The hardware is complete, but there are several issues with the software that I need to resolve before finishing this page. If anyone has coding experience, please take a look at the project and help fix the problems listed below. Link to the projects code: Make It For Less / Spotify Controller · GitLab Thank you!
Current issues:
The remote becomes unresponsive if you play a podcast, requiring a reset and re-authentication.
The heart indicator for liked songs isn't working. I replaced it with a circle to get it working but a heart looks better.
Japanese song titles are not displayed at all.