wtf is openwrt-r1350?

This project provides OpenWrt firmware and build instructions specifically for one router model: the Xiaomi Mi Router 4 Pro, also labeled R1350 or YA105. OpenWrt is a free alternative operating system that replaces a router's original software with more configurable, open source firmware. The README stresses that this port only works on this exact model, not the similarly named Mi Router 4 or Mi Router Pro, so buyers need to confirm their hardware before flashing. The repository includes ready to use firmware files for two situations: one for routers that already run OpenWrt and just need an upgrade, and one for a temporary RAM only boot used to safely test a device before writing anything permanent to its flash memory. The instructions are detailed and safety focused, covering how to back up the router's original flash chip, connect a serial adapter for low level access, and avoid overwriting a section called ART that stores factory calibration data the wifi radios need to function correctly. According to the status table, booting, both 2.4 and 5 gigahertz wifi, wired networking, the status LEDs, and the reset button all work correctly on real hardware. Hardware level traffic acceleration is not supported by this router's networking chip, so a software based alternative is enabled instead. For anyone who wants to build the firmware themselves rather than use the provided files, the project includes the exact patches, a device description file, and a minimal starting configuration needed to build from the official OpenWrt source code on Debian or Ubuntu Linux, along with the specific OpenWrt version and commit the author tested against. The patches and hardware description files are shared under GPL or MIT licensing to match OpenWrt's own licensing, and the project credits the original hardware identification and testing work to its author.