Fixes to ptitgoron, adding cinny and updates

pkgs/cinny/cinny.nix

@@ -0,0 +1,32 @@
+{
+  cinny-unwrapped,
+  jq,
+  stdenvNoCC,
+  writeText,
+  conf ? { },
+}:
+let
+  configOverrides = writeText "cinny-config-overrides.json" (builtins.toJSON conf);
+in
+if (conf == { }) then
+  cinny-unwrapped
+else
+  stdenvNoCC.mkDerivation {
+    pname = "cinny";
+    inherit (cinny-unwrapped) version meta;
+
+    dontUnpack = true;
+
+    nativeBuildInputs = [ jq ];
+
+    installPhase = ''
+      runHook preInstall
+
+      mkdir -p $out
+      ln -s ${cinny-unwrapped}/* $out
+      rm $out/config.json
+      jq -s '.[0] * .[1]' "${cinny-unwrapped}/config.json" "${configOverrides}" > "$out/config.json"
+
+      runHook postInstall
+    '';
+  }