Nix System Rebuild

~/.config/dotfiles

Quick Rebuild

cd ~/.config/dotfiles
sudo darwin-rebuild switch --flake .

darwin-rebuild

Using hey

hey

hey rebuild    # or: hey re
hey test       # build + activate without boot entry
hey rollback   # roll back to previous generation

When to Rebuild

• After editing any

  .nix

  file
• After editing config files symlinked through home-manager (lazygit, ghostty, etc.)
• When you see "permission denied" writing to a Nix store path

Workflow

1. Edit source config in

   ~/.config/dotfiles/

2. Commit changes
3. Run

   sudo darwin-rebuild switch --flake ~/.config/dotfiles

4. Verify the symlink now points to updated Nix store path