SQL Server Requirements
KB#1046: Last Updated November 14, 2019
Otter, BuildMaster, and ProGet for Windows all require any supported version of Microsoft SQL Server.
Installation
We recommend installing and configuring SQL Server yourself, but the installer does provide the option of downloading and installing SQL Express for you if you would like to get started quickly and don’t have an existing instance to use.
Visit Microsoft.com for more information on SQL Server Express and to download the lastest versions.