Kumir is a popular school programming language in Russia. It allows - compilation into native code via LLVM - creation of web sites and more.
forum thread for discussions: https://forums.gentoo.org/viewtopic-p-8611236.html
I suggest to develop an ebuild in an overlay first. Have a look at guru. Seems the make files need to be overhauled first. https://github.com/a-a-maly/kumir2/issues/1 https://repology.org/project/kumir2/versions
*** This bug has been marked as a duplicate of bug 289554 ***