What an incredibly detailed and calming project! I am really impressed with how you connected so many different audio materials to create a final PWA product. The very fact that it works offline and acts like a native application is enough to make it a great background soundtrack for focused work. I saw your mentioning of Claude Code as a means for handling PWA backend and offline caching issues. As a person who usually creates everything manually, I am willing to find out how it went for you. Did this solution manage to master the technical side of Service Workers and caching techniques at once or did it take a lot of iterations to get everything in order?