Don’t bother. Audio latency in a VM on a Core 2 Duo Mac will be unplayable for DJing.
Keywords used: Serato DJ Lite for Mac OS X 10.6.8, Serato DJ Intro, Scratch Live Snow Leopard, DJ software legacy Mac, Snow Leopard DJ compatibility, Traktor Pro 2 10.6.8, Mixxx Snow Leopard. serato dj lite for mac os x 10.6.8
If you download the latest installer from Serato.com and try to run it on 10.6.8, you will receive an immediate error: "This application requires macOS 10.13 or later." Don’t bother
Therefore, you cannot run in its modern form. No workaround will change this, because the binary code is incompatible with Snow Leopard’s kernel. Wait—Was There an Older Version That Works? Yes, but not under the name "Lite." If you download the latest installer from Serato
Can you run modern DJ software on a vintage Mac from 2009? The short answer is complicated. The long answer requires a deep dive into operating system limitations, legacy software, and hardware drivers.