inputs: { options.nixos.system.envfs = let inherit (inputs.lib) mkOption types; in mkOption { type = types.nullOr (types.submodule {}); default = {}; }; config = let inherit (inputs.config.nixos.system) envfs; in inputs.lib.mkIf (envfs != null) { services.envfs.enable = true; environment.variables.ENVFS_RESOLVE_ALWAYS = "1"; }; }