Replace the post-boot full-history git bundle path with a shallow repo copy so vm run no longer spends its quiet time shipping and cloning every object in the source repository.
Stage a depth-10 no-checkout clone from the host repo, fetch the requested checkout commit only when it is outside the shallow window, rewrite origin back to the host repo's origin URL, and keep the existing guest checkout plus working-tree overlay behavior.
Add explicit [vm run] progress lines after [vm create] ready so the user can see the SSH wait, shallow repo prep, guest copy, overlay, and opencode attach phases instead of a silent pause.
Validated with GOCACHE=/tmp/banger-gocache go test ./..., make build, and a local payload comparison showing the banger repo dropping from a ~400 MB full bundle to a ~294 KB shallow metadata copy.
Thales Maciel
1e967140c3