does it work in bun?

[capaj]

is bree compatible with bun?

[mrx-arafat]

Yes—for basic worker jobs, I reproduced Bree 9.2.9 running under Bun 1.4.3 on Linux x86_64, including workerData, messages and completion.

Bree constructs a worker directly, rather than launching a separate Node executable. My worker reported Bun.

In an empty directory, run:

npm install --save-exact bree@9.2.9 bun@1.4.3

Save these two files in that directory.

job.cjs:

const { parentPort, workerData } = require('node:worker_threads');
parentPort.postMessage({value: workerData.value, runtime: process.versions.bun ? 'bun' : 'node'});
parentPort.postMessage('done');

run.cjs:

const Bree = require('bree');
const path = require('node:path');
const bree = new Bree({
  root: false,
  logger: false,
  jobs: [{ name: 'probe', path: path.join(__dirname, 'job.cjs'),
    worker: { workerData: { value: 42 } } }],
  workerMessageHandler({ message }) {
    if (message !== 'done') console.log(message);
  }
});
bree.on('worker deleted', name => console.log('completed:', name));
bree.start().catch(console.error);

I ran the locally installed Bun:

$ npx --no-install bun run.cjs
{
  value: 42,
  runtime: "bun",
}
completed: probe

Bree terminates and removes the worker on 'done'. I haven't tested cron schedules, graceful shutdown, TypeScript jobs or your workload. To confirm this example works, look for value: 42, runtime: "bun", then completed: probe.

[titanism]

We do not use bun nor deno.