As @erik-lonroth discovered several months ago, the process for getting a tutorial up at https://tutorials.ubuntu.com was difficult. There was also no home for content that was Juju-specific. It’s now much easier! And this community has its own site.
Topics created in the #tutorials category become nicely rendered pages at https://jaas.ai/tutorials:
[Juju is also getting its own website separate from JAAS, but this is the space we’re occupying now]