sudo apt-add-repository https://dl.winehq.org/wine-builds/ubuntu/

sudo add-apt-repository "deb http://deb.playonlinux.com/ bionic main"

sudo add-apt-repository ppa:peek-developers/stable

SYNOPSIS
       add-apt-repository [OPTIONS] REPOSITORY

...

REPOSITORY STRING
       REPOSITORY can be either a line that can be added directly to
       sources.list(5), in the form ppa:<user>/<ppa-name> for adding
       Personal  Package  Archives, or a distribution component to
       enable.

       In the first form, REPOSITORY will just be appended to
       /etc/apt/sources.list.

In  the  second  form,  ppa:<user>/<ppa-name> will be expanded
       to the full deb line of the PPA and added into a new file in the
       /etc/apt/sources.list.d/ directory.  The GPG public key of the
       newly added PPA will also be downloaded and added to apt's
       keyring.

In the third form, the given distribution component will be
       enabled for all sources.