alexion
826e4a18dc
Select the CachyOS kernel per-Host via boot.kernelPackages, enable Intel microcode and redistributable firmware (ath10k for the QCA6174 wifi), and move zram behind a toggle Module. Declare the chaotic binary cache in the base Nix settings (extra-substituters/keys) so the built system fetches the kernel from nyx-cache rather than compiling it.
93 lines
3.0 KiB
Nix
93 lines
3.0 KiB
Nix
{
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config,
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lib,
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pkgs,
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inputs,
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...
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}:
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# The Skeleton's shared base config: the pieces every Host carries regardless of
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# which Modules it enables — overlays, the `user`, flakes, and home-manager.
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let
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inherit (lib) mkOption types;
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user = config.user;
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# Instantiate an extra nixpkgs source for the same platform as the base pkgs.
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pinArgs = prev: {
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inherit (prev.stdenv.hostPlatform) system;
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config.allowUnfree = true;
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};
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in
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{
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options.user = {
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name = mkOption {
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type = types.str;
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default = "alexion";
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description = ''
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The primary interactive user this Host is built for. Drives both the
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system account and the home-manager user in lockstep.
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'';
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};
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description = mkOption {
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type = types.str;
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default = "Alexion";
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description = "Human-readable description (GECOS field) for the primary user.";
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};
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};
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config = {
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# Base is nixos-unstable; reach a package fresher with `unstable.<name>` or
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# pin it rock-solid with `stable.<name>`. chaotic's overlay is added by its
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# own NixOS module, imported by the host-builder.
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nixpkgs.overlays = [
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(_final: prev: {
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unstable = import inputs.nixpkgs-unstable (pinArgs prev);
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stable = import inputs.nixpkgs-stable (pinArgs prev);
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})
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];
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nixpkgs.config.allowUnfree = true;
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# Flakes + a baseline so `nixos-rebuild switch` works from the console.
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nix.settings.experimental-features = [
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"nix-command"
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"flakes"
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];
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# The chaotic binary cache, declared explicitly on the built system so the
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# CachyOS kernel is substituted rather than compiled. chaotic's own module
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# also provides these, but stating them here keeps the built system's cache
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# config visible and independent of that module. Added via the `extra-`
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# options so they only append — cache.nixos.org and any other substituter
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# are never dropped. (Fetching at install time depends on the installing
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# daemon's substituters, not this — see the chaotic gotcha in CLAUDE.md.)
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nix.settings.extra-substituters = [ "https://nyx-cache.chaotic.cx/" ];
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nix.settings.extra-trusted-public-keys = [
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"nyx-cache.chaotic.cx:dJxTrgMC3V3cFfyIiBQDQorG6k1LsqurH/srpMSq7qk="
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];
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environment.systemPackages = [ pkgs.git ];
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# Primary user, in wheel. No password is set here.
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users.users.${user.name} = {
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isNormalUser = true;
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description = user.description;
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extraGroups = [ "wheel" ];
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};
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# home-manager as a NixOS module: one `nixos-rebuild switch` builds the
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# system and the user environment atomically, sharing the system's pkgs
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# (with our overlays) and installing user packages into the system profile.
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home-manager = {
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useGlobalPkgs = true;
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useUserPackages = true;
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extraSpecialArgs = {
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inherit inputs;
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my = inputs.self.lib;
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};
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users.${user.name} = {
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home.username = user.name;
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home.homeDirectory = "/home/${user.name}";
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home.stateVersion = "26.05";
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};
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};
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};
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}
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