{
  repository(name: "nixpkgs", owner: "NixOS") {
    issue(number: 90746) {
      timelineItems(first: 10) {
        nodes {
          ... on CrossReferencedEvent {
            source {
              ... on Issue {
                url
              }
              ... on PullRequest {
                url
              }
            }
          }
        }
      }
    }
  }
}