Thanks for the love man!

> "rewrite it in rust for safety" just sounds stupid

To be fair, Fil-C is quite a bit slower than Rust, and uses more memory.

On the other hand, Fil-C supports safe dynamic linking and is strictly safer than Rust.

It's a trade off, so do what you feel

Minor nitpick. Or confusion on my part. In the filc_malloc function the call to calloc doesn't seem to allocate enough memory to store an AllocationRecord for each location in visible_bytes. Should it be:

    ar->invisible_bytes = calloc(length, sizeof(AllocationRecord));