public async Task <Response <Capabilities> > Get()
        {
            await using var stream = _fileInfo.CreateReadStream();
            using var streamReader = new StreamReader(stream);
            var json = await streamReader.ReadToEndAsync();

            var capabilities = Capabilities.FromJson(json);

            if (_contextAccessor.HttpContext.User.Identity.IsAuthenticated)
            {
                return(capabilities);
            }

            if (_contextAccessor.HttpContext.Request.Headers.ContainsKey("Authorization"))
            {
                return(IsBearer() ? Response.ForNotAuthorized() : Response.ForError("invalid_authorization"));
            }

            foreach (var supportedFeature in capabilities.SupportedVersions.SelectMany(sv => sv.SupportedFeatures))
            {
                supportedFeature.Restricted = null;
                supportedFeature.Private    = null;
            }

            return(capabilities);
        }