You don't need a zsh framework. You need just plug!

.zshrc

# usage: plug! some/repo[:branch] [file-to.load ...]
# example: plug! sindresorhus/pure:main async.zsh pure.zsh
# to update everything - simply remove ~/.plug directory
function plug!() {
  local arg=("${(@s/:/)1}") && r=$arg[1] && b=${arg[2]:=master}
  local dir="$HOME/.plug/$r"
  [[ -d $dir ]] || git clone --depth=1 --branch=$b https://github.com/$r $dir
  for f in "${@:2}"; do source "$dir/$f"; done
}