looks like it can't quite handle glyphs files yet, tho i'd be VERY excited if you ever get that to work!

> ./target/release/gerb
This Glyphs source was generated with an outdated version of Glyphs. The resulting UFOs may be incorrect.
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', src/glyphs.rs:932:35
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fish: Job 1, './target/release/gerb' terminated by signal SIGSEGV (Address boundary error)

the "outdated version" comment is incorrect: this file was saved with the most recent glyphs app.

i think it's shelling out to run a python script, and whatever the python script generates (the "ufo" folder?) violates some assumptions gerb is making.

i'll attach the glyphs file in case that's helpful.