This is something I'm hopeful will fall out accidentally from Zig's new IO interface. If everyone doing IO has the implementation injected, mocks (fault injecti

This is something I'm hopeful will fall out accidentally from Zig's new IO interface. If everyone doing IO has the implementation injected, mocks (fault injection, etc) become trivial, along with any other sort of feature you might want like checking S3 if you don't have a sufficiently recent local copy.