FastFPC

Magento 2's improved FPC and a Varnish replacement are used for the Magento SaaS solution when high performance and scaling are needed. No longer requires outdated Adobe's official Varnish approach. Implementation using next languages: PHP (default), Node.js, Go. Maintained by Genaker on GitHub, where it has earned 88 stars from the community.

It's actively developed around magento, adobe, varnish, and is a solid reference for anyone building with these tools.