David Allsopp

(modulo squashing, obviously)

Naturally, this is also more weight for the already-planned switch to using ocaml-tar!

This is likely to be a pain, so feel free to object! I like the switch to N0REP0 because it's faster, but might it be worth using the same package...

@gridbugs - that trick is entirely fine for Windows and indeed opam’s prototype compiler packaging is using a very similar trick to shim GCC out of Cygwin

> Using `any` and `all` seems fine to me. I also wonder if we should have `one_of`. Users always seem to get surprised that `|` isn't exclusive. Wouldn't `one_of` end...

I'm trying to understand the "local" bit futher. Like @Leonidas-from-XIV, I very much like the ability to drop a project straight into the tree (cf. [this old eulogy of mine](https://www.dra27.uk/blog/platform/2018/08/15/dune-vendoring.html))....

I'd anticipate this has been addressed by #12706, as the tools are now built as part of the main build (in advance of running the testsuite). If it's not, please...

#12589 has been merged in favour of this approach - thanks for the report, testing on the other PR and for this alternate approach!

(linking in the third attempt for immediates, stalled in #11841)

This is caused by using a C++20 compiler and was fixed in https://github.com/ocaml/ocaml/pull/9895. Are you able to use OCaml 4.12 instead? A safe workaround should be simply to delete `/Users/davesnx/Code/github/counter-as-a-service/_opam/lib/ocaml/version`.