feat(home-manager): add support for tmux (#21)

modules/home-manager/default.nix

@@ -9,6 +9,7 @@
     ./helix.nix
     ./gtk.nix
     ./polybar.nix
+    ./tmux.nix
   ];
   options.catppuccin = {
     flavour = lib.mkOption {

modules/home-manager/tmux.nix

@@ -0,0 +1,34 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.programs.tmux.catppuccin;
+
+  plugin = with builtins;
+    with pkgs;
+    let rev = "4e48b09a76829edc7b55fbb15467cf0411f07931";
+    in tmuxPlugins.mkTmuxPlugin {
+      pluginName = "catppuccin";
+      version = substring 0 7 rev;
+      src = fetchFromGitHub {
+        owner = "catppuccin";
+        repo = "tmux";
+        inherit rev;
+        sha256 = "sha256-bXEsxt4ozl3cAzV3ZyvbPsnmy0RAdpLxHwN82gvjLdU=";
+      };
+    };
+in {
+  options.programs.tmux.catppuccin = with lib; {
+    enable = mkEnableOption "Catppuccin theme";
+    flavour = mkOption {
+      type = types.enum [ "latte" "frappe" "macchiato" "mocha" ];
+      default = config.catppuccin.flavour;
+      description = "Catppuccin flavour for tmux";
+    };
+  };
+
+  config.programs.tmux.plugins = with lib; mkIf cfg.enable [
+    {
+      inherit plugin;
+      extraConfig = "set -g @catppuccin_flavour '${cfg.flavour}'";
+    }
+  ];
+}