Bundler vs Duo: What are the differences?

Bundler: A consistent environment for tracking and installing gems and versions *. It provides a consistent environment for Ruby projects by tracking and installing the exact gems and versions that are needed. It is an exit from dependency hell, and ensures that the gems you need are present in development, staging, and production; *Duo:** A next-generation package manager for the front end. Duo is a next-generation package manager that blends the best ideas from Component, Browserify and Go to make organizing and writing front-end code quick and painless.

Bundler and Duo are primarily classified as "Dependency Management" and "Front End Package Manager" tools respectively.

Duo is an open source tool with 3.52K GitHub stars and 143 GitHub forks. Here's a link to Duo's open source repository on GitHub.

According to the StackShare community, Bundler has a broader approval, being mentioned in 4 company stacks & 9 developers stacks; compared to Duo, which is listed in 3 company stacks and 6 developer stacks.