Some Ideas about FileSystem

[zhuocheng2004]

There seem to be at least two kinds of filesystems:
1. Java App-level filesystem. For example "file://..." or "jar://...". Maybe we can have things like "idbfs://...".
2. Runtime/System-level filesystem. For example in Linux, we can mount an fs on some dentry, and our program can just deal with it in the default way. (I know in Emscripten, things like IDBFS are implemented in this way.)
If we implement browser-based filesystems, what kind should we prefer?

I'm new to TeaVM, and I just started to try it, so please forgive me if I'm wrong.