chore: cleanup flake

Signed-off-by: Lander Van den Bulcke <landervandenbulcke@gmail.com>

flake.nix

@@ -114,33 +114,18 @@
         }
       );
 
-      nixosConfigurations =
+      nixosConfigurations = {
-        let
-          hetzner = import ./lib/hetzner.nix { inherit inputs nixpkgs; };
-        in
-        {
         # Workstations
         wodan = nixpkgs.lib.nixosSystem {
           specialArgs = { inherit inputs outputs; };
           modules = [
-              { nixpkgs.overlays = [ overlays.additions ]; }
             {
               nixpkgs.overlays = [
+                overlays.additions
+                overlays.unstable-packages
                 tidalcycles.overlays.default
-                  (_: prev: {
-                    tailscale = prev.tailscale.overrideAttrs (old: {
-                      checkFlags = builtins.map (
-                        flag:
-                        if prev.lib.hasPrefix "-skip=" flag then
-                          flag + "|^TestGetList$|^TestIgnoreLocallyBoundPorts$|^TestPoller$"
-                        else
-                          flag
-                      ) old.checkFlags;
-                    });
-                  })
               ];
             }
-              { nixpkgs.overlays = [ tidalcycles.overlays.default ]; }
             ./hosts/wodan
           ];
         };