OxCaml is more of a competitor to Go, JS/Typescript or the Java/.NET ecosystems than these two other languages. It's also a temporary effort that's ultimately intended to feed into upstream Ocaml.
Examples, real time Java, Oberon, Pascal, BASIC Stamp, Propeller,..
Hah, I was reading it as `0x`, a common prefix indicating hexadecimal, though I can't say my brain made any leap as to why "0xCAML" would be any more hex than standard.
For the rest of us, languages with automatic resource management are perfectly usable in systems programming.