Followed the page to install Jekyll on macOS.

Hardware: MBP M3 OS: macOS Sonoma 14.7.1

First install Ruby.

brew install chruby ruby-install
ruby-install ruby 3.3.6

echo "source $(brew --prefix)/opt/chruby/share/chruby/chruby.sh" >> ~/.zshrc
echo "source $(brew --prefix)/opt/chruby/share/chruby/auto.sh" >> ~/.zshrc

## run 'chruby' to see actual version
## use `.ruby-version` file under the repository to auto-switch ruby version
echo "ruby-3.3.6" >> ./.ruby-version

Open another terminal to activate the specific ruby version

## check ruby and gem is active and with right version
ruby --version && gem --version

## install jekyll
gem install jekyll

Since did not find the way to init the current folder by jekyll, so use jekyll to new a project, then copy all the stuff into the project petesong.github.io.

cd petesong.github.io
jekyll new newblog
mv ./newblog/* ./
rm -rf newblog

Run the server to check the site in browser

jekyll server -w