You can remap keys using Generic.kl file in /system/usr/keylayout/ .
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If you want the Lineage OS experience on your PC today, Bliss OS is the gold standard. It is built on top of Lineage OS base code but optimized for desktop environments. You can remap keys using Generic
Building Android for x86 requires a separate fork, kernel patches for common PC hardware (Wi-Fi, audio, GPU, SATA), and bootloader support (BIOS/UEFI). Lineage’s core team concentrates on mobile device maintenance and security patches, not PC or VM compatibility. Attempting to compile Lineage OS for generic x86 results in a unique project, which leads us to the real solution. lineage os x86 iso download