zsh: enable, set for qenya, add config

home/zsh.nix

@@ -0,0 +1,31 @@
+{ config, lib, pkgs, ... }:
+
+{
+  programs.zsh = {
+    enable = true;
+    enableCompletion = true;
+    autosuggestion.enable = true;
+    syntaxHighlighting.enable = true;
+    dotDir = ".config/zsh";
+
+    shellAliases = {
+      ll = "ls -l";
+    };
+
+    history = {
+      size = 10000;
+      path = "${config.xdg.dataHome}/zsh/history";
+      ignorePatterns = [ "rm *" "pkill *" ];
+    };
+
+    oh-my-zsh = {
+      enable = true;
+      plugins = [ "git" "sudo" ];
+      theme = "agnoster";
+    };
+
+    envExtra = ''
+      DEFAULT_USER=qenya
+    '';
+  };
+}