JetBrains Toolbox 3.8.1.88030.
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Nix syntax and Git whitespace checks pass. `nix flake check --no-build` stops
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at the existing WSL input error described above. The edited Nix files retain
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the repository's existing formatting; `nixpkgs-fmt --check` reports formatting
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differences, including on the original flake before migration.
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Boot, networking, B580 graphics, and tearing behavior still require runtime
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testing. The migration does not add Intel tearing kernel patches.
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