Schéma is a multipurpose framework and visual authoring tool aimed at AV installations - I call it an Integrated Creative Environment.
It offers fast ways to setup a scene, behaviors and interactions of individual elements and then allows to experiment with everything live. The interface combines elements from visual programming, VJing, light console tools with a number of innovations such as visual controller feedback. In general I am aiming for a game like feel where you can get lost in the creative experience.
I have been working on this tool since 2019. It has been used in a number of public projects - installations, clubs, performances and countless small experiments, see https://schema.scenic.tools/gallery/ for a taste.
The tool is open source https://github.com/domjancik/scnq-schema and built from the ground up using vvvv gamma (VL) - it is a visual programming tool, itself made in a visual programming tool!