Compatibility layer (API) to run the same code on Node.js and Bun (or other) runtime?

[lukasMega]

Hello,
Is there something like a compatibility layer (or library) to allow running the same code (primarily for Node.js) to be compatible with Bun specific API?

quick example:

To run a TCP server -> in Node.js:

import net from 'node:net';
const server = net.createServer((c) => {
  // 'connection' listener.
  console.log('client connected');
  c.on('end', () => {
    console.log('client disconnected');
  });
  c.write('hello\r\n');
  c.pipe(c);
});
server.on('error', (err) => {
  throw err;
});
server.listen(8124, () => {
  console.log('server bound');
});

... -> in Bun:

Bun.listen({
  hostname: "localhost",
  port: 8080,
  socket: {
    data(socket, data) {}, // message received from client
    open(socket) {}, // socket opened
    close(socket) {}, // socket closed
    drain(socket) {}, // socket ready for more data
    error(socket, error) {}, // error handler
  },
});

It would be great to have the Node.js-style code as is. When it is executed in the Bun runtime, it will be executed with Bun-specific APIs.

Apologize if there is already solution, I didn't find it yet.

[kravetsone]

Why not using just node api?

[lukasMega]

If it's the same, why not