feat: zsh tweaks

home/apps/zsh.nix

@@ -4,6 +4,7 @@
   pkgs,
   ...
 }: let
+  inherit (pkgs.stdenv) isLinux;
   srcs = pkgs.callPackage ../../_sources/generated.nix {};
   zshPlugins = plugins: (map (plugin: rec {
       name = src.name;
@@ -16,6 +17,7 @@ in {
     LESSHISTFILE = "-";
     MANPAGER = "sh -c 'col -bx | bat -l man -p'";
   };
+  home.packages = [pkgs.onefetch];
 
   programs = {
     atuin = {
@@ -127,9 +129,33 @@ in {
           ZVM_VI_HIGHLIGHT_FOREGROUND=white
         }
       '';
-      initExtra = ''
-        for script in "${./zsh/functions}"/**/*; do source "$script"; done
-      '';
+      initExtra =
+        ''
+          function incognito() {
+            if [[ -n $ZSH_INCOGNITO ]]; then
+              add-zsh-hook precmd _atuin_precmd
+              add-zsh-hook preexec _atuin_preexec
+              unset ZSH_INCOGNITO
+            else
+              add-zsh-hook -d precmd _atuin_precmd
+              add-zsh-hook -d preexec _atuin_preexec
+              export ZSH_INCOGNITO=1
+            fi
+          }
+
+          onefetch_in_git_dir() {
+            if [[ -d '.git' ]]; then
+              ${pkgs.onefetch}/bin/onefetch --no-merges --no-bots --no-color-palette --text-colors 1 1 3 4 4
+            fi
+          }
+
+          add-zsh-hook chpwd onefetch_in_git_dir
+        ''
+        + lib.optionalString isLinux ''
+          function open() {
+            nohup xdg-open "$*" > /dev/null 2>&1
+          }
+        '';
 
       dotDir = ".config/zsh";
       oh-my-zsh = {