Hi @drewmerkle, unfortunately this was not our intention but rather a choice made for us. We build Emby Server with .NET Core,. and .NET Core requires MacOS 10.13+:
https://docs.microsoft.com/en-us/dotnet/core/install/dependencies?pivots=os-macos&tabs=netcore31
If they were to revise their minimum supported version, then we would be able to do so as well. Apologies for the inconvenience.