[_g6sn]

(I'll address the parallel build part in addition to what has been said, but please respond to my email address/sourcehut mailing list for any further communication on these issues).

I should have communicated this more clearly in README. Kefir requires relatively recent GNU Make versions (see dist/Dockerfile for full and complete set of dependencies), as it basically uses make for all project lifecycle tasks. I remember there were some parallel build issues with older GNU Make versions. This could be an issue.