@ElDeadKennedy @freetar @sally @lanodan @a1ba Storage on an external flash drive is kind of hacky and is unreliable - but it can be made to work.

Generally such kind of routers cannot run recent versions of BusyBox/Linux, due to how bloated Linux has become unless you at least do a 16MiB SPI flash chip mod (which is a difficult soldering job) and then do a special external packages configuration.

Also, every time you update, you'd need to redo the external configuration and reinstall any extra software you used.