Boris Zarinski
/u/borcezarinski
I take products from a blank directory to production - full-stack architecture, AI agents and orchestration, and design that makes software feel alive.
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5 Proven Strategies for Testing AI Agents in Production
Your AI agent works in staging but fails in production. Non-deterministic responses and cascading errors cost you users and revenue. There's a testing framework that catches these failures before they hit your customers — and it's not in any documentation.
Build a Multimodal Full-Stack App: Vercel AI SDK 7 + FastAPI
Most developers still treat AI as a text-only autocomplete. That's leaving money on the table — and your users expect more. Here's the exact architecture to combine Vercel AI SDK 7 agents with a FastAPI backend for text, images, and audio in one streaming pipeline.
7 Audit Trail Patterns That Shield Your AI Agents From EU Fines
Your autonomous AI agents are making decisions right now that you can't trace. Under the EU AI Act, that's not just sloppy engineering—it's a liability that could cost 7% of global revenue. There's a structural pattern that solves this without slowing your agents down.
7 Error Patterns That Keep AI Agents Alive in Production
Your AI agent crashes silently, costs explode, and users see blank screens. Three retries won't fix it. There's a layered survival system that stops failures before they cascade — and it's not in any SDK docs.
7 Memory Tiers That Give AI Agents Long-Term Smarts
Your AI agent forgets everything after 5 minutes of conversation. That's not just annoying — it's costing you revenue, trust, and the ability to scale. But there's a tiered memory architecture that makes agents remember context, past decisions, and user preferences across sessions. And it's simpler than you think.
6-Layer AI Stack: Patterns for Production Full-Stack Apps
You've built the demo, but your AI app falls apart under real traffic. Slow responses, spiraling costs, and brittle agent loops are killing your product. There's a proven six-layer architecture that fixes all three—and most teams skip layer four entirely.
Build Runtime-Assembled UI: 7 Patterns for Design-Compliant Interfaces on the Fly
You're manually wiring design tokens into every component, and it's costing you hours per sprint—while the UI still drifts from specs. There's a smarter way: runtime-assembled interfaces that pull design systems live, adapt to user intent, and ship faster. Here's how to build them without the complexity.
Add a Deterministic AI Agent Layer to Your Full-Stack App
You've spent months shipping features, but now AI promises to automate workflows—yet every tutorial leaves you with hallucinating endpoints and broken state. There's a pattern that keeps agents predictable, auditable, and safe. And it doesn't require rewriting your entire stack.
5 AI Patterns That Stop Styling Drift in Full-Stack Apps
Your design system is drifting. Every AI-generated component introduces subtle visual inconsistencies that snowball into a fractured UI. There's a new machine-readable contract approach that locks in brand rules before a single line of code is written—and it's not in any tutorial.
7 Proven Patterns to Integrate AI Agents Into Full-Stack Apps
You've built a solid full-stack app, but adding AI agents often breaks everything—slow APIs, drift nightmares, and security holes you didn't see coming. There's a battle-tested approach that top teams use to ship agents without the chaos. And it starts with one critical decision most tutorials get wrong.