bundlerUpdateScript: init and use (#64822)

pkgs/tools/text/reckon/default.nix

@@ -1,8 +1,8 @@
-{ stdenv, lib, bundlerEnv, makeWrapper }:
+{ stdenv, lib, bundlerEnv, bundlerUpdateScript, makeWrapper }:
 
 stdenv.mkDerivation rec {
   name = "reckon-${version}";
-  version = "0.4.4";
+  version = (import ./gemset.nix).reckon.version;
 
   env = bundlerEnv {
     name = "${name}-gems";
@@ -19,9 +19,12 @@ stdenv.mkDerivation rec {
     makeWrapper ${env}/bin/reckon $out/bin/reckon
   '';
 
+  passthru.updateScript = bundlerUpdateScript "reckon";
+
   meta = with lib; {
     description = "Flexibly import bank account CSV files into Ledger for command line accounting";
     license = licenses.mit;
+    maintainers = with maintainers; [ nicknovitski ];
     platforms = platforms.unix;
   };
 }