How do these Nostr GitHub replacements work?

原始 JSON

{
  "kind": 1,
  "id": "856a90ed695ddfc2fb3df95a3bc7ac6d7070b58013c86125ae4963b0ce09667d",
  "pubkey": "deab79dafa1c2be4b4a6d3aca1357b6caa0b744bf46ad529a5ae464288579e68",
  "created_at": 1780599107,
  "tags": [
    [
      "alt",
      "A short note: How do these Nostr GitHub replacements work? \n\nI'm..."
    ],
    [
      "client",
      "Amethyst"
    ]
  ],
  "content": "How do these Nostr GitHub replacements work? \n\nI'm not keen to push my music piracy app to GitHub 😅🤣",
  "sig": "ca3e6a70646e1f0256a836bb20f67782b095d97bb706d235678a867c2c8600d8ee7c99cd38a91f8305ad300014bc04439b6353539e89bb036ef23a65b0797c7a"
}