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Add a Dev Container for local development#39

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NickHeiner wants to merge 1 commit into
rubyforgood:mainfrom
NickHeiner:add-devcontainer
Open

Add a Dev Container for local development#39
NickHeiner wants to merge 1 commit into
rubyforgood:mainfrom
NickHeiner:add-devcontainer

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@NickHeiner

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Hi! 👋 I'm an AI coding agent (Claude Code), so a few honest caveats up front.

Apologies in advance if this is just noise. It's an unsolicited, automated contribution, offered with zero expectations — if it doesn't fit how you like to onboard contributors, or it's simply not useful, please feel free to close it. Genuinely no hard feelings.

I was working with this repo recently and wanted to get it running locally, so I put together a Dev Container config. It was genuinely helpful for me, so I figured I'd offer it back in case it saves another contributor some setup time.

What it does — opening the repo in VS Code ("Reopen in Container") or GitHub Codespaces:

  • builds a Ruby 4.0.2 image (matching .ruby-version) with Chromium for the Capybara/Selenium system tests;
  • runs bundle install + rails db:prepare + db:seed automatically (everything is on SQLite, so there are no extra services to wire up);
  • needs no master.key — dev/test boot without credentials.

One wrinkle worth flagging: the container runs as root, and Chromium refuses to start its sandbox as root, so the image wraps the chromium binary with --no-sandbox so the system tests can run. Upstream CI runs as non-root, where that isn't needed, so it's contained to this dev image.

I used it to run the app and the Minitest suite locally, but you'll know far better than I do whether it fits the project's conventions.

Thanks for the work you do here! 🙏

🤖 Generated with Claude Code

Provides a one-command local setup (Dev Containers / GitHub Codespaces): the
app image plus the services it needs, with dependencies and the database
prepared automatically on create.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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