Checking that the directions on the websites are good:

sudo apt-key adv --keyserver <http://keyserver.ubuntu.com|keyserver.ubuntu.com> --recv-keys 1484120AC4E9F8A1A577AEEE97A80C63C9D8B80B
sudo add-apt-repository "deb [arch=amd64] <https://osquery-packages.s3.amazonaws.com/deb> deb main"
sudo apt-get update
sudo apt-get install osquery

now I will look into the older per-distro repos