Some random links. Needs research.
- https://lists.debian.org/debian-devel/2019/02/msg00383.html
- https://lists.debian.org/debian-devel/2019/02/threads.html#00327
- http://fish.mirbsd.org/~tg/Debs/dists/sid/wtf/Pkgs/early-rng-init-tools/
- https://pkgs.org/download/early-rng-init-tools
- https://evolvis.org/plugins/scmgit/cgi-bin/gitweb.cgi?p=alioth/early-rng-init-tools.git;a=tree