The programming language is made in JavaScript, the syntax is Russian, all the code is in json format
Also have:
RSML — RussiaScript Markup Language
SLRS — Language Styles RussiaScript
Article about RussiaScript: https://shaman2016scratch.github.io/shaman2016.github.io/wiki/RussiaScript/
Documentation: https://shaman2016scratch.github.io/Docs/RussiaScript/