Fix & Update versions

overlays/default.nix

@@ -5,7 +5,7 @@
     yarn-berry = import ./yarn-berry { inherit final prev; };
     eww = import ./eww { inherit final prev; };
     wine = final.unstable.wineWow64Packages.unstableFull;
-    unstable = import inputs.nixMaster {
+    unstable = import inputs.nixUnstable {
       system = final.system;
       config.allowUnfree = true;
     };