I'm deploying a node js project, and am having issues getting it to shut down gracefully.

My start command is invoking my transpiled src directly. I'm using the nixpack defaults.
"start": "node ./dist/index.js",

And I'm listening for the `SIGTERM` event

process.on('SIGTERM', async () => {

logger.info('SIGTERM received, shutting down');

await applicationWillShutdown(container);

httpServer.close(() => {

logger.info('HTTP server closed');

});

});

httpServer.listen(PORT, async () => {

await applicationDidStart(container);

logger.info(`Started server on ${PORT} `);

});

But I get the following on container shutdown
npm error path /app

npm error command failed

npm error signal SIGTERM

npm error command sh -c node ./dist/index.js

npm error A complete log of this run can be found in: /root/.npm/_logs/2025-02-04T13_58_24_084Z-debug-0.log

npm warn config production Use --omit=dev instead.

The `SIGTERM received, shutting down` message is never sent.

Any idea on what I could be missing? The `/app` directory in the error makes me think it could be something inside the nixpack that either don't understand or haven't configured.

Any help would be appreciated.
Thanks

Small sidenote, the "Learn more" link below the "Make thread visible to railway team only" text on the form that you use to create these threads goes to google.com. Guessing that one slipped by QA