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(Coauthor of RWO here)

We are just finishing edits of a few chapters (the tooling, testing and GADT ones), and then it’ll be off to the publishers early in the new year. The online one is therefore pretty up to date.

There’s also a thread on the OCaml forums on this topic with more suggestions: https://discuss.ocaml.org/t/how-do-you-stay-productive-in-oc...

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since you're here, what do you think about starting a new OCaml project with esy as best practice today? I was working on https://o1-labs.github.io/ocamlbyexample/ and I was thinking of starting with that approach as it seems to provide a more modern experience than just opam/dune. (I read your book as introduction to OCaml and still struggled a ton with all the edge-cases of dune and opam. Even today I'm iffy every time I start working on some OCaml code again because I know I'll have to deal with opam/dune issues.)

Thanks a bunch!

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