is there an open source solution in this space? never knew this was a medium I’d want to explore until reading about this sunset

broadly speaking the term I think is ‘projection mapping’. You can find people hacking together stuff using a webcam + cheap projector

• https://hackaday.com/tag/projection-mapping/
• https://paperprograms.org/ by @JP Posma
• Dynamicland.org of course but its not source available / its embedded in their physical space