Has anybody already discussed Outreachy (formerly Outreach Program for Women / OPW) and Google Summer of Code (GSoC)?
GSoC projects are mainly about coding (some interaction with hardware may be OK), only for students and paid by Google.
Outreachy projects can be more diverse, including coding, hardware, community, documentation, etc and the applicants are from a non-white-privileged-male background. They don't have to be students.
Mentoring could be done from core members of the OpenAg team or any of the wider community. Has anybody mentored in Outreachy or GSoC for any other free software project before? Mozilla, one of the OpenAg backers, is also involved in these programs and may be able to share experience.
The next Outreachy round starts very soon, this page gives details about how organizations like OpenAg can join. It doesn't give a specific deadline but it suggests that somebody from OpenAg should be in contact with Outreachy by the end of August.
Through organizing the Zurich meeting I've already met several people who would appear to be interesting candidates for both Outreachy and GSoC.