Notch is a powerful enviroment to create amazing motion graphics and interactive VFX in realtime, but how can you take this one step further?
VFX

It is pretty common to be on a last-minute gig and need to drum up a bunch of visual effects and looks to fill time during your event or performance or similar. Building these yourself may be the ideal option, but it probably isn’t realistic given the budget and amount of time before the event.
Quick TouchDesigner Effects

All the 120+ screens you see in Alien Covenant were simultaneously driven on-set by Soma CG's application MOTHER, made entirely in TouchDesigner.
Soma CG Drives All Screen Visuals On-Set for Ridley Scott's Alien Covenant

We first became aquainted with Vincent Houzé through the very compelling and often amusing videos he shares of his artistic and R&D experiments. Above: My first steps with Arduino and a little proof of concept.
Vincent Houzé on Rapid-Prototyping and Working in Real Time

https://www.youtube.com/watch?v=4FFuZpDE6QE false "We relied heavily on TouchDesigner after an initial test period in Leavsden Studios in the fall of 2010, and developed a very flexible and powerful realtime pipeline to drive some of the major aspects of shooting the film.
Gravity: TouchDesigner Works in Zero-G

Ian McDonnell and Dara Smith make up Dublin-based Lakker who since the early 2000s have been dishing out deep, dark, bass-loaded electronic music, tracks that have graced the decks of those with a tendency to tip the scales on the spectrum of "dark" and "heavy" - Aphex Twin and Surgeon for instance.
Direct From Dublin: Lakker's Live AV for 'Containing a Thousand'

ACO VIRTUAL is a ground-breaking, world-first interactive experience that enables new audiences to get up-close and personal to the Australian Chamber Orchestra (ACO), to appreciate the sounds intimately, to perform a live-mix and to even play along with the musicians.
The Australian Chamber Orchestra goes Virtual with Mod Productions

We were recently taken by surprise by something rather out of the ordinary that challenged our most liberal interpretation of what can be categorized as ‘real’ and certainly as ‘real-time’. The projected image seemed not to be sitting on the surface of the object but rather to be embedded into it.