Super cool! I was similarly inspired by UE and built a node-based editor into my in-browser DAW project (https://wavtool.com/).

It really is an excellent interface paradigm. I expected it to be daunting to first-timers but user feedback has been alarmingly positive. Many beginners find this more intuitive than the standard sequential list of effects, because the node-based interface reminds them of guitar pedalboards and home theatre systems.