niksos/hosts/common/core/binary-caches.nix

_: {
    nix.settings = {
        substituters = [
            "https://nix-community.cachix.org"
        ];
        trusted-public-keys = [
            "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
        ];
    };
}