Notes on Android device-tree files encountered while building ROMs: Android.bp, Makefiles, properties, overlays, SELinux policy, and vendor blob extraction scripts.

Moving an RR boot drive from USB to a slightly smaller Optane disk by copying the first two partitions, recreating the third, and transferring its files, UUID, and label.

Integrating KernelSU into the Xiaomi Mi 8 Pro's non-GKI 4.9 kernel, with source patches, kprobe settings, AnyKernel3 packaging, and a GitHub Actions build workflow.

Backporting EROFS to the Xiaomi Mi 8 Pro's Linux 4.9 kernel, updating the LineageOS device tree and fstab, and troubleshooting build and boot issues.