Peaceful Notes: started as an experiment to fix inline text formatting UX and turned into a mini-product.
LLM-based scene editing: probably the first experiment of its kind, from early 2023.
The assistant detects formatting boundaries, lets you cross the boundary without skipping over a character, and keeps you updated about the current formatting.
Object manipulation with motion controls: sensor fusion allows for intuitive 6 DoF spatial manipulation using cheap game controllers.