I love the work that you’ve done on Fountain Pen Companion (so much so that I did become a pateron).
I’ve recently started buying “extra” nibs, some custom ground. It would be nice to have a way to track “extra” or “spare” nibs, and be able to associate them with a particular pen.
So, like “my pens” and “my inks” you would have “my nibs” and those nibs could be “attached” to a pen, almost like currently inked pairs a pen in my collection with an ink in my collection. Maybe a currently nibbed? (lol)
I could see fields such as “type” i.e. Bock / JoWo / Schmidt etc., “grind” i.e. Architect, Stub, EF, F, M, B, BB, etc., possibly “flow” i.e. wet / dry / etc.