Copyright notices embedded in the bundled, locally served font files:

barlow-condensed-600.ttf
Copyright 2017 The Barlow Project Authors (https://github.com/jpt/barlow)

barlow-condensed-700.ttf
Copyright 2017 The Barlow Project Authors (https://github.com/jpt/barlow)

manrope-400.ttf
Copyright 2019 The Manrope Project Authors (https://github.com/sharanda/manrope)

manrope-500.ttf
Copyright 2019 The Manrope Project Authors (https://github.com/sharanda/manrope)

manrope-600.ttf
Copyright 2019 The Manrope Project Authors (https://github.com/sharanda/manrope)

manrope-700.ttf
Copyright 2019 The Manrope Project Authors (https://github.com/sharanda/manrope)

The fonts are distributed under the SIL Open Font License, Version 1.1.
See BarlowCondensed-OFL.txt and Manrope-OFL.txt in this directory.