feat(user/refnode): let home-manager manage first part of tmux config

Author: refnode

users/refnode/common/core/default.nix

@@ -9,6 +9,7 @@
     ./direnv.nix
     ./bat.nix
     ./neovim.nix
+    ./tmux.nix
   ];
 
   home.stateVersion = "24.11";

users/refnode/common/core/tmux.nix

@@ -0,0 +1,61 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: {
+  programs.tmux = {
+    enable = true;
+    baseIndex = 1;
+    keyMode = "vi";
+    prefix = "C-Space";
+    sensibleOnTop = true;
+    mouse = true;
+    # shell = "reattach-to-user-namespace -l ${pkgs.zsh}/bin/zsh";
+    # shell = "${pkgs.zsh}/bin/zsh";
+    plugins = with pkgs; [
+      tmuxPlugins.nord
+      tmuxPlugins.vim-tmux-navigator
+      tmuxPlugins.tmux-fzf
+      {
+        plugin = tmuxPlugins.fzf-tmux-url;
+        extraConfig = ''
+          set -g @fzf-url-history-limit '2000'
+        '';
+      }
+      {
+        plugin = tmuxPlugins.session-wizard;
+      }
+    ];
+    extraConfig = ''
+      # unbind some unliked defaults
+      unbind '"'
+      unbind %
+      unbind Up
+      unbind Down
+      unbind Left
+      unbind Right
+
+      # Rebind split plane and let the new pane open with the current
+      # working directory of the current pane.
+      bind _ split-window -h -c "#{pane_current_path}"
+      bind - split-window -v -c "#{pane_current_path}"
+
+      bind-key Enter run-shell "${pkgs.ref-main}/bin/ref-main"
+
+      # Enable a keybind layer for additional mappings.
+      # As tmux only accepts a single key for keybinds, this configuration
+      # creates a new table similar to the ones of copy-mode or copy-mode-vi.
+      # So Ctrl-Space as the choosen prefix for this tmux config,
+      # followed by another Space enters the "leader" with the following
+      # keybindings to the given features.
+      bind-key Space switch-client -T leader
+      bind-key -T leader ,     command-prompt -I "#W" "rename-window '%%'"
+      bind-key -T leader Enter run-shell "${pkgs.ref-main}/bin/ref-main"
+
+      set-option -g default-command "reattach-to-user-namespace -l zsh"
+
+      source-file ~/.config/tmux/local.tmux
+    '';
+  };
+}