There is very little interaction with the file system. Files are only stored on the FS during initial upload. After that, everything is a simple string value in a database. Lookups are basic string comparisons, very little computational effort, even for million of entries (only at 100k) I do apprecaite the thought. I believe the recent issues with images sometimes not being found is an operation issue on pic8's side, along with some fuckery with an underlying host. Been working on fixing some of these operational issues, but sadly the codebase was written back when I was a much less experienced developer.