Catalyst Aerospace Technologies released C-ATLAS - a collaborative web-application to customize flight control and autonomy systems without expensive conventional software development processes. C-ATLAS users are able to design algorithms in visual mode using well-known graphical engineering notations like flow diagrams, state machine diagrams, system-level hardware schematics, etc. We provide basic functions like programming of guidance, navigation, and control for free as well as a capability to export your project to open-source autopilot-compatible firmware.
If you are interested in trying C-ATLAS yourself contact us!

Catalyst Aerospace Technologies website: https://ctlst.tech