The Active Oberon evolution started with the Active Object System (AOS) and the Bluebottle window manager; the source code of the last "Current" release can be

The Active Oberon evolution started with the Active Object System (AOS) and the Bluebottle window manager; the source code of the last "Current" release can be accessed e.g. here: https://github.com/OberonSystem3/AOS_Bluebottle_Sources https://github.com/OberonSystem3/AOS_Bluebottle_Sources. If you want to study the source code, you can use this tool: https://github.com/Rochus-Keller/ActiveOberon https://github.com/Rochus-Keller/ActiveOberon.