Summary
If you're using NixOS with flakes and home-manager, this addresses the specific headache of overlays not applying when useGlobalPkgs is true. The core insight is simple but easy to miss: overlays defined in home.nix get ignored in that setup, they need to go in your system configuration instead. It includes decision matrices for where to put overlays based on your useGlobalPkgs setting, plus rule files covering flakes structure, host organization, and common mistakes. The documentation-first approach is a bit heavy-handed with the warnings, but honestly justified since most NixOS configuration issues come from not understanding the interaction between system and home-manager package scopes.
Install to Claude Code
npx -y skills add lihaoze123/my-skills --skill nixos-best-practices --agent claude-codeInstalls into .claude/skills of the current project.
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
Files
SKILL.md
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Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →First SeenJun 3, 2026
