style: format nix code with nixfmt

flake.nix

@@ -39,6 +39,7 @@
               nixfmt-rfc-style
             ];
           };
+          formatter = pkgs.nixfmt-rfc-style;
         };
     };
 }

home/programs/alacritty.nix

@@ -12,6 +12,9 @@ in
       enable = true;
       settings = {
         shell = "tmux";
+        env = {
+          TERM = "xterm-256color";
+        };
         font = {
           size = 10;
           normal = {

home/programs/tmux.nix

@@ -1,4 +1,10 @@
-{ config, lib, ... }:
+{
+  config,
+  lib,
+  pkgs-unstable,
+  pkgs,
+  ...
+}:
 let
   cfg = config.dotfiles.tmux;
 in
@@ -10,9 +16,26 @@ in
   config = lib.mkIf cfg.enable {
     programs.tmux = {
       enable = true;
+      package = pkgs-unstable.tmux;
       prefix = "C-a";
       terminal = "screen-256color";
-      shell = "zsh";
+      shell = "${pkgs.zsh}/bin/zsh";
+      customPaneNavigationAndResize = true;
+      mouse = true;
+      extraConfig = ''
+        set -as terminal-features ",xterm-256color:RGB"
+        set -s escape-time 10
+        set -sg repeat-time 600
+        set -s focus-events on
+        set -g status-left-style NONE
+        set -g status-right-style NONE
+        set -q -g status-utf8 on
+        setw -q -g utf8 on
+        setw -g automatic-rename on
+        set -g renumber-windows on
+        set -g display-panes-time 800
+        set -g display-time 1000
+      '';
     };
   };
 }