... and it hasn't actually flopped. It just reached its level of... usefulness. As others commented a few weeks ago in a different conversation, Swarm had/has significant utility for smaller deployments, but K8S has sucked the air out of the (marketing) room. So life goes on, as does docker and Docker Hub. Many of us small potatoes users will continue to use docker until we can't, and then probably wind up on podman, or lxd. That will be OK too: as long as the work gets done. We survived the demise of Solaris Freeware, we'll survive this too.