edmundmiller/nix-rebuild
.pi/skills/nix-rebuild/SKILL.md
Rebuild nix-darwin/NixOS system after dotfiles changes. Use when config files managed by Nix (lazygit, ghostty, etc.) need to be regenerated, or after editing any .nix file in the dotfiles repo.
$ install --global
skillsauthnpx skillsauth add edmundmiller/dotfiles nix-rebuildInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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TrivyContainer and dependency vulnerability scanner
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95%
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Snyk (dep)Open source security scanning
50%
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50%
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OWASP Dep-Check
50%
Last scanned: Apr 15, 2026, 5:18 PM43.0s1 file scanned
SKILL.md
- name:
- nix-rebuild
- description:
- >
Nix System Rebuild
After changing any Nix-managed config in ~/.config/dotfiles, the system must be rebuilt for changes to take effect. Nix store symlinks are read-only — you cannot edit them in place.
Quick Rebuild
cd ~/.config/dotfiles
sudo darwin-rebuild switch --flake .
darwin-rebuild has a NOPASSWD sudoers rule, so this works non-interactively.
Using hey
The hey command wraps rebuilds:
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
.nixfile - After editing config files symlinked through home-manager (lazygit, ghostty, etc.)
- When you see "permission denied" writing to a Nix store path
Workflow
- Edit source config in
~/.config/dotfiles/ - Commit changes
- Run
sudo darwin-rebuild switch --flake ~/.config/dotfiles - Verify the symlink now points to updated Nix store path
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