routed creates a number of files in /run/shm and leaves them lying around when it exits. This means that routed cannot be run as a different user. When trying, it will exit with the following message:

[fatal error] exception: Permission denied

If the stale files can't be cleared it would be nice to have at least a more explicit error message, so that it is possible to clear the files by hand in the rare case where one changes the user.