Add post about auto-install by Ngan Pham

Signed-off-by: Martin Emde <me@martinemde.com>

_posts/2024-05-30-bundler-auto-install-just-got-a-whole-lot-better.md

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+---
+title: Bundler Auto-Install Just Got A Whole Lot Better
+layout: post
+author: Ngan Pham
+author_email: nganpham@gmail.com
+---
+
+_The RubyGems Team is happy to share this post from our colleague Ngan Pham, Principle Software Engineer @ Gusto. Thank you, Ngan!_
+
+Working in a large monolith with many engineers, you never fail to get a flurry of changes everytime you pull from `main`.
+Then you have the typical ritual of running `bundle install` and, if you're on a Rails application, `rails db:prepare`.
+Sometimes, you forget to run `bundle install` and get this message:
+
+```
+Could not find X-1.2.3 in locally installed gems
+Run `bundle install` to install missing gems.
+```
+
+As of Bundler 2.5.10, you can now enable the `auto_install` config to have Bundler automatically install your bundle on demand.
+Simply set it in your project (or globally) with:
+
+```
+bundle config auto_install true
+# or
+bundle config --global auto_install true
+```
+
+Auto-install is not a new concept. Commands like `bundle (show | binstubs | outdated | exec | open | console | license | clean)` already benefited from the `auto_install` config.
+
+However, the [recent enhancement](https://github.com/rubygems/rubygems/pull/6561) by [@technicalpickles](https://github.com/technicalpickles) made it work with anything that uses `require "bundler/setup"`. This means even binstubs (which uses `require "bundler/setup"` by default) will now _just work_.
+
+It's a small change but it results in a big quality of life improvement. Try it out!
+
+---
+
+_If you would like to share a post about something you love about Bundler or RubyGems on the RubyGems.org blog, we encouraged you to [contribute here on GitHub](https://github.com/rubygems/rubygems.github.io) or talk to us on the [Bundler Slack](https://join.slack.com/t/bundler/shared_invite/zt-1rrsuuv3m-OmXKWQf8K6iSla4~F1DBjQ)._