Looks like it should work with podman out of the box by setting the DOCKER_HOST environment variable to your podman socket. Or facing any compatibility issues?
It listed containers, volumes and networks and started & stopped a container. The Terminal item expects the container to have bash, so would need some tweaking to use /bin/sh.
I didn't need to set DOCKER_HOST, but I assume I have the Docker compatibility mode enabled.
Some light usage here and no issues so far.