You have a project in Azure DevOps that uses packages from multiple public feeds.

Step 1: Create a NuGet package.

NuGet and Maven are public package managers that support multiple feeds.

Step 2: Create an Azure Artifacts feed that uses upstream sources

If you want to use packages from multiple feeds, use upstream sources to bring packages from multiple feeds together into a single feed.

Step 3: Create a Micrtosoft Visual Studio project that includes all the packages

Consume NuGet packages from upstream sources: Now you can open Visual Studio and install packages from the upstream sources you just configured.