Just out of curiosity, what's the plugin? Are there folks interested in paying for plugins?

The plugin is called Relay [0] -- it makes Obsidian more useful in a work setting by adding real-time collaboration.

One thing that makes our offering unique is the ability to self-host your Relay Server so that your docs are completely private (we can't read them). At the same time you can use our global identity system / control plane to collaborate with anyone in the world.

We have pretty solid growth, a healthy paid consumer base (a lot of students and D&D/TTRPG), and starting to get more traction with businesses and enterprise.

[0] https://relay.md