Good to see further development in this space. Would be interesting to see how it compares to Decap CMS https://decapcms.org/ and Static CMS https://www.staticcms.org/
Me personally I'd like to see something that supports easily creating and using different types of objects besides pages (such as: events, books, recipes, etc.), like content types and fields and views in wordpress or drupal, ideally aligned with schema.org like https://www.drupal.org/project/schemadotorg I think Hugo might support content types in YAML or something.