twitter-bootstrap-rails is a Rails gem that integrates Bootstrap into the Asset Pipeline for Rails 5 through 8.
The gem solves the problem of quickly scaffolding Bootstrap-based layouts and components in Rails applications. It provides generators that map directly to Bootstrap's official documentation, allowing developers to generate starter templates, CDN configuration, and pre-built component partials by running simple Rails commands. The tool supports both Sprockets and Propshaft asset pipelines, automatically handling the differences between them. Bootstrap version, CDN URLs, and integrity hashes are centralized in a single configuration point, ensuring consistency across generated code.
Developers building Rails applications that need Bootstrap styling should choose this gem if they want to avoid manually copying Bootstrap snippets from the official documentation. It suits projects at any stage, from initial scaffolding to adding new components to existing layouts. The gem is particularly valuable for teams that want generated partials to stay synchronized with Bootstrap's official examples, since each of the 62 published Bootstrap examples across 12 categories can be generated as an `.html.erb` partial with variants matching the documentation's ordering.
The project maintains active engagement with Rails ecosystem changes, evidenced by support for the latest Rails 8 release and its default Propshaft asset pipeline. Development shows responsiveness to framework evolution, with explicit handling of both legacy and current Rails asset pipeline approaches. The codebase demonstrates attention to developer experience through comprehensive generator options and clear documentation of command variants.