See

• https://doc.sagemath.org/html/en/developer/index.html#packaging-third-party-code
• https://doc.sagemath.org/html/en/developer/index.html#testing-on-multiple-platforms
• https://trac.sagemath.org/wiki/Upstream

This task ticket is linked from ​https://github.com/sagemath/sage/wiki/Mathematical-Software-Landscape

Component: distribution

Issue created by migration from https://trac.sagemath.org/ticket/33774