I was thinking we'd do something similar to this test:

        mkWebTest =
          lang: suffix:
          mkDotnetTest {
            name = "web-${suffix}";
            template = "web";
            inherit lang;
            build = "dotnet publish -o $out/bin";
            runtime = finalAttrs.finalPackage.aspnetcore;
...

but using a different template like you mentioned earlier (template is just the arg for dotnet new).

(pkgs/development/compilers/dotnet/wrapper.nix)