ruby '~> 3.0' source 'https://rubygems.org' gem 'json' # required for bibtex gem 'asciidoctor', '~> 2.0' gem 'asciidoctor-pdf', '~> 2.3' gem 'asciidoctor-bibtex', '~> 0.8.0' # gem 'asciidoctor-interdoc-reftext', '~> 0.5.2' gem 'asciidoctor-interdoc-reftext', git: 'https://github.com/lonkaars/asciidoctor-interdoc-reftext'