* Fix documentation example for `jupyter.kernels`
The environment variable loading fails when using the example for `kernels` config, due to incorrect syntax. The error being something along the lines of `path not found`.
Thanks to @Infinisil and @layus for suggestions.
most likely, people enabling the lorri module also want to use it,
without explicitly having to add it to users.users.<username>.packages.
cc @curiousleo @Profpatsch
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
