The Kicad “Plugin and Content Manager” has the ability to “manage” several repositories.
Other than the “Kicad official repository”, all other repositories are for a single plugin or parts library, not a collection of plugins and various parts libraries.
Is that feature of the “Plugin and Content Manager” a leftover from previous versions and not used anymore, or are there other repositories of plugins and stuff and my Google-fu is failing me?
I’m not looking for anything in particular. Just curious.
They probably don’t exist publicly because there is not a large reason to create an alternative to the official KiCad repository.
Part of the reason for the feature is that people can create private repositories, for example to distribute content to a team inside a company.
The only examples of public repositories I know of besides the official one, are when people want to publish something publicly that can’t be published on the official one due to not being in compliance with KiCad’s policies for whatever reason.
Nothing stops someone from creating a repository containing multiple plugins and publishing that; there just isn’t much reason to do so, I think.
An example would be libraries in KiCad 5 format. They can be installed from file but policies wouldn’t allow them to be in the official repository. Or plugins that have been relocated and therefore the new location doesn’t match the one recorded in the plugin itself anymore.
I created a custom repository (for my company) and I can’t see any reason, why it should not be possible to create a repository for more than one library.