Add start-tmux

modules/scripts/start-tmux.nix

@@ -0,0 +1,33 @@
+{ withSystem, ... }:
+
+let
+  name = "start-tmux";
+in
+{
+  perSystem =
+    { pkgs, ... }:
+    {
+      packages.${name} = pkgs.writeShellApplication {
+        inherit name;
+
+        # TODO: Add `z` once its available as a package.
+        runtimeInputs = with pkgs; [
+          fzf
+        ];
+
+        text = ''
+          selected="$(z tmux session list | fzf)"
+
+          [[ -n $selected ]] && z tmux session connect "$selected"
+        '';
+      };
+    };
+
+  flake.modules.homeManager.base =
+    { pkgs, ... }:
+    {
+      home.packages = [
+        (withSystem pkgs.system (psArgs: psArgs.config.packages.${name}))
+      ];
+    };
+}