Failed to install bundle, is the README up to date?

[Jaccouille]

Hello,

I have ruby 2.6.8p205 (2021-07-07 revision 67951).
I was following the README instruction to setup the project, encountered those issues :

Fetching bundler-2.5.6.gem
ERROR:  Error installing bundler:
        The last version of bundler (>= 0) to support your Ruby & RubyGems was 2.4.22. Try installing it with `gem install bundler -v 2.4.22`
        bundler requires Ruby version >= 3.0.0. The current ruby version is 2.6.8.205.

I ran sudo gem install bundler -v 2.4.22, without noticeable problem except for the next command

$ bundle install                                                                                                            
Your RubyGems version (3.0.3.1) has a bug that prevents `required_ruby_version` from working for Bundler. Any scripts that use `gem install bundler` will break as soon as Bundler drops support for your Ruby version. Please upgrade RubyGems to avoid future breakage and silence this warning by running `gem update --system 3.2.3`
Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies...
Could not find compatible versions

Because nokogiri = 1.16.0.rc1 depends on Ruby >= 3.0.0
  and nokogiri >= 1.16.0.rc1, < 1.16.0 depends on Ruby >= 3.0, < 3.1.dev,
  nokogiri >= 1.16.0.rc1, < 1.16.0 requires Ruby >= 3.0.0.
So, because nokogiri = 1.15.4 depends on Ruby >= 2.7.0
  and nokogiri >= 1.15.4, < 1.15.5 depends on Ruby >= 2.7, < 3.1.dev,
  nokogiri >= 1.15.4, < 1.15.5 OR >= 1.16.0.rc1, < 1.16.0 requires Ruby >= 2.7.0.

See following picture for complete output :

[Frotty]

Yea the readme seems out of date, will update. Github Pages uses ruby 2.7.4 see https://pages.github.com/versions/

edit: I have updated the readme a bit

[Jaccouille]

Thanks, I managed to setup & run the project.
However I encountered many small error due to my inexperience with ruby on macOs Monterey 12.2.1.

I Recommend those 2 links :
https://jekyllrb.com/docs/installation/macos/
https://stackoverflow.com/questions/69890412/bundler-failed-to-load-command-jekyll