Hi Chris,
Very cool project. We are also working on a model and applying for grants to support communities in creating their own landraces, there is a thread here.
Message me and I can share our most recent grant application.
Have you seen the Community Seed Network? They also have a map and share learning resources. I heard they are actually looking for help with the website, I wonder if it would make sense to partner up efforts if International is the goal.
Looking forward to seeing these projects evolve! Super important.