found this https://cdn.discordapp.com/attachments/1177714083848536064/1376273733940936814/firmware.bin?ex=68472f4c&is=6845ddcc&hm=121cc0abf35dd692d3efc483a99b2811ecbddea873712c90bb31ae55471ab8c0&
That's the power regulator for the joycons charger and the fan
1684826736
https://nl.mouser.com/ProductDetail/Analog-Devices-Maxim-Integrated/MAX8969EWL53+T?qs=y6ZabgHbY%252BxQngkKAbrN%252Bw%3D%3D
Even the oldest chips still work. Improvements are mainly in terms of glitching speed and ease of install. Instinct seems to be much better than hwfly in that regard. Picofly glitching speed is possibly even better but install is invariably tougher.