2.0

[dy]

• [x] variable axis: width #15 via designfile
• [x] feature-file with GPOS 8 positioning marks #2
• [x] ~~proper hints without subpixel gaps (psautohint?) #3 ~~ impossible
• [x] all checks passed
• [x] windows-able to install/use #13
• [x] proper handling of clipping #7
• [x] better demo

[dy]

See separate issues.