You don't need a "platform", you need a Fediverse indexer + search engine.

This is the output from https://browser.pub/https://communick.news/post/2832222:

{
  "@context": [
    "https://join-lemmy.org/context.json",
    "https://www.w3.org/ns/activitystreams"
  ],
  "type": "Page",
  "id": "https://communick.news/post/2832222",
  "attributedTo": "https://communick.news/u/rglullis",
  "to": [
    "https://forum.wedistribute.org/category/5",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "name": "Is NodeBB's interoperability with Lemmy only for push-based messages?",
  "cc": [],
  "content": "<p>Hello from Lemmy!</p>\n<p>This message is both a test and a real question: I managed to subscribe to the NodeBB group, but I was <em>not</em> able to pull any conversation from there.</p>\n<p>Maybe it’s because Lemmy expects posts to be <code>Page</code> objects and NodeBB seem to be representing its topics as <code>OrderedCollections</code>?</p>\n<p>I will post this and then send a followup comment with the output from browser.pub</p>\n",
  "mediaType": "text/html",
  "source": {
    "content": "Hello from Lemmy!\n\nThis message is both a test and a real question: I managed to subscribe to the NodeBB group, but I was *not* able to pull any conversation from there.\n\nMaybe it's because Lemmy expects posts to be `Page` objects and NodeBB seem to be representing its topics as `OrderedCollections`?\n\nI will post this and then send a followup comment with the output from browser.pub",
    "mediaType": "text/markdown"
  },
  "attachment": [],
  "sensitive": false,
  "published": "2025-03-29T14:02:30.621508Z",
  "language": {
    "identifier": "en",
    "name": "English"
  },
  "audience": "https://forum.wedistribute.org/category/5",
  "tag": [
    {
      "href": "https://communick.news/post/2832222",
      "name": "#fediverse",
      "type": "Hashtag"
    }
  ]
}

Hello from Lemmy!

This message is both a test and a real question: I managed to subscribe to the NodeBB group, but I was not able to pull any conversation from there.

Maybe it's because Lemmy expects posts to be Page objects and NodeBB seem to be representing its topics as OrderedCollections?

I will post this and then send a followup comment with the output from browser.pub