While recent versions of podman improved the remoting support they also introduced some critical bugs, like

export CONTAINER_HOST=ssh://root@example.com/run/podman/podman.sock
podman build .
# returns success (0), no output, but it failed to do anything

Trying to increase verbosity has not effects.

Both client (macos) and remote (fedora-32) are using same version of podman 2.0.6