For a Mac running OS X 10.6.8, you cannot use the current (versions 1.0 and higher) because these were released after Serato dropped support for older operating systems.
Serato DJ Lite is a popular DJ software that allows users to mix and scratch digital music files. The software is compatible with various operating systems, including Mac OS X. serato dj lite for mac os x 10.6.8
Running Serato DJ Lite on Mac OS X 10.6.8 (Snow Leopard) requires using older, archived versions of the software, as modern releases only support 64-bit systems starting from macOS 10.14 or later. Compatibility & Versioning For a Mac running OS X 10
If you are committed to using a Snow Leopard machine, these controllers are historically known for their compatibility with Serato DJ Intro: Mixtrack Pro, Mixtrack Quad. Pioneer DJ: DDJ-ERGO, DDJ-WeGO. Vestax: Typhoon, VCI-100 MkII. Denon: MC2000. Why Stay on OS X 10.6.8? Running Serato DJ Lite on Mac OS X 10