I heard about mixxx back in 2013 from someone who managed to make his Linux lighter ( replacing the kernel or something? ). Then he compiled mixxx without all the unnecessary functions he didn't want. He managed to lower down latency response to 4ms or maybe below I remember. His DJ sets where amazing!
https://waterfull.netlify.app/ this is a SSR/pwa I'm making. The purpose is to add and find water sources or taps. To help get free access to water to hikers, cyclists and travelers.