dotfiles/modules/nixos/nix/default.nix
2024-05-03 20:07:23 -07:00

70 lines
1.6 KiB
Nix

{
options,
config,
pkgs,
lib,
...
}:
with lib; let
cfg = config.aa.nix;
selfHostedCacheHost = "https://cache.kilonull.com/";
in {
options.aa.nix = with types; {
enable = mkEnableOption "manage nix configuration.";
package = mkOption {
type = package;
default = pkgs.nixVersions.git;
description = "Which nix package to use.";
};
useSelfhostedCache = mkEnableOption "use self-hosted nix cache (currently hosted on gospel)";
};
config = mkIf cfg.enable {
environment.systemPackages = with pkgs; [
alejandra
nix-prefetch
];
nix = let
users = ["root" config.aa.user.name];
in {
package = cfg.package;
settings = {
experimental-features = "nix-command flakes";
trusted-users = users;
allowed-users = users;
builders-use-substitutes = cfg.useSelfhostedCache;
substituters =
if cfg.useSelfhostedCache
then [
# TESTING
"https://minio.kilonull.com/nix-store"
selfHostedCacheHost
]
else [];
trusted-public-keys =
if cfg.useSelfhostedCache
then ["gospelCache:9cbn8Wm54BbwpPS0TXw+15wrYZBpfOJt4Fzfbfcq/pc="]
else [];
};
# TODO: Configure distributedBuilds and buildMachines?
gc = {
automatic = true;
dates = "weekly";
options = "--delete-older-than 30d";
};
# TODO: Not sure if I want this
# flake-utils-plus
# generateRegistryFromInputs = true;
# generateNixPathFromInputs = true;
# linkInputs = true;
};
};
}