Firmware switching! The app now supports flashing two different firmware apps to slot A and slot B and uses the otadata partition (initialized by boot_app0) to switch between them. Make sure your firmwares are compiled to use the same partition table to avoid issues!
This worked for me on the official wifi dev board using Marauder in one slot and Evil Portal in the other. Now I can switch between them without waiting! ;)
Where's the FAP?
The FAP is built automatically for dev and release channels of both official and unleashed firmware. Download the artifact corresponding to your firmware version here: https://github.com/0xchocolate/flipperzero-esp-flasher/actions/runs/5899209896