https://visual.sfu-kras.ru
Visual is a tool for creating interactive educational and scientific models. The project aims to disseminate knowledge and teach programming.

https://blackbox.oberon.org
BlackBox Component Builder is an open-source IDE for Component Pascal programming language. BlackBox consists of modules, compiler and environment for their work over OS. It is also providing facilities for interface design and modules extension. Component Pascal (BlackBox Oberon) is strongly typed and module based. The compiler is very fast. Each module is a unit of compilation and execution. Modules are brought into memory in order of import when required. There is no need for 'headers'. Symbol files are automatically generated by the compiler for exported items. Data structures are automatically garbage collected when no longer referenced. The framework comes with a complete set of documentation for framework modules.