[zozbot234]

> How good is rust at using existing C/C++ libraries? There’s so many of them for very useful low-level functionality, especially when programming against the Win32 API (which is written in C/C++ itself).

About as good as any other language with a C FFI (which is most of them).

> ... I worry about rust’s long-term trajectory as [Mozilla's] support of the language wanes.

I thought that was the whole point of having a Rust Foundation as separate from Mozilla itself.