How to install PineOS:

Step 1: Go to davetheduk.itch.io/pineos-demo or click the green "Download PineOS" button located on every page of the PineOS website

Step 2: Choose your version (Note: Not all versions of PineOS is available on the itch.io page).

Step 3: Extract the ZIP file and then just run it.

Please note that PineOS is not a proper operating system, see our Q&A for more information.