Hello Vasilii. In addition to Hartmut’s recommendation to imitate, there also is a manual section; run
info "(guix)Source Tree Structure" or visit https://guix.gnu.org/manual/devel/en/html_node/Source-Tree-Structure.html explaining what guix/build/…-build-system are: (guix build gnu-build-system) (guix build cmake-build-system) (guix build pyproject-build-system) Implementation of build systems, and in particular definition of their build phases (see Build Phases). Regards, Florian
