How to run & install Tuner as a Linux Flatpak application in Chromebook

Chromebooks are forked off of the Linux subsystem. So running Linux applications on Chromebooks is relatively easy. One of my favorite Internet Radio streaming apps is Tuner. Below are the commands to install Flatpak on Chromebook and install the Tuner application.

To install the Tuner internet radio app via Flatpak on your Chromebook, first enable Linux in your settings, open the Linux Terminal, install Flatpak, add the Flathub repository, and run the installation command. [1, 2, 3, 4]

Enable Linux & Install Flatpak

Open your Chromebook Settings, go to Advanced > Developers, and turn on Linux.
Open the Terminal app from your app launcher.
Update package lists and install Flatpak by running:
sudo apt update && sudo apt install flatpak
Add the Flathub Setup repository to access the app:
flatpak --user remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
Restart your Linux environment by right-clicking the terminal title bar and choosing Shut down Linux, then reopen the Terminal. [1, 2, 3, 4, 5]

Install Tuner

Run the following command in your Linux terminal to install the radio application:
flatpak install flathub io.github.tuner_labs.tuner