150 × as fast!
https://github.com/fonttools/fontspector
For those of us using fontbakery for font testing, it is worth noting that fontspector is nearly ready. Basically the same app, ported from Python to Rust by nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpq2crs36snwygk3c85pd9d2hwpjk4hfzap8qzjz35get3ys5hrth5sl2cnga (nprofile…cnga) In my first rough test it is ~ 150 × as fast; a small font set that took about 15 minutes to run fontbakery on, now takes under 6 seconds for fontspector with the same tests.