@swc/plugin-swc-confidential

{
  "jsc": {
    "experimental": {
      "plugins": ["@swc/plugin-swc-confidential", {
        // Possible values:
        //
        // AES-128
        // AES-192
        // AES-256
        algorithm: "AES-256",
        encryptionKey: process.env.FLAGS_SECRET,
        prefix: "secure:"
      }]
    }
  }
}