Louis Le Bras is an entropic architect, designer, front-end engineer and investor

He is the creator of Principle OS™, a web operating system built to bring structural clarity and execution speed to digital products. Developed across design systems, front-end engineering and automation, Principle OS enables the construction of coherent digital infrastructures where invariants reduce complexity and structure precedes styling. It allows teams to deploy faster without accumulating structural debt.

He develops dieter™, an interface standard and language designed by geometry and precise ratios for humans and agentic systems. /dieter separates brand expression from structural invariants: colors and typography remain flexible, while proportion, rhythm and hierarchy remain fixed. It ensures consistency, prevents visual drift and secures products against degradation as they scale. In practice, it enables teams to ship coherent interfaces, reduce micro-decisions and preserve quality over time.

He is also the founder of Blueprints Radar, an economic orientation layer designed to track where structural value is created and where money is made. Blueprints maps viable models, market asymmetries and capital flows to support long-term positioning. It helps entrepreneurs launch with entropy-reducing blueprints and operators identify where leverage and conviction sit. Signal over noise.

Earlier, he founded Donzelli®, a curated index of furniture, places and architecture. Donzelli documents objects selected for engineering integrity and aesthetic coherence, offering a structured way to explore design without endless searching.

He has been working with brands, agencies and startups for almost 9 years. Selected — Nike, KitchenAid, FFF, Fraser Yachts — challenging them on structural positioning, conversion systems and product coherence.