Duckduckgo for [blueprint build system] returns https://github.com/google/blueprint https://github.com/google/blueprint as the first hit, so I think it's that.

Duckduckgo for [blueprint build system] returns https://github.com/google/blueprint https://github.com/google/blueprint as the first hit, so I think it's that. Edit: Google, for me, doesn't return that on the first page, but the first result is https://opensource.google.com/projects/blueprint https://opensource.google.com/projects/blueprint which links to it.