This require Dot Net Core 2.1 to be installed. 
The distribution uses a Portable version of the Dot Net Core runtime, and is not platform specific.

Contains the following. ( No IRDB_QUERY yet ).

irdbLoad
dotNet irdbLoad.dll params

irdbImport
dotnet irdbImportCore.dll yourimpfile.imp

Windows Service - will probably only run correctly on windows
dotnet irdbServerCore.dll irdb.ini

Simple irdbServer Console app
dotnet irdbServerConsoleCore.dll irdb.ini