Add a module for creating rclone services

lib/modules/rclone.nix

@@ -0,0 +1,54 @@
+{ config, lib, pkgs, ... }: {
+  options = {
+    programs.rclone = {
+      enable = lib.mkEnableOption "rclone";
+    };
+  };
+
+  config =
+    let
+      cfg = config.programs.rclone;
+    in {
+      home.packages = lib.optional cfg.enable pkgs.rclone;
+
+      systemd.user = lib.optionalAttrs cfg.enable {
+        enable = true;
+
+        services.rclone = {
+          Unit = {
+            Description = "rclone Starter";
+            Documentation = "man:rclone(1)";
+          };
+
+          Service = {
+            Type = "simple";
+
+            ExecStartPre =
+              let
+                scriptName = "rclone-pre";
+                script = pkgs.writeShellScriptBin scriptName ''
+                  sleep 10
+                '';
+              in
+                "${script}/bin/${scriptName}";
+
+            ExecStart =
+              let
+                scriptName = "rclone";
+                script = pkgs.writeShellScriptBin scriptName ''
+                  systemctl --user start rclone.target
+                '';
+              in
+                "${script}/bin/${scriptName}";
+          };
+        };
+
+        targets.rclone = {
+          Unit = {
+            Description = "rclone Mounts";
+            Documentation = "man:rclone(1)";
+          };
+        };
+      };
+    };
+}