Applying Agile in a non-profit context requires recognition of a near-universal truth: non-profits are notoriously underfunded and understaffed, leaving individuals wearing many hats and mostly in fire-fighting mode. This leaves very few resources for any type of process improvement, even when individuals and organizations are receptive to a new way of working. But this means that Agile can have tremendous benefits within the non-profit sector, even if it looks a bit different than the traditional IT-Agile models.
My initial attempt at applying Agile for non-profit began several years ago when I volunteered to help an organization with their strategic planning efforts. Having already been a volunteer in other areas, I was able to reach out to one of the leaders on their volunteer board to better understand their current planning and implementation process.