The Utilihab building system would be a product of the Open Source Everything Project and is essentially an Open Source variation on the aluminum T-slot framing based building systems like TomaTech and the Jeriko House system. Using larger scale profiles of the type commonly employed in industrial automation as the basis of simple modular post & beam framing, the Utilihouse system provides a plug-in-architecture platform that allows its inhabitants to freely modify structures on demand using only a few hand tools. The system is also a direct analogy to building systems employed in space applications, but still offers a high degree of elegance and comfort with a Modernist style of design.