@jamm has checked in the bits of code to support what we call "App Keys" on the #FujiNet.
More documentation info can be found here:
https://github.com/FujiNetWIFI/fujinet-platformio/wiki/SIO-Commands-for-Device-ID-%2470 as commands $DB to $DE
These provide a key/value store for applications to store and retrieve configuration information on the FujiNet.
Since these are implemented as SIO calls, and are outside of the purve