What will be a simple web scraper in OCaml to try out using the language on a real world project

First you will need to make sure you have ocaml, opam and dune instealled. Then you will need to install the dependencies like so opam install cohttp-lwt-unix lwt_ppx lambdasoup finally run dune build main.exe which will build in _build/default/main.exe

N.B. if building on OpenBSD you'll likely have to increase your stack size limit during dependency install as parsexp uses a large stack allocated array. This can by done by running ulimit -s 32768 in the shell before you start