Are there any plans to finish this? It could be super useful for me, however in its current state it's lacking some key features (and I don't have any clue how to add them myself). I know you haven't been active for quite some time, but it would be great to see this completed!
This might be a lot to ask, but:
The PDF exporter would be great
And a super simple interface. It wouldn't have to be fancy, I'm not saying customizeable cheatsheets, but something where you could edit each field after you made it and maybe see a live preview of the sheet?
That might be a lot to ask for, but I could see myself getting a lot of use out of this if it had those.