Sentry,
off until you opt in.

The server uses @sentry/bun (not @sentry/node), the client uses @sentry/nextjs. Initialization is a no-op when SENTRY_DSN is unset, so dev and CI never report — and errors that should page someone go through an explicit captureError helper, not a silent logger call.

No DSN, no reporting

 1  import * as Sentry from '@sentry/bun';
 2  
 3  export const initSentry = (cfg: SentryConfig): boolean => {
 4    if (!cfg.dsn || initialized) return initialized;  // no-op
 5    Sentry.init({
 6      dsn: cfg.dsn,
 7      tracesSampleRate: cfg.tracesSampleRate,
 8    });
 9    initialized = true;
10    return true;
11  };

Configuration reference