For anyone interested in OTA updates over BLE on the esp32 using espressif's phone app or @gb88's [webapp](https://gb88.github.io/BLEOTA/). I have created a repo, sponsored by [Theengs](https://www.theengs.io). You can find it [here](https://github.com/h2zero/NimBLEOta) and it's super simple to use, hope you enjoy it!