ICH HABE SOPS-NIX ANGEMACHT.

That was some headbreaker. A path in nix is not a string, quotes are not
good. See sops.defaultSopsFile.

This was a very important last puzzle piece. Finally.

sops.nix

@@ -0,0 +1,10 @@
+{ inputs, pkgs, ... }: {
+  # imports = [
+  #   inputs.sops.homeManagerModules.sops
+  # ];
+
+  home.packages = with pkgs; [
+    sops
+  ];
+  
+}