As a kid, I liked to listen to my grandfather’s radio which was very awesome and I am still happy he never sold it, so I can still listen to it. Unfortunately there are little AM stations which broadcast today.
But a while ago I saw nice video about an AM transmitter which you can make with an ESP32 and a single wire: https://youtu.be/lRXHd3HNzEo . It took me a while to get the program to upload to the ESP32 with my Mac (had to install a development version of the ESP32 board in the arduino IDE), but after that it was very simple
Now I can finally listen to @lookmumnocomputer with my grandfather’s antique radio. It is just a small looping sample, but hey, it is some funky music!