OT a bit, but ESP32 related. My friend and I have been playing around with ESP32 this year and have made some cool projects. One of the best platforms is known as the 'Cheap yellow board', it's an ESP32 on a board with a 2.8 inch display, Card reader, audio amp and a few other things. You can get them for around $10 USD from Aliexpess and other Chinese vendors.
Here are a few links to projects. The first is a github site
https://github.com/witnessmenow/ESP32-C ... ow-Display
Random Nerd have a number of projects
https://randomnerdtutorials.com/?s=esp32+cyd
The project I really wanted to talk about is ESP32 Marauder, politely called a penetration testing tool. I think the Marauder s/w was originally developed as a wifi/bluetooth addition to the infamous Flipper Zero. Marauder has been implemented on the cyd by this bloke on github.
https://github.com/ATOMNFT/CYD-ESP32Marauder/
He has instructions on how to add GPS and 'Evil Portal', both of which we have done successfully. A life of crime awaits me. We've 3d printed cases for them, and it looks very professional.
He even has set it up to 'Webflash' which is a truly a beautiful thing.