ts-ecosystem | Awesome packages and enhancements to existing OSS projects | Blockchain library

I have two private repositories in the same organization, say repository A and B, both of which are python packages. I have a "GitHub Actions workflow" to test repository B for each PR. However, repository B depends on repository A, so I would need to install it.
I tried following this GitHub document, however, it specifically states

GITHUB_TOKEN cannot install packages from any private repository besides the repository where the action runs.

How do I go about implementing this installation?

I try to learn Github action and packages. So, I create a sample nuget package and successfully created. However I could not use it.

I follow this step;

1. Options > Nuget Package Manager > Package Sources

2. Click add button write organization name and add package source address like that:

3. After that Visual Studio doesn't ask me any credential for this address.

4. If there is no credential, I will expect to an error. And I got it.

   [github] Failed to retrieve metadata from source 'https://nuget.pkg.github.com/[OrganizationName]/query?q=&skip=0&take=26&prerelease=false&semVerLevel=2.0.0'. Response status code does not indicate success: 401 (Unauthorized).

5. Then, I decide to some credential like explained in github documentation.

6. My nuget.config file:

7. However still I get Unauthorized error. And also when I click the error link gettin a message like that:

{"errors":[{"code":"Your token has not been granted the required scopes to execute this query. The 'id' field requires one of the following scopes","message":" ['read:packages'], but your token has only been granted the: [''] scopes. Please modify your token's scopes at: https://github.com/settings/tokens."}]}

but I already have a token with read/write package credential.

1. All that fails and I try to another way. I add credential information to Windows Credential Manager. Eveything still same.

So, how I add and use my private nuget packages?

My organization is just getting started with using github, and we're trying to convert our internally developed dependencies into Github nuget packages from private repos. I first attempted to add our package feed into package sources using Tools | Options | NuGet Package Manager | Package Sources. However I didn't see anywhere to put in credentials, so as I expected, I got nothing but 401's from the Nuget UI.

My next attempt was creating a nuget.config file within my project, as per https://help.github.com/en/packages/using-github-packages-with-your-projects-ecosystem/configuring-dotnet-cli-for-use-with-github-packages. THAT worked like a charm.

However, my aim here is to set up a global package source, for any solution I create, to access these internal dependencies without needing to add that config file to every new project.

So... is there a global nuget.config, or similar that visual studio uses for the nuget UI, that where I can append my private package source?

Thanks.