I'm creating this issue to collect information about possible solution for a flash translation layer for CircuitPython. While the flash memories CircuitPython boards normally use have a reasonably good lifetime, the FAT filesystem is not very friendly for flash. Adding the complexity of a wear-leveling layer would normally be an overkill, but I have recently discovered that there are some ready to use libraries for doing this, and some of them are optimized for low-resource systems. It might make sense to use one of them for the flash file system at some point.