Another option would be not to add a parameter for this, but to use dotnet nuget list source [--format short], take the first enabled source, parse the NuGet index.json, and fetch the first SearchQueryService.
The default scenario would look like:

1. dotnet nuget list source → https://api.nuget.org/v3/index.json
2. fetch('https://api.nuget.org/v3/index.json') →

   { 
     "resources": [
       {
         "@id": "https://azuresearch-usnc.nuget.org/query",
         "@type": "SearchQueryService",
         "comment": "Query endpoint of NuGet Search service (primary)"
       },
       ...
     ],
     ...
   }

3. Use https://azuresearch-usnc.nuget.org/query

Let me know if you prefer this. If so, I'll make another PR.

please use rebase onto main instead of merging main into your branch, ew keep the linear history for PRs

Another option would be not to add a parameter for this, but to use dotnet nuget list source [--format short], take the first enabled source, parse the NuGet index.json, and fetch the first SearchQueryService. The default scenario would look like:

1. dotnet nuget list source → https://api.nuget.org/v3/index.json
2. fetch('https://api.nuget.org/v3/index.json') →

   { 
     "resources": [
       {
         "@id": "https://azuresearch-usnc.nuget.org/query",
         "@type": "SearchQueryService",
         "comment": "Query endpoint of NuGet Search service (primary)"
       },
       ...
     ],
     ...
   }

3. Use https://azuresearch-usnc.nuget.org/query

Let me know if you prefer this. If so, I'll make another PR.

that seems like and idea, meaning we do not add a new parameter which we need to maintain, but do this internally. Give it a try and let's see how this ends up

Another option would be not to add a parameter for this, but to use dotnet nuget list source [--format short], take the first enabled source, parse the NuGet index.json, and fetch the first SearchQueryService. The default scenario would look like:

1. dotnet nuget list source → https://api.nuget.org/v3/index.json
2. fetch('https://api.nuget.org/v3/index.json') →

   { 
     "resources": [
       {
         "@id": "https://azuresearch-usnc.nuget.org/query",
         "@type": "SearchQueryService",
         "comment": "Query endpoint of NuGet Search service (primary)"
       },
       ...
     ],
     ...
   }

3. Use https://azuresearch-usnc.nuget.org/query

Let me know if you prefer this. If so, I'll make another PR.

that seems like and idea, meaning we do not add a new parameter which we need to maintain, but do this internally. Give it a try and let's see how this ends up

I've created #1664 as an alternative to this PR, which turned out a lot cleaner in my opinion. I'll treat this one as superseded and close it for now.