Insights
At the intersection of what we build and what engineers search for.
Posts grounded in systems Introfinity actually ships.
How Much 3D Belongs on a Travel Website?
Immersion can create destination belief, but only up to the point where load time and interaction cost outweigh the confidence it creates — especially on mobile.
What We Learned Running Regression Evaluations Across LLM Models
Model choice is rarely the long-term bottleneck. Knowing whether a change improved the product is — and demos are the wrong evidence for that decision.
Why Membership Renewal Needed a Payment Ledger
Updating an expiry date is not a renewal. Payments are events. Membership status is derived state — and confusing the two creates silent operational debt.
Why Vector Search Alone Wasn't Enough for Job Matching
Embeddings are strong for neighborhood recall. They cannot enforce eligibility, explain a skip, or tell you whether a change improved matching quality.