PWD is a Docker playground which allows users to run Docker commands in a matter of seconds. It gives the experience of having a free Alpine Linux Virtual Machine in browser, where you can build and run Docker containers and even create clusters in Docker Swarm Mode.
The 'daddy' of play-with-k8s.com
Today I created an initial draft of OwnYourSwarm, a service that will convert your Swarm checkins to Micropub requests, and post them to your site. This is an early draft of the service still, but it should be functional enough to post basic checkins to your site.