pkgs: extract podgrab from 'services/podgrab'

pkgs/default.nix

@@ -1,2 +1,4 @@
 { pkgs }:
-{ }
+{
+  podgrab = pkgs.callPackage ./podgrab { };
+}

pkgs/podgrab/default.nix

@@ -0,0 +1,29 @@
+{ buildGoModule, fetchFromGitHub, lib }:
+
+buildGoModule rec {
+  pname = "podgrab";
+  version = "2021-03-26";
+
+  src = fetchFromGitHub {
+    owner = "akhilrex";
+    repo = "podgrab";
+    rev = "3179a875b8b638fb86d0e829d12a9761c1cd7f90";
+    sha256 = "sha256-vhxIm20ZUi+RusrAsSY54tv/D570/oMO5qLz9dNqgqo=";
+  };
+
+  vendorSha256 = "sha256-xY9xNuJhkWPgtqA/FBVIp7GuWOv+3nrz6l3vaZVLlIE=";
+
+  postInstall = ''
+    mkdir -p $out/share/
+    cp -r "$src/client" "$out/share/"
+    cp -r "$src/webassets" "$out/share/"
+  '';
+
+  meta = with lib; {
+    description = ''
+      A self-hosted podcast manager to download episodes as soon as they become live
+    '';
+    homepage = "https://github.com/akhilrex/podgrab";
+    license = licenses.gpl3;
+  };
+}

services/podgrab.nix

@@ -8,33 +8,7 @@ let
   domain = config.networking.domain;
   podgrabDomain = "podgrab.${domain}";
 
-  podgrabPkg = with pkgs; with stdenv; buildGoModule rec {
-    pname = "podgrab";
-    version = "2021-03-26";
-
-    src = fetchFromGitHub {
-      owner = "akhilrex";
-      repo = "podgrab";
-      rev = "3179a875b8b638fb86d0e829d12a9761c1cd7f90";
-      sha256 = "sha256-vhxIm20ZUi+RusrAsSY54tv/D570/oMO5qLz9dNqgqo=";
-    };
-
-    vendorSha256 = "sha256-xY9xNuJhkWPgtqA/FBVIp7GuWOv+3nrz6l3vaZVLlIE=";
-
-    postInstall = ''
-      mkdir -p $out/share/
-      cp -r "$src/client" "$out/share/"
-      cp -r "$src/webassets" "$out/share/"
-    '';
-
-    meta = with lib; {
-      description = ''
-        A self-hosted podcast manager to download episodes as soon as they become live
-      '';
-      homepage = "https://github.com/akhilrex/podgrab";
-      license = licenses.gpl3;
-    };
-  };
+  podgrabPkg = pkgs.ambroisie.podgrab;
 in
 {
   options.my.services.podgrab = with lib; {