too much rewriting at once... (bad idea)

modules/nix.nix

@@ -0,0 +1,29 @@
+{
+  rs-programs,
+  niri,
+  ...
+}: {
+  nix = {
+    extraOptions = ''
+      experimental-features = nix-command flakes
+      keep-outputs = true
+      keep-derivations = true
+    '';
+    gc = {
+      automatic = true;
+      dates = "weekly";
+      options = "--delete-older-than 60d";
+    };
+  };
+
+  nixpkgs = {
+    config = {
+      allowUnfree = true;
+      permittedInsecurePackages = [
+        "electron-27.3.11"
+        "nodejs-16.20.0"
+      ];
+    };
+    overlays = [rs-programs niri.overlays.niri];
+  };
+}