Ukrainian Ruby developer (zverok). Has been doing Ruby for ~15 years; avoided Rails for his first 12 years, coming to Ruby from C++ as a programming-language geek rather than from PHP or Rails. For three years worked with the Scientific Ruby community trying to bring scientific computing expressiveness to Ruby, inspired by Stephen Wolfram's Wolfram Language. Ran several Google Summer of Code projects, including work with Indian students. Speaker at wroclove.rb 2019, including a short lightning talk on scientific Ruby and the main-stage talk 'Towards the post framework future'.