New to group? Start here: List of active discussions

Let's occasionally post summary updates below, on the sub-project discussions currently active in various threads. This can be especially useful for new people joining us, since some of the most active threads are invisible until you join the private subgroup Platform Purchasing Co-op

We could also talk about:
* which threads should be private vs public;
* whether to continue sending people to our Slack channel, which is now far less active than this Loomio group;
* how to balance our tendency to spawn sub-projects versus the importance of concentrating our energies on the "most promising" sub-projects.

I created this thread to help newcomers like this one, and to address some issues raised in this new thread topic.