71 lines
1.8 KiB
Nix
71 lines
1.8 KiB
Nix
{ config, inputs, lib, pkgs, ... }:
|
|
let
|
|
# Adapted from https://nixos.wiki/wiki/Overlays
|
|
overlaysCompat = pkgs.writeTextFile {
|
|
name = "overlays-compat";
|
|
destination = "/overlays.nix";
|
|
text = /* nix */ ''
|
|
self: super:
|
|
with super.lib;
|
|
let
|
|
# Load the system config and get the `nixpkgs.overlays` option
|
|
# This fails gracefully if getFlake is not available
|
|
overlays = if builtins.hasAttr "getFlake" builtins
|
|
then (builtins.getFlake "/var/src/config").nixosConfigurations.${config.networking.hostName}.config.nixpkgs.overlays
|
|
else [ ];
|
|
in
|
|
# Apply all overlays to the input of the current "main" overlay
|
|
foldl' (flip extends) (_: super) overlays self
|
|
'';
|
|
};
|
|
in
|
|
{
|
|
nix = {
|
|
# nix with flake support
|
|
package = pkgs.nixFlakes;
|
|
|
|
registry = with inputs; {
|
|
nixpkgs.flake = nixpkgs;
|
|
nixpkgs-unstable.flake = nixpkgs-unstable;
|
|
};
|
|
|
|
nixPath = [
|
|
"nixpkgs=${inputs.nixpkgs}"
|
|
"nixpkgs-overlays=${overlaysCompat}"
|
|
];
|
|
# Make sudoers trusted nix users
|
|
trustedUsers = [ "@wheel" ];
|
|
|
|
# On-the-fly optimisation of nix store
|
|
autoOptimiseStore = true;
|
|
extraOptions = ''
|
|
experimental-features = nix-command flakes
|
|
'' + lib.optionalString config.sbruder.full ''
|
|
# Keep output of derivations with gc root
|
|
keep-outputs = true
|
|
keep-derivations = true
|
|
'';
|
|
|
|
# Make nix build in background less noticeable
|
|
daemonCPUSchedPolicy = "batch";
|
|
daemonIOSchedPriority = 5; # 0-7
|
|
};
|
|
|
|
nixpkgs.overlays = with inputs; [
|
|
self.overlay
|
|
nixpkgs-overlay.overlay
|
|
(final: prev: {
|
|
unstable = import nixpkgs-unstable {
|
|
inherit (config.nixpkgs)
|
|
config
|
|
overlays
|
|
system;
|
|
};
|
|
})
|
|
];
|
|
|
|
environment.systemPackages = with pkgs; [
|
|
cached-nix-shell
|
|
];
|
|
}
|