nilsandClaude Opus 5.5
2c8d5562f9
nixosModules.settings builds a router from a JSON file: the router options as they are, plus host name, time zone, SSH keys and stateVersion; the module system validates it. lib.mkRouterSystem builds such a system, lib.mkConfigDir the configuration directory installed to /var/lib/router/config (a flake pinned to this router source, the settings and an optional local.nix). router-apply builds it and switches with commit-confirm. The device must be able to rebuild without internet, so the packages the rebuilt derivations need are part of the system; they were found by diffing the derivation graphs of typical changes against the installed system. checks.apply installs such a router, boots it offline, checks that the unchanged settings rebuild to the installed system, applies and confirms a change, and rolls back an unconfirmed one. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>