add some initial stuff

modules/cli/tmux.nix

@@ -0,0 +1,33 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}:
+let
+  cfg = config.xyno.cli.tmux;
+in
+{
+  options.xyno.cli.tmux.enable = lib.mkEnableOption "enable tmux with xynos config";
+  config = lib.mkIf cfg.enable {
+    programs.tmux = {
+      enable = true;
+      keyMode = "vi";
+      clock24 = true;
+      historyLimit = 10000;
+      plugins = with pkgs.tmuxPlugins; [
+        vim-tmux-navigator
+      ];
+      extraConfig = ''
+        set -sg escape-time 0 # makes vim esc usable
+        new-session -s main
+        bind-key -n C-e send-prefix
+        bind '"' split-window -c "#{pane_current_path}"
+        bind % split-window -h -c "#{pane_current_path}"
+        bind c new-window -c "#{pane_current_path}"
+        # set-option -g default-terminal "tmux-256color"
+        # set -as terminal-overrides ',xterm*:Tc:sitm=\E[3m'
+      '';
+    };
+  };
+}