Awesome problem to solve (been looking for something similar without having to use three different tools), but there's no tutorial on how to use this or what it can do. Does it assume I've already assigned the glyphs in another piece of software or will it let me assign to characters if it can't tell?

It'd also be nice if there was a live specimen preview so I could adjust the ascent/descent visually. Also wish the weight was a drop-down that showed 100-900 and where the typical weights fall in e.g. 100 (Hairline)/ 400 (Regular) / 900 (Black).

Obviously you guys just built this thing two weekends ago, so those are just my two cents :)