Konstantin Komelin
Product Engineer with 19+ years of experience building full-stack web apps.
Focusing on AI integrations, AI tools, and MCP servers using TypeScript, React/Next.js, and Supabase, as well as auditing and improving AI-generated codebases.
Currently building a product and market research tool that helps founders pre-validate product ideas.
Latest Posts
Moving PreVibe from Vercel to a DigitalOcean VPS
Why I moved PreVibe's dashboard and MCP server to a VPS, how I handled the cutover, and the deployment problems I worked through along the way.
AI Image Generation Cost Analysis
Picking the wrong image generation model can cost you 100x more and take 27x longer. I ran the same prompt through 33 models from 8 providers to find out.
AI Framework Comparison: Vercel AI SDK, Mastra, Langchain and Genkit
I've created a few code examples to compare Vercel AI SDK, Mastra, Langchain.js and Google's Genkit, and here are my impressions...
A Thin API Layer for React Apps on Vercel
Not every React app needs Next.js. A single rewrite rule and Hono give you auth, rate limiting, and AI integration without changing your frontend stack.