Nor f.lux, the warm light software that got Sherlocked by every major OS.

https://justgetflux.com/

Nor the Flux Capacitor from Back to the Future.

Nor the famed Good Will Hunting and Argo actor and director, Ben Afflux

Nor the Cartoon Network show (and later movie) Aeon Flux.

I think it originally aired on MTV.

Nor the streaming service Net Flux

Nor the continuous delivery K8s tool. https://fluxcd.io/

Man that’s a blast from the past; used to be one of my fav apps.