I have a crude proof-of-concept port of the ESP8266 implementation of LittleFS to Teensy using SPIFlash.

Except for the fact that the included SPIFlash library seems to hang with my 8Mbit Winbond chip (I had to use the version from GitHub) everything appears to work on a first pass.

Is there any use/need for this more generally? I was looking to use it to store log files (lots of file appends).