Existing Tasmota/OpenBeken devices can join as virtual controllers beside bbxTron. Norms, rules and alerts apply the same way — migration can be gradual.
Building mesh: one uplink, many nodes
Mesh and sidecars adopt nearby boards through a hub, show topology on the server and grow slot count without rewiring every cabinet.
Why edge + cloud beats “cloud only”
Sites lose connectivity. An on-site bbxGrid keeps ports, actions and access cache alive, then syncs events when the uplink returns — service teams stay in control while central analytics continue.
Access control without a vertical lock-in
Issue PIN, QR and BLE like a modern lock UX, then build your own product on the API. Controllers keep an offline cache so doors and lockers still work when the cloud is down.