I’m Louis Trümpler, founder of LT+, developing open-source tools and services that make digital construction more sustainable and accessible. My focus is on openBIM, IFC-based workflows, and life cycle assessments (LCA) to help reduce the carbon footprint of buildings.

Every contribution helps me keep these tools free, improve them for the community, and push forward innovation in digital sustainability. By supporting my work, you’re helping shape a future where construction is smarter, transparent, and climate-friendly.