Mina is a fast deployment tool for Ruby applications that emphasises speed by using a single SSH connection per deployment.

It allows you to define deployment scripts in a DSL, automating tasks such as pulling code, running migrations, and restarting servers. Setup involves adding Mina, generating a deploy.rb file, and customising it for your environment.

It supports Rails 6, 7 and 8 on Ruby 3+, and is favoured for smaller teams or projects that want minimal overhead compared to Capistrano. Its strengths are speed and simplicity, while its weaknesses include a smaller ecosystem of plugins.