Multiple ESP32 OTA updating

I'm looking for a way to update multiple ESP32 via OTA, I want to be able to update them without being in the same WiFi connection, also, how to also implement it through a GSM connection would be much appreciated. Im using platformio in VS code.

If you can provide the ESP32 with a source of the new binary, you can use httpUpdater

Any good info about how to implement it?

menitox:
Any good info about how to implement it?

I think it's the OTAWebUpdater example that you want. It's quite a bit different in how it is setup from the ESP8266 example, but it doesn't look that much more complicated. As a huge advantage over that it has, that the UI is outside of the library.

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