Ahrefs seems to be using it to some extent too: https://ahrefs.com/jobs/backend-engineer---sre https://ahrefs.com/jobs/backend-engineer---sre > Our backend is

Ahrefs seems to be using it to some extent too: https://ahrefs.com/jobs/backend-engineer---sre https://ahrefs.com/jobs/backend-engineer---sre > Our backend is mostly implemented in OCaml with some D and C++.