95 lines
2.8 KiB
Nix
95 lines
2.8 KiB
Nix
{
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config,
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lib,
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pkgs,
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modulesPath,
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...
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}:
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let
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# can be dropped after 23.11 is removed
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hasPerlless = builtins.pathExists "${modulesPath}/profiles/perlless.nix";
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in
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{
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# more descriptive hostname than just "nixos"
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networking.hostName = lib.mkDefault "nixos-installer";
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# We are stateless, so just default to latest.
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system.stateVersion = config.system.nixos.version;
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# use latest kernel we can support to get more hardware support
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boot.kernelPackages =
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lib.mkDefault
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(pkgs.zfs.override { removeLinuxDRM = pkgs.hostPlatform.isAarch64; }).latestCompatibleLinuxPackages;
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boot.zfs.removeLinuxDRM = lib.mkDefault pkgs.hostPlatform.isAarch64;
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documentation.enable = false;
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documentation.man.man-db.enable = false;
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# reduce closure size through package set crafting
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# where there's no otherwise globally effective
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# config setting available
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# TODO: some are candidates for a long-term upstream solution
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nixpkgs.overlays = [
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(final: prev: {
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# save ~12MB by not bundling manpages
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coreutils-full = prev.coreutils;
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# save ~20MB by making them minimal
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util-linux = prev.util-linux.override {
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nlsSupport = false;
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ncursesSupport = false;
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systemdSupport = false;
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translateManpages = false;
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};
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# save ~6MB by removing one bash
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bashInteractive = prev.bash;
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# saves ~25MB
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systemd = prev.systemd.override {
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pname = "systemd-slim";
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withDocumentation = false;
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withCoredump = false;
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withFido2 = false;
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withRepart = false;
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withMachined = false;
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withRemote = false;
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withTpm2Tss = false;
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withLibBPF = false;
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withAudit = false;
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withCompression = false;
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withImportd = false;
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withPortabled = false;
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withSysupdate = false;
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withHomed = false;
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withLocaled = false;
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withPolkit = false;
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# withQrencode = false;
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# withVmspawn = false;
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withPasswordQuality = false;
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};
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})
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];
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systemd.coredump.enable = false;
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environment.systemPackages = [
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# for zapping of disko
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pkgs.jq
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# for copying extra files of nixos-anywhere
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pkgs.rsync
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# for installing nixos via nixos-anywhere
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config.system.build.nixos-enter
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config.system.build.nixos-install
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];
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imports = [
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./nix-settings.nix
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# reduce closure size by removing perl
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] ++ lib.optionals hasPerlless [
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"${modulesPath}/profiles/perlless.nix"
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# We relax the perl check in perlless.nix as not all images are actually perlless
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# and we also want to allow users to install perl if they need it.
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{ system.forbiddenDependenciesRegexes = lib.mkForce []; }
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];
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# Don't add nixpkgs to the image to save space, for our intended use case we don't need it
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system.installer.channel.enable = false;
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}
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