[aplanas]

That is a key area too. I know that most of the distros are working in that direction[1], and in the case of Fedora, openSUSE or Debian they are reaching high level of reproducibility.

Those distributions are making huge efforts in keeping a core that is 100% reproducible, working upstream to fix issues, and providing reporting and tests tools to detect regressions (for example [2])

This is why a fork is usually a bad approach.

[1] https://reproducible-builds.org/who/projects/ [2] https://en.opensuse.org/openSUSE:Reproducible_Builds