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NixOS/docs/playbooks/add-module.md
Danilo Reyes d448e0f6c8 reviewing
2026-01-30 16:42:29 -06:00

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# Playbook: Add a NixOS Module
- Name: Add a module under `modules/<category>/`
- Purpose: Introduce a new module following auto-import and toggle conventions.
- Prerequisites: Identify target host(s) and toggle category; confirm `my.secureHost` if secrets are involved.
- Inputs: Module name, category (apps/dev/scripts/servers/services/shell/network), required options, secret needs, proxy requirements if server-facing.
- Steps:
1. Choose the category path from `docs/reference/index.md` and create `modules/<category>/<name>.nix` (auto-import picks it up; avoid names filtered out such as `librewolf.nix`).
2. Define options under `my.<category>` or reuse factories (`mkserver` for servers, `mkscript` for scripts) instead of hand-rolled patterns.
3. If the module needs secrets, guard references with `lib.mkIf config.my.secureHost` and map them to the correct secrets file (see secrets map).
4. For networked services, align host selection with `my.mainServer` and `my.ips`; enable reverse proxy via `enableProxy` when applicable.
5. Wire toggles for target hosts in `hosts/<host>/toggles.nix`, ensuring users/groups and containers/proxy flags are set.
- Validation:
- Module loads without extra imports (auto-import applies).
- Toggle wiring matches intended hosts; secureHost gating present for secrets.
- Proxy and port choices align with `my.mainServer`, `my.ips`, and firewall rules.
- Outputs: New module file and updated host toggles if required.
- References: `docs/constitution.md` (Module Categories, Secrets Map, Main server and proxies), `docs/reference/index.md` (Module Directories, Proxy rules, Secrets Map)