ember-fastboot
Workers can't recover from no `distPath`.
Workers are started just once:
https://github.com/ember-fastboot/fastboot-app-server/blob/a5d194e4f32a06c9af42a35eefb242878d868ec2/src/fastboot-app-server.js#L53
this.middleware is only set here:
https://github.com/ember-fastboot/fastboot-app-server/blob/a5d194e4f32a06c9af42a35eefb242878d868ec2/src/worker.js#L45-L49
And then you're stuck with that middleware forever:
https://github.com/ember-fastboot/fastboot-app-server/blob/a5d194e4f32a06c9af42a35eefb242878d868ec2/src/worker.js#L87
For bonus points, fastbootMiddleware here:
https://github.com/ember-fastboot/fastboot-app-server/blob/a5d194e4f32a06c9af42a35eefb242878d868ec2/src/express-http-server.js#L26
...is therefore possibly not a FastBoot middleware which is a super troll since we expose httpServer as a downstream API.
