tmux with git-bash

 Install tmux with git-bash (mingw64)

Download 2 pre-built packages from: https://repo.msys2.org/msys/x86_64/

- tmux-<version>-x86_64.pkg.tar.zst 

- libevent-devel-<version>-x86_64.pkg.tar.zst 

Download Zstd for windows (used for decompressing ZST files):  https://sourceforge.net/projects/zstd-for-windows/files/

Unzip Zstd tool then use it to extract .tar.zst files to get tar files:

zstd.exe -d <path-to-file>.tar.zst

Use 7z to unzip tmux-<version>-x86_64.pkg.tar and libevent-devel-<version>-x86_64.pkg.tar, then copy all tmux.exe and libevent related dll files to C:\Git\mingw64\bin

Done.