A developer built an automated screenshot system for a help centre in their Rails app. Using Markdown comments as instructions, a Rake task fires up headless Chrome via Capybara and Cuprite to capture screenshots of specific UI elements, full pages, or viewports. Options include clicking buttons to reveal popovers, waiting for animations, cropping, hiding elements, and applying visual effects. Running a single command rebuilds all screenshots and help pages, keeping documentation always in sync with the UI.
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Markdown with a twistHow it worksThe satisfying bitOne of those “why didn’t I do this sooner” things1 Comment
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