add nix path; remove openrgb due to build issues; use unstable teams cause mic issues;

configuration/base/nix-settings.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ inputs, ... }:
 
 {
   nixpkgs.config.allowUnfree = true;
@@ -6,6 +6,8 @@
   nix.settings.auto-optimise-store = true;
   nix.gc.automatic = true;
   nix.gc.options = "--delete-older-than 7d";
+  # https://github.com/nix-community/nixd/blob/main/nixd/docs/configuration.md
+  nix.nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
 
   programs.nix-ld = {
     enable = true;