Tested on macOS Sonoma. Should work on Linux too.
Run scripts/make_links.py to create symbolic links to dotfiles in the home directory.
(Run scripts/make_links.py --help to list command-line options.)
Alternatively, you can copy the files in dotfiles to your home directory,
but then you'll lose the ability to version-control them.
Change the name and email in .gitconfig and .hgrc.
Running scripts/get_vim_packages.py will create a vim_packages directory
and clone all repositories mentioned in vimpackages.txt.
Copy or symlink that directory at ~/.vim/pack/default/start.