I am no expert on computers, but what obstacle is that when an Informatics teacher is needed? I do not know the Bible by heart, but why should that stop me from correcting Bible courses?* I do not know much fulfulde, but since when was that a reason not to "converse"?
Finding myself in situations where I do things I think are beyond my capabilities is funny. I learn to make the best use of what you have. If you have a small amount of something, you use that something, you share it. Many people having a small amount of knowledge, money or food is better than someone having "a lot" and the lot being at a lack of almost everything, n'est-ce pas (don't you think)?
*Do not worry, I had the solution at hand :)