Software published by cuculhart as open source.
A calculation board without cells. Place text and number pieces anywhere, and build subtotals, tax, and totals with aggregation zones and calculation pieces.
A board for building real Work Breakdown Structures. Breakdown first, schedule later — dependencies and the Gantt are derived from the structure.
A world-coordinate canvas engine. Real units, configurable origin, and a collision policy layer — position is data. Drivers span CAD floor plans to game maps.