Unable to Build Site Following Instructions in README, macOS 26.1

[samuel-skean]

I followed the instructions in README.md (permalink to version of README.md as of this issue)and was unable to build the site. I am running macOS 26.1.

Specifically, I followed the steps on https://jekyllrb.com/docs/installation/ to install jekyll, and then I ran the commands in the README. The only way I deviated from the instructions on https://jekyllrb.com/docs/installation/ was that I placed the "source" lines in ~/.bashrc instead of ~/.zshrc (I use bash 5.3.3, installed with brew).
I did not follow any instructions from https://jekyllrb.com/docs, they seemed redundant.

I only encountered errors when running the bundle exec jekyll commands from the README. Here's the error I got from bundle exec jekyll build:

bundler: failed to load command: jekyll (/Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/bin/jekyll)
/Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/jekyll-4.3.4/lib/jekyll.rb:28:in 'Kernel#require': cannot load such file -- csv (LoadError)
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/jekyll-4.3.4/lib/jekyll.rb:28:in '<top (required)>'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/jekyll-4.3.4/exe/jekyll:8:in 'Kernel#require'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/jekyll-4.3.4/exe/jekyll:8:in '<top (required)>'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/bin/jekyll:25:in 'Kernel#load'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/bin/jekyll:25:in '<top (required)>'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli/exec.rb:58:in 'Kernel.load'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli/exec.rb:58:in 'Bundler::CLI::Exec#kernel_load'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli/exec.rb:23:in 'Bundler::CLI::Exec#run'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli.rb:486:in 'Bundler::CLI#exec'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/vendor/thor/lib/thor/command.rb:27:in 'Bundler::Thor::Command#run'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in 'Bundler::Thor::Invocation#invoke_command'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/vendor/thor/lib/thor.rb:392:in 'Bundler::Thor.dispatch'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli.rb:31:in 'Bundler::CLI.dispatch'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/vendor/thor/lib/thor/base.rb:485:in 'Bundler::Thor::Base::ClassMethods#start'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli.rb:25:in 'Bundler::CLI.start'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/exe/bundle:48:in 'block in <top (required)>'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/friendly_errors.rb:120:in 'Bundler.with_friendly_errors'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/exe/bundle:36:in '<top (required)>'
	from /Users/samuel-skean/.rubies/ruby-3.4.1/bin/bundle:25:in 'Kernel#load'
	from /Users/samuel-skean/.rubies/ruby-3.4.1/bin/bundle:25:in '<main>'

And here's the error I got from bundle exec jekyll serve:

bundler: failed to load command: jekyll (/Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/bin/jekyll)
/Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/jekyll-4.3.4/lib/jekyll.rb:28:in 'Kernel#require': cannot load such file -- csv (LoadError)
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/jekyll-4.3.4/lib/jekyll.rb:28:in '<top (required)>'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/jekyll-4.3.4/exe/jekyll:8:in 'Kernel#require'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/jekyll-4.3.4/exe/jekyll:8:in '<top (required)>'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/bin/jekyll:25:in 'Kernel#load'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/bin/jekyll:25:in '<top (required)>'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli/exec.rb:58:in 'Kernel.load'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli/exec.rb:58:in 'Bundler::CLI::Exec#kernel_load'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli/exec.rb:23:in 'Bundler::CLI::Exec#run'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli.rb:486:in 'Bundler::CLI#exec'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/vendor/thor/lib/thor/command.rb:27:in 'Bundler::Thor::Command#run'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in 'Bundler::Thor::Invocation#invoke_command'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/vendor/thor/lib/thor.rb:392:in 'Bundler::Thor.dispatch'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli.rb:31:in 'Bundler::CLI.dispatch'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/vendor/thor/lib/thor/base.rb:485:in 'Bundler::Thor::Base::ClassMethods#start'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/cli.rb:25:in 'Bundler::CLI.start'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/exe/bundle:48:in 'block in <top (required)>'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/lib/bundler/friendly_errors.rb:120:in 'Bundler.with_friendly_errors'
	from /Users/samuel-skean/Coding/Not-Mine/jsonlines/vendor/bundle/ruby/3.4.0/gems/bundler-2.3.26/exe/bundle:36:in '<top (required)>'
	from /Users/samuel-skean/.rubies/ruby-3.4.1/bin/bundle:25:in 'Kernel#load'
	from /Users/samuel-skean/.rubies/ruby-3.4.1/bin/bundle:25:in '<main>'

I would be happy to help by providing more info or troubleshooting more, but I am unfamiliar with jekyll, and busy for the remainder of the week.

[samuel-skean]

This is no longer a priority for me. Sorry for missing my deadline.