I am working on a virtual computer for kids and retro loving adults. I wanted to simulate block storage using Local Storage as the backing store because I felt

I am working on a virtual computer for kids and retro loving adults. I wanted to simulate block storage using Local Storage as the backing store because I felt that blocks were very understandable. I've had block storage working for many years, but when I went to build a filesystem atop it, my design was uninspired and my implementation was buggy. When I found FatFs, I realized I had a perfect fit: a realish filesystem with an API that I could map right onto system calls, and FAT32 - a klunky old jalopy that will need defragmenters and other disk tools to maintain it. It'll make for an altogether more interesting ecosystem and a gentle challenge for the user to maintain. Also, there are many areas of my javascript that are primed for conversion to C -> WASM, like sprite collision detection. JavaScript optimizers have done ok with my code, but I'd like my compy to run fast on mobile too. If I am successful with FatFs, I will have a convenient spot in my codebase for converting my busy number-intensive routines into WASM.