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Open-source construction ERP - BOQ, PDF/CAD/BIM takeoff, AI cost matching, 293 guided cases. 120,000+ priced positions, 44 languages, 190+ modules, cost data for 40+ markets. AGPL-3.0. pip install openconstructionerp
221 AI skills for construction: BIM analysis, cost estimation, scheduling, document control, and automation with Claude Code
Checking the quality of Revit and IFC projects