MiCode/Xiaomi_Kernel_OpenSource is Xiaomi's official GPL compliance release mechanism for Linux kernel sources powering its Android devices. The default branch (named 'README') contains no application or library code whatsoever -- only a single Markdown file that serves as a structured index mapping ~200 device codenames (e.g., dada-v-oss for Xiaomi 15, alioth-r-oss for Mi 10S) to git branches. Each branch holds the actual Linux kernel source tree for a specific device/Android-version combination, based on Qualcomm CodeAurora (LA.UM/LA.VENDOR) or MediaTek (alps-*) vendor base tags identified in the table. There are no APIs, executables, build scripts, or tests in this branch; the repository's real product is the branch-per-device collection of GPL-required kernel sources. Architecturally this is a source distribution index rather than software. Its value is as reference data: developers building custom ROMs, security researchers auditing device kernels, and compliance tooling all use the README to locate the correct branch for a given device. The catalog is actively maintained -- entries for Android W devices (Xiaomi 17 series, Redmi K90, Xiaomi Pad 8) and a recent commit dated 2026-10-12 indicate ongoing releases -- and the table format is consistent enough to be machine-parsed. However, it exhibits manual-maintenance defects: several links point to differently-named branches (diting-s-oss -> bsp-diting-s-oss, corot-s-oss -> corot-t-oss, goku-u-oss -> goku-u-oss-test), some rows contain stray whitespace, and a few devices appear with overlapping/duplicated entries. The repository is not reusable as a software component, but it is a uniquely comprehensive authoritative mapping of Xiaomi devices to their kernel sources.