Note that Ruby2D aims to run on both ruby and mruby: > Use a subset of Ruby that works everywhere. Ruby 2D applications are, of course, written in Ruby. Some u

Note that Ruby2D aims to run on both ruby and mruby: > Use a subset of Ruby that works everywhere. Ruby 2D applications are, of course, written in Ruby. Some users may choose to harness the full power of the language, standard library, and ecosystem of gems by writing interpreted apps targeting the standard implementation, MRI. Others may want to target the web via WebAssembly, mobile devices, or build native desktop applications, all which make use of a different Ruby implementation called mruby. Ruby 2D aims to support all of these use cases, even with the same app codebase. Your contribution must support a subset of Ruby that is compatible with and behaves similarly across MRI/CRuby and mruby. [0]: https://github.com/ruby2d/ruby2d#technical-contributions https://github.com/ruby2d/ruby2d#technical-contributions