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Bundler: The best way to manage a Ruby application's gems
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<p>Bundler provides a consistent environment for Ruby projects by tracking
and installing the exact gems and versions that are needed.
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<p>Bundler is an exit from dependency hell, and ensures that the gems
you need are present in development, staging, and production.
Starting work on a project is as simple as <code>bundle install</code>.
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<a href="/guides/getting_started.html#getting-started" class="btn btn-primary btn-lg btn-responsive">What Can Bundler Do?</a>
<a href="/whats_new.html" class="btn btn-primary btn-lg btn-responsive">New in v2.3</a>
<a href="/v2.3/man/bundle-install.1.html" class="btn btn-primary btn-lg btn-responsive">CLI Docs</a>
<a href="http://slack.bundler.io" class="btn btn-primary btn-lg btn-responsive">Chat With Us</a>
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The latest news
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<h3>
Jan 23, 2022
<a href="/blog/2022/01/23/bundler-v2-3.html">Bundler v2.3: Locking the version of Bundler itself</a>
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<b>Getting Started</b>
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<p>Getting started with bundler is easy! Open a terminal window and run this command:
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<div class="highlight"><pre class="highlight plaintext"><code>$ gem install bundler&#x000A;</code></pre></div>
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<p>Specify your dependencies in a Gemfile in your project's root:
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<div class="highlight"><pre class="highlight ruby"><code><span class="n">source</span> <span class="s1">'https://rubygems.org'</span>&#x000A;<span class="n">gem</span> <span class="s1">'nokogiri'</span>&#x000A;<span class="n">gem</span> <span class="s1">'rack'</span><span class="p">,</span> <span class="s1">'~&gt; 2.0.1'</span>&#x000A;<span class="n">gem</span> <span class="s1">'rspec'</span>&#x000A;</code></pre></div>
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<a href="/gemfile.html" class="btn btn-primary btn-lg btn-responsive">Learn More: Gemfiles</a>
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<p>Install all of the required gems from your specified sources:</p>
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<div class="highlight"><pre class="highlight plaintext"><code>$ bundle install&#x000A;$ git add Gemfile Gemfile.lock&#x000A;</code></pre></div>
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<a href="/v2.3/man/bundle-install.1.html" class="btn btn-primary btn-lg btn-responsive">Learn More: bundle install</a>
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<h2 id='get-involved'>Get involved</h2>
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Bundler has a lot of contributors and users, and we would love to have your help! If you have questions, join <a href="http://slack.bundler.io">the Bundler Slack</a> and we'll try to answer them. If you're interested in contributing (no programming skills needed), start with <a href="https://github.com/rubygems/rubygems/blob/master/bundler/doc/contributing/README.md">the contributing guide</a>. While participating in the Bundler project, please keep the <a href="/conduct.html">code of conduct</a> in mind, and be inclusive and friendly towards everyone. If you think you've found a security issue, please report it via <a href="https://hackerone.com/rubygems">HackerOne</a>.
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<a href="https://github.com/rubygems/rubygems/blob/master/bundler/doc/contributing/README.md" class="btn btn-primary">Contributing guide</a>
<a href="https://hackerone.com/rubygems" class="btn btn-primary">Report security issue</a>
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