(Go) Dancing cursor replacing a square in a (Python) little game

Hello ! I am a beginner in programming, and i wanted to do this ‘simple’ task: https://github.com/quasar098/midi-playground Here is a game where i wanted to replace the square (bouncing on wall making music) by a smooth dancing cursor with a trail like this one: https://github.com/Wieku/danser-go Who look like this: https://youtu.be/5icFcPkVzMg?feature=shared So i have the Go code of the cursor and the python code of the initial game, i don’t know if its easier to make the cursor from scratch or just trying to transfer Go to Python code to make it work, PLEAAASE can someone help me ? I’ve been prompting for days now and keeping getting a lot of errors and im kinda starting to get crazy.