- Re-add original behaviour now I fixed the real issue for missing
logs. Keep the build/run pipeline full as soon as possible.
- Added -s, --system. System build mode. To only build pkgs that
are installed manually in your system.
- Added long options; sync usage.
- Restrict max jobs to ncores; there are issues with shared data,
and until they are resolved this is the only way to make it work
reliably.