I would be willing to contribute to a repo/folder to provide project type "starter packs" that could easily be downloaded to a user's ~/.agent-os directory and available for project setup. Would this is something you would be interested in?
If so, I'd be happy to kick it off with SvelteKit and Bun JS CLI app project types.
I could look into extending the install script or creating a new one to make it easy to install/update project types.