Is there an existing issue for this?

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Is your feature request related to a problem? Please describe the problem.

Today customers targeting self-contained applications download the runtime packs at build time. This prevents offline scenarios with Visual Studio. This also impacts internal customers that install pre-release builds.

Describe the solution you'd like

Expand the existing runtime pack infrastructure used in the runtime repo today to the aspnet and windows desktop runtime packs.

• Do similar authoring to what exists in the runtime repo
  • https://github.com/dotnet/runtime/blob/78f5a9839ac7d49a3cfaa6f4015a90b1cc846fa1/src/mono/nuget/Microsoft.NET.Workload.Mono.Toolchain.Manifest/WorkloadManifest.json.in#L131
• provide better descriptions than what is in the runtime repo
• Update the VS setupauthoring (see mail thread for link to existing authoring) to add the runtime pack as an optional component
• Add the baseline manifest into the installer repo
  • https://github.com/dotnet/installer/blob/main/src/redist/targets/BundledManifests.targets

Drawbacks are that this could impact servicing codeflow in the future. The recommendation is to only produce these for windows versions that VS ships on (the idea being we still download for cross-compiling but for the RID that matches the OS, we can provide that to VS).

See email or ask marcpop for more details

Additional context

No response