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Design & ValidateLibraryOpen sourceFree
Squib
An open Ruby DSL that reads YAML, CSV, or spreadsheets and programmatically draws cards, sheets, and paper prototypes to PNG, PDF, or SVG.
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Why use it
When values and copy change often, designers can edit data once and regenerate a whole deck for balance iterations and version comparisons.
Where it fits
Use prototypes and playtests to find core experience problems while they are still cheap to fix.
tabletop-designtools-programming
What to check
It requires programming and typography knowledge, projects own image and font licensing, and flexible scripts need team template conventions.