What backend to use for coordinated work of several WiFi microcontrollers?

Question

Arduino

Good afternoon!
I would like to make a system where several devices on ESP32 or ESP8266 can work in concert.
It would be easier for me if they gave their control data and took control commands (just zeros and ones for their internal functions) from airtable.com , but this is not necessary. In any case, no big complexity is planned in the backend, everything is quite simple.
I want to combine it all wirelessly so that it works over WiFi. Connecting to the Internet is not a problem if necessary, but I'm not going to steer it remotely.
Question: Do I need to fence some kind of backend, (if so, which one?) Or can I use something ready-made, preferably cloudy (what?)?

Answer 1

Node-RED? My ESP8266 works great with Node-RED via MQTT - they accept commands and send data.