install ubuntu on win11, then logon to ubuntu.
install git
sudo apt-get install git
whereis python
sudo ln -s /usr/bin/python3.8 /usr/bin/python
mkdir ~/bin
PATH=~/bin:$PATH
curl https://mirrors.tuna.tsinghua.edu.cn/git/git-repo > ~/bin/repo
chmod +x ~/bin/repo
vim ~/.bashrc
export REPO_URL='https://mirrors.tuna.tsinghua.edu.cn/git/git-repo'
source ~/.bashrc
mkdir WORKING_DIRECTORY
cd WORKING_DIRECTORY
repo init -u https://mirrors.tuna.tsinghua.edu.cn/git/AOSP/platform/manifest -b android-5.1.0_r1
repo sync
branches view: https://source.android.com/setup/start/build-numbers#source-code-tags-and-builds