Haveged [is mostly obsolete](https://github.com/jirka-h/haveged/issues/57) because [Linux generates Jitter entropy itself](https://lwn.net/Articles/802360/) (since 5.4) and [made `/dev/random` non-blocking](https://lwn.net/Articles/808575/) (since 5.6). See https://github.com/jirka-h/haveged for an explanation of the cases where haveged is still useful. Are we in 1 of these cases? Prior art: tails/tails!53