diff --git a/home/develop/emacs/custom.el b/home/develop/emacs/custom.el
index 3d42713..0171fea 100644
--- a/home/develop/emacs/custom.el
+++ b/home/develop/emacs/custom.el
@@ -15,6 +15,14 @@
 ;; Disable annoying bell
 (setq ring-bell-function 'ignore)
 
+;; Skip package.el entirely when using Nix
+(setq package-enable-at-startup nil)
+(setq package-archives nil)
+(when (and (boundp 'use-package-ensure-function)
+           (getenv "NIX_PROFILES"))
+  (setq use-package-ensure-function 'ignore)
+  (setq use-package-always-ensure nil))
+
 ;; -----------------------------------------------------------------------------
 ;; --- Editor Defaults
 ;; -----------------------------------------------------------------------------