There are 3 repositories under bootloader-unlock topic.
小米 BootLoader《解锁资格答题测试》更新记录
A PoC that exploits a vulnerability to bypass the Xiaomi HyperOS community restrictions of BootLoader unlocked account bindings.
Keeping track of companies that "care about your data 🥺"
Files needed to unlock bootloader on Europe Realme devices
Sony Ericsson Xperia X8 (Unlock)