Explore ruby to run Jekyll

New month resolution

I decided to create a simple static blog.

The only idea is to post every day only one small thing I focused on or being asked for.

How to install ruby locally on macOS manual

install homebrew (if you don’t have it):

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

or update if you have it:
```
brew upgrade
```
install chruby & ruby-install:
```
brew install chruby ruby-install xz
```
install ruby 3.1.3:
```
ruby-install ruby 3.1.3
```

configure environment:

echo "source $(brew --prefix)/opt/chruby/share/chruby/chruby.sh" >> ~/.zshrc
echo "source $(brew --prefix)/opt/chruby/share/chruby/auto.sh" >> ~/.zshrc
echo "chruby ruby-3.1.3" >> ~/.zshrc

look for actual ruby installed:
```
chruby
```
install jekyll ruby gem:
```
gem install jekyll
```
install/update all required gems
```
bundle update
```

run the local server (--livereload since 3.7)

bundle exec jekyll serve --trace --livereload

open in the browser:
```
open http://127.0.0.1:4000/
```