It still applies now. e.g. it's still trivial to deploy a ruby/rails app to a server (with rollback potential) using Capistrano. Capistrano itself just being a

It still applies now. e.g. it's still trivial to deploy a ruby/rails app to a server (with rollback potential) using Capistrano. Capistrano itself just being a DSL over a shell script that runs scp and a few remote commands.