I have been working on a BLE keyboard library for a while, and I think I have it to a pretty solid state now.
It's based on the NimBLE-Arduino library by h2zero, and runs on the Espressif arduino-esp32 core.
Would love to get some more eyes on it, and get feedback, and to clean up any bugs you can find.
Get it through the Arduino IDE Library (Search for "HijelHID") or from Github github.com/HijelHub/HijelHID_BLEKeyboard