Mehmet
Erturk
EngineerDesignerFounderBuilder who ships.
Not tools. Not dashboards. Systems that run work autonomously.
9+ years in commerce, payments, and AI agents — zero to scale with P&L ownership. Hands in the code.
Recent
All 67 articles →Local AI Agent Loops: The Part I Had to Build From Scratch→
Jun 10, 2026A local tool-calling harness is not enough once users ask for more than one thing in one message. You need an agent loop you can actually trust.
Harness Engineering Went Mainstream. Local Is Where It Gets Hard→
Jun 7, 2026Harness engineering finally has a name and a curriculum — built around frontier coding agents. Here is the field guide for the harsher version: a small model, on a phone, with nobody to call.
From Hard to Harnessed: Making On-Device LLM Tool-Calling Actually Work→
Jun 3, 2026A 3B model on your phone should log "5$ starbucks" as a five-dollar transaction attributed to Starbucks. Mine wrote a coffee-shop review instead. Here is the harness that fixed it.
User-Configurable Cache TTL: A Pattern Stolen from Magento for Multi-Tenant SaaS→
Apr 5, 2026How I gave each workspace control over its own cache lifetime, with auto-flush on TTL decrease, cross-entity invalidation, and E2E tests that prove it works.
Practical Allocation Hunting in Rust: Patterns That Actually Matter→
Apr 3, 2026Real before-and-after patterns for eliminating unnecessary heap allocations in production Rust, from ByteCounter to LazyLock.