CapibaraZero - easy and cheaper DIY alternative to FlipperZero on an ESP32

You can buy <5 USD fully built ESP32 modules on https://AliExpress.com

Alternatively, you can support to original creators of ESP32 and buy their modularized premades. Includes pricier options with screens, audio + keystroke I/O, etc.

http://m5stack.com/

Yes, that website doesn't have SSL, stop being a fucking nerd, Chinese company's websites generally don't have any