@Anonymous There aren't any specific prereqs on the Azure DevOps server side, but there are some expectations for the build agents the tasks run on:
- Windows OS, can be either server or client SKU; should be a recent OS version
- .NET Classic 4.6/4.7/4.8, i.e. the 4.x that is default on most Windows10 installs; the C# binaries used in the PS modules and nuget packages have been compiled with .NET Classic 4.62 since that's what the CRM SDKs are compiled with
- PowerShell Desktop 5.1 (note: no PS Core support!)
- agent needs anonymous access to powershellgallery.org, nuget.org and any urls those might redirect a request
- agent needs access to the CDS environment API endpoints and its associated AAD
- if you also run e.g. msbuild tasks to build .cdsproj, those builds will likely also require VS2019 or similar on the agent
