Spectral fonts build notes
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0. Requirements

- fontbakery: https://github.com/googlefonts/fontbakery
- fontmake: https://github.com/googlei18n/fontmake
- fonttools: https://github.com/fonttools/fonttools
- sfnt2woff-zopfli: https://github.com/bramstein/sfnt2woff-zopfli
- ttfautohint: https://www.freetype.org/ttfautohint/
- woff2_compress: https://github.com/google/woff2
- https://github.com/twardoch/fonttools-utils/tree/master/pyftfeatfreeze

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1. Interpolate instances and build TTF files
   
$ cd sources
$ bash generate.sh

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2. Finish TTFs
   
$ cd instance_ttf
$ bash post_generate_ttf.sh

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3. Copy and finish TTFs for web use

$ cd my/webfonts-folder
$ bash post_generate_web.sh

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4. Finish TTFs for desktop use

$ cd instance_ttf
$ bash post_generate_desktop.sh

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5. Create webfonts
   
$ cd my/webfonts-folder
$ bash generate_webfonts.sh

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6. Create SC family

$ cd my/sc-folder
$ bash post_generate_sc_family.sh

