diff --git a/README.md b/README.md
index 23e8061d..402fc97f 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,11 @@ This repo is managed with Nix + GNU stow
   # profit
   ```
 
+# Pitfalls
+## `users.mutableUsers`
+NEVER set this to true without declaratively setting the passwords.
+It would change the password to ! and you can't login.
+
 # Hosts
 - vanadium: Framework 13 (AMD 7040 Series)
 
diff --git a/nix/configurations/vanadium/nixos/misc.nix b/nix/configurations/vanadium/nixos/misc.nix
index a0795332..db83b159 100644
--- a/nix/configurations/vanadium/nixos/misc.nix
+++ b/nix/configurations/vanadium/nixos/misc.nix
@@ -13,8 +13,4 @@
     # https://community.frame.work/t/stability-issues-random-crashes-reboots-and-boot-freezes/62675/4
     "pcie_aspm=off"
   ];
-
-  # I have learned my lesson
-  # NEVER set this to true. It would change the password to ! and you can't login
-  # users.mutableUsers = false;
 }