chore: add packages

* add easyeffects to hades for autoeq
* add nomad and tailscale to trench

Signed-off-by: Chinmay D. Pai <chinmay.pai@zerodha.com>

machines/hades/default.nix

@@ -13,6 +13,7 @@
   ];
 
   environment.systemPackages = with pkgs; [
+    easyeffects
     editorconfig-core-c
     netbird-ui
     pulumi-bin

machines/trench/default.nix

@@ -7,6 +7,11 @@
     ../../modules/programs/nixvim
   ];
 
+  environment.systemPackages = with pkgs; [
+    nomad_1_6
+    tailscale
+  ];
+
   services = {
     unifi = {
       enable = true;