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nix-config-tn/nixos/profiles/global/nix.nix
jahanson ca25688c2c
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Mixing things around
2024-05-30 21:33:06 -05:00

47 lines
1.7 KiB
Nix

{ lib, nixpkgs, ... }:
{
## Below is to align shell/system to flake's nixpkgs
## ref: https://nixos-and-flakes.thiscute.world/best-practices/nix-path-and-flake-registry
# Make `nix repl '<nixpkgs>'` use the same nixpkgs as the one used by this flake.
environment.etc."nix/inputs/nixpkgs".source = "${nixpkgs}";
nix = {
# make `nix run nixpkgs#nixpkgs` use the same nixpkgs as the one used by this flake.
registry.nixpkgs.flake = nixpkgs;
channel.enable = false; # remove nix-channel related tools & configs, we use flakes instead.
# but NIX_PATH is still used by many useful tools, so we set it to the same value as the one used by this flake.
# https://github.com/NixOS/nix/issues/9574
settings.nix-path = lib.mkForce "nixpkgs=/etc/nix/inputs/nixpkgs";
settings = {
# Enable flakes
experimental-features = [
"nix-command"
"flakes"
];
# Substitutions
substituters = [
"https://hsndev.cachix.org"
"https://nix-community.cachix.org"
"https://numtide.cachix.org"
];
trusted-public-keys = [
"hsndev.cachix.org-1:vN1/XGBZtMLnTFYDmTLDrullgZHSUYY3Kqt+Yg/C+tE="
"nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
"numtide.cachix.org-1:2ps1kLBUWjxIneOy1Ik6cQjb41X0iXVXeHigGmycPPE="
];
# Fallback quickly if substituters are not available.
connect-timeout = 25;
# Avoid copying unnecessary stuff over SSH
builders-use-substitutes = true;
trusted-users = [ "root" "@wheel" ];
warn-dirty = false;
# The default at 10 is rarely enough.
log-lines = lib.mkDefault 25;
};
};
}