Stephen Sherratt

Good to know. I wonder how hard it would be for dune to detect when the project and cache are on different filesystems and adjust its behaviour accordingly, or at...

Updated so that the binary repo is only used when solving dev tools.

I found an issue with this where if opam is installed but no switch is set then `dune tools exec ocamlformat` won't fall back to a globally-installed instance of ocamlformat....

> I found an issue with this where if opam is installed but no switch is set then `dune tools exec ocamlformat` won't fall back to a globally-installed instance of...

I don't understand why the `opam switch create` test is failing. I can reproduce it on the main branch locally but error doesn't make sense to me based on the...

I've updated this PR to remove any fallback behaviour. Changes that extend environments to allow dev tools to call each other can come in a later change.

> The dev tools calling each other is temporary ? Why would it be temporary?

> I wonder when we start having different versions of ocamlformat in a global cache to prevent rebuilding ocamlformat when switching on different projects, how we could deal with it....

Is anything else required before this can be merged?

Ah looks like it doesn't build after rebasing. Will fix.