fix avahi

packages/python/python-steam/default.nix

@@ -1,14 +1,26 @@
-{ python3Packages, fetchPypi, ... }:
+{
+  lib,
+  namespace,
+  pkgs,
+  python3Packages,
+  ...
+}:
+let
+  inherit (lib.trivial) importJSON;
+  inherit (lib.${namespace}) selectVariant mkAllSources;
 
-python3Packages.buildPythonPackage rec {
+  versionSpec = importJSON ./version.json;
+  selected = selectVariant versionSpec null null;
+  sources = mkAllSources pkgs selected;
+  src-meta = selected.sources."python-steam";
+  version = selected.variables.version;
+in
+python3Packages.buildPythonPackage {
   pname = "steam";
-  version = "1.4.4";
+  inherit version;
   pyproject = false;
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "sha256-K1vWkRwNSnMS9EG40WK52NR8i+u478bIhnOTsDI/pS4=";
-  };
+  src = sources."python-steam";
 
   buildInputs = with python3Packages; [ setuptools ];
 

packages/python/python-steam/version.json

@@ -0,0 +1,13 @@
+{
+  "schemaVersion": 1,
+  "variables": {
+    "version": "1.4.4"
+  },
+  "sources": {
+    "python-steam": {
+      "fetcher": "pypi",
+      "name": "steam",
+      "hash": "sha256-K1vWkRwNSnMS9EG40WK52NR8i+u478bIhnOTsDI/pS4="
+    }
+  }
+}