Migrate Tmux config to Nix

nix/modules/tmux.nix

@@ -0,0 +1,34 @@
+{ config, lib, pkgs, ... }:
+{
+  programs.tmux = {
+    enable = true;
+    mouse = true;
+    shortcut = "s";
+    baseIndex = 1;
+    keyMode = "vi";
+    customPaneNavigationAndResize = true;
+
+    plugins = with pkgs; [
+      tmuxPlugins.sensible
+    ];
+
+    extraConfig = ''
+# Splitting panes
+bind - split-window -v -c '#{pane_current_path}'
+bind \\ split-window -h -c '#{pane_current_path}'
+
+# New window at current path
+bind c new-window -c '#{pane_current_path}'
+
+# Break pane into new window
+bind b break-pane -d
+
+# Status bar themeing
+set-option -g status-bg '#666666'
+set-option -g status-fg '#aaaaaa'
+
+# Toggle mouse-mode
+bind m set-window-option mouse
+'';
+  };
+}