I've also removed PrivateTmp = true because this is implied by dynamic user.
I've left ProtectHome = true because I believe this is stronger than
ProtectHome = "read-only" which DynamicUser implies.
Basic hardening
- Run as nobody:nogroup with a private /tmp, /home & /run/user
- Create working directory under /run (hoogle insists on writing to cwd
and otherwise returns "something went wrong" to every query)
Option tweaks
- Provide a default for the haskellPackage option
- Set text values for defaults
- Move hoogleEnv to the top-level & simplify it
