update: fixed issues and update flake inputs

home/options/sunsetr.nix

@@ -0,0 +1,32 @@
+{ config, lib, ... }:
+let
+  inherit (lib)
+    mkIf
+    mkEnableOption
+    mkPackageOption
+    getExe'
+    ;
+  cfg = config.services.sunsetr;
+in
+{
+  options.services.sunsetr = {
+    enable = mkEnableOption "Enable sunsetr.";
+    package = mkPackageOption "sunsetr";
+  };
+
+  config = mkIf cfg.enable {
+    systemd.user.services.sunsetr = {
+      Install = {
+        WantedBy = [ "graphical-session.target" ];
+      };
+      Unit = {
+        Description = "Blue light filter";
+      };
+      Service = {
+        ExecStart = "${getExe' cfg.package "sunsetr"}";
+        Restart = "always";
+        RestartSec = 2;
+      };
+    };
+  };
+}