A few Linux tools and useful scripts. I highly recommend checking out ubuntu-only/setup.sh.
Descriptions of the contents of the folders are found in a README.md in each folder.
For detailed info on each program, use GitHub commit info, the man pages, and Google search.
Ubuntu users can use everything except the "arch-only" folder.
Arch users can use everything except the "ubuntu-only" folder.
Again, the most important script in this repo is ubuntu-only/setup.sh. You should use it!