OBS Streaming
Green Screen
Use preview and alpha wand.
https://savageuniversal.com/products/green-screens-digital-backgrounds/green-screen-software/
Record Video
OBS Streaming
Raspberry Pi Media server.
Portable Web Site
https://www.youtube.com/watch?v=jKgM18lOsr4
surround audio obs
obs control pad
Green Screen
https://www.youtube.com/watch?v=Q086hifySGk
https://www.youtube.com/watch?v=DYBO4S9FQKI