You can run a virtualized modern macOS or Windows 10 inside Snow Leopard using VirtualBox 4.3 (the last version to support 10.6.8) or VMware Fusion 5.
Steps:
Note: Traktor Pro 3 (modern) requires 10.12 or later. serato dj lite for mac os x 10.6.8
If you absolutely need a modern version of Serato DJ Lite (e.g., to use a new controller like the Numark Mixtrack Pro FX or Pioneer DJ DDJ-200), but you’re stuck on a Mac that only runs 10.6.8, consider this hack. You can run a virtualized modern macOS or