Great to see that you included DIN-MIDI. It's not clear if the now-more-popular USB-MIDI is supported already. If not, it should be relatively easy to add, since the Teensy 4.1 can act as a USB Host. I did that with the pico using https://github.com/hathach/tinyusb so it should be similarly easy on the Teensy (if not done already -- if done already, this "bug" is mentioning it on the main README)
Great to see that you included DIN-MIDI. It's not clear if the now-more-popular USB-MIDI is supported already. If not, it should be relatively easy to add, since the Teensy 4.1 can act as a USB Host. I did that with the pico using https://github.com/hathach/tinyusb so it should be similarly easy on the Teensy (if not done already -- if done already, this "bug" is mentioning it on the main README)