Hey; i've been trying to make a dev environment for jellyfin, and I can't seem to do so(for jellyfin or anything else).
I seem to be running into an error where dotnet cant find the service index:

Unable to load the service index for source https://api.nuget.org/v3/index.json

I have tried to just copy the jellyfin derivation files in nixpkgs, only changing the source to be the current folder, and it seems to still be happening. Is there anything else I need to be doing to set this up?

Running the fetch-deps attribute gets me this for all of the deps:

 Retrying 'FindPackagesByIdAsync' for source 'https://api.nuget.org/v3-flatcontainer/seriloganalyzer/index.json'.
  Request headers must contain only ASCII characters.

In reply to @daniel:nopemail.org
I'm experiencing the same issue in general, seems to be a regression. purepani

In reply to @vengmark2:matrix.org
What is the process for updating .NET modules, including their dependencies? I tried setting passthru.updateScript = nix-update-script { };, which makes it possible to run nix-shell maintainers/scripts/update.nix --argstr package NAME, but nix-build --attr NAME.passthru.updateScript fails with "expression does not evaluate to a derivation". And any time I try to run $(nix-build --attr NAME.passthru.fetch-deps) it fails to access anything on the network with "error NU1301: Unable to load the service index for source https://api.nuget.org/v3/index.json.".

In reply to @purepani:matrix.org
See the posted above.
Basically, the name for nixos 24.11 (Vicuña) contains a non-ascii character, and dotnet doesn't like that(in particular, the azure sdk)
See this issue for a workaround: https://github.com/NixOS/nixpkgs/issues/315574

In reply to @purepani:matrix.org
Lookgs like you can also just set AZURE_TELEMETRY_DISABLED=1 as an environment variable

In reply to @vengmark2:matrix.org
export AZURE_TELEMETRY_DISABLED=1 && nix-shell maintainers/scripts/update.nix --argstr package NAME results in "cp: cannot stat '/tmp/deps-nexus-mods-app-KbN4wW/home/.nuget/packages/*': No such file or directory"

In reply to @purepani:matrix.org
I am not sure what this error is, but I think it's a different issue. That being said, I don't remember if nix-shell passes environement variables through by default or not, so maybe try updating the package update script to expose that environment variable?