I recently wrote my own zero allocation HTTP server and while the above statement is possible to achieve, at some point you need to make a decision on how you handle pipelined requests that aren't resolved synchronously. Depending on your appetite for memory consumption per connection, this often leads to allocations in the general case, though custom memory pools can alleviate some of the burden.

I didn't see anything in the article about that case specifically, which would of been interesting to hear given it's one of the challenges I've faced.

> I am also deeply sick and tired of maintaining large Python scripts recently, and crave the modularity and type safety of OCaml.

I can totally relate. Switching from Python to a purely functional language can feel like a rebirth.