I suggest you try this if you're new to ocaml or interesting in trying out OCaml.
I have grown accustomed to things just working. Run a copy-pasted command from a website "just works" level. Opam is what sent me into half-day of reading about OCaml ecosystem and how things work.
The developer preview successfully abstracts a lot of things into a command you run, refresh your shell environment, and have a working dune project. Just works, like I expect.
TL;DR Wanna try OCaml because it's Rust of functional programming? Check this out.
we also have a thread on the ocaml forums for updates: https://discuss.ocaml.org/t/ann-dune-developer-preview-updat...