tmux: setup for servers

modules/server/default.nix

@@ -0,0 +1,18 @@
+{
+  flake.modules.nixos.server =
+    { ... }:
+    {
+      programs.tmux = {
+        enable = true;
+
+        clock24 = true;
+        newSession = true;
+        keyMode = "vi";
+        terminal = "ghostty";
+        extraConfig = ''
+          set -g mouse on
+        '';
+      };
+
+    };
+}