fauxpam
Fake opam binary.
Promises nothing.
Delivers nothing (except a binary named opam).
One million percent cross platform.
Use Cases
You have a package that relies on opam at build time and the author won't fix
it. You can set up a local override that makes it depend on fauxpam. Over
time we can make fauxpam's opam binary actually kind of resemble opam's
behavior. Most of the users of opam binary at build time are just asking for
opam config, so that could be pretty easy.