I don't know, but in case of a project such as this one, how do you imagine other people' contribution to the project exactly ? Since these roles are not paid obviously and "a couple of hours weekly" is not, in your words, justified for a developer role, then how do you really expect that this project will move on? Guys skilled enough to fix things and with the ability to literally donate their time to this cause, will most definitelly not do it for tens of hours every week for free just because you expect them to do so. I would even dare to say, that you are not left with many options besides
