https://css-blocks.com/
https://github.com/linkedin/css-blocks

https://github.com/linkedin/opticss
https://github.com/linkedin/opticss/blob/master/docs/ARCHITECTURE.md

https://css-blocks.com/api/

articles
2018
https://engineering.linkedin.com/blog/2018/04/css-at-scale--linkedins-new-open-source-projects-take-on-stylesh