BIMopen

BIMopen is an independent BIM modeller written in Rust. It runs on Linux, Windows, in the browser and on Android, with the same model and the same interface. Here you will find short videos showing what the program does today: walls, floors, roofs, plan, section and 3D views, sun and shadows, sheets and schedules. Every clip is rendered by the program itself, with no retouching.

BIMopen is in early alpha: it is a test version, not suited to real projects. Downloads, manual and release notes on the site:
https://bimopen.it/?lang=en