What is/was the Global Library Card? Is it needed because I don't ever remember seeing that perk. If it's needed how can I obtain one so I make sure my library works correctly & to the best of its ability.
GLC is a Raspberry Pi SD card with some bundled content. This content is now getting broadcast, though, so you won't be missing too much. Apart from the bundled content, it's identical to regular SD card you create yourself from our images.