Quirks

These come from the project’s own testing on one stick (codename karat, Fire OS 8, Android 11).

• Home is Fire’s. The Home key is handled before any app or accessibility service sees it. Everything Glass does about Home works around that.
• Remote buttons are Fire’s too. The four app buttons, Recents and Settings are handled inside the system. Reaching them needs a root key remap.
• No default-launcher picker. Fire OS offers no “choose your home app” setting. The setting Glass shows on Google TV does not exist here.
• Only Amazon’s screensavers run. Glass starts Aerials from its own idle timer instead, unless you are rooted or granted the secure-settings permission.
• Alexa depends on more than it looks like. Removing com.amazon.aria makes Alexa crash on every hold.
• Prime Video and Alexa share one Amazon account. Fire OS’s account identity is device-wide.
• Animation scale matters. Glass’s motion is tuned at the system’s normal 1.0x animation scale. Lower scales make it look wrong.
• No volume keys on the stick, so Magisk safe mode is awkward; use magisk --remove-modules over adb.
• A hold on the remote’s Home button for 10 seconds starts pairing.