How does git command work with msys2?

[chucklu]

I have installed and configured msys2 as mentioned in README.md.
But when I tried to use git command in msys2, it shows bash: git: command not found

I tried to install git in msys2 according https://stackoverflow.com/questions/60753693/bash-git-command-not-found-in-msys
Two install command mentioned are executed, but none of them works, and I got HTTP 404 error

First command to install git
pacman -S git
error: failed retrieving file 'openssh-9.6p1-1-x86_64.pkg.tar.zst' from mirrors.tuna.tsinghua.edu.cn : The requested URL returned error: 404
error: failed retrieving file 'heimdal-7.8.0-4-x86_64.pkg.tar.zst' from mirrors.tuna.tsinghua.edu.cn : The requested URL returned error: 404
error: failed retrieving file 'perl-MIME-tools-5.510-1-any.pkg.tar.zst' from mirrors.tuna.tsinghua.edu.cn : The requested URL returned error: 404
warning: too many errors from mirrors.tuna.tsinghua.edu.cn, skipping for the remainder of this transaction
error: failed retrieving file 'perl-Net-SSLeay-1.92-6-x86_64.pkg.tar.zst' from mirrors.tuna.tsinghua.edu.cn : The requested URL returned error: 404
error: failed retrieving file 'git-2.43.0-1-x86_64.pkg.tar.zst' from mirrors.tuna.tsinghua.edu.cn : The requested URL returned error: 404
warning: failed to retrieve some files
error: failed to commit transaction (failed to retrieve some files)
Errors occurred, no packages were upgraded.

Second command to install git
pacman -Syu git
error: failed retrieving file 'msys.db' from mirrors.tuna.tsinghua.edu.cn : The requested URL returned error: 404
error: failed retrieving file 'mingw32.db' from mirror.msys2.org : Resolving timed out after 10001 milliseconds
error: failed retrieving file 'ucrt64.db' from mirror.msys2.org : Could not resolve host: mirror.archlinux.tw
warning: too many errors from mirror.msys2.org, skipping for the remainder of this transaction
error: failed to synchronize all databases (unexpected error)

[chucklu]

find this documentation https://www.msys2.org/docs/git/
There exists a guide to install the official build into MSYS2: https://github.com/git-for-windows/git/wiki/Install-inside-MSYS2-proper but note that this setup is only supported on a best effort basis and any issues should be verified with the official git build before reporting them upstream.

maybe I should use the git for Windows directly instead of try to make git work in msys2