Flipper Zero app to flash ESP chips from the device (no computer connection needed!). Requires an ESP chip connected to the flipper's UART pins (e.g. Wi-Fi devboard).
For app feedback, bugs, and feature requests, please create an issue here: https://github.com/0xchocolate/flipperzero-esp-flasher/issues
You can find me (0xchocolate) on discord as @cococode.