LINK FOR LINUX
https://keybase.io/docs/the_app/install_linux
32-bit Ubuntu/Debian/etc.
curl --remote-name https://prerelease.keybase.io/keybase_i386.deb
sudo apt install ./keybase_i386.deb
run_keybase -g # run without GUI; it is not supported on 32-bit Linux
LINK FOR WINDOWS
https://keybase.io/docs/the_app/install_windows