Engineering
A New Enum Value Breaks Clients That Trusted Your List
A new enum value passes every schema diff and still breaks clients that validate responses. Read as text, send from a closed list, and mark it Breaking.
Oct 7, 2026
Engineering
Technical deep dives, architecture decisions, and development practices from the Dimantika team.
11 posts
Engineering
The Bill Is Authorised by Delivery, Not by Your Spend
Paying a vendor feels like it should authorise charging the client. It does not, and the wording that says it does once billed 900 credits for a video that did not exist.
Sep 18, 2026
Engineering
Negotiate the Format Before You Pay the Vendor
A 3% aspect mismatch is a rounding error. A 40% one is a different video. The threshold between them decides whether you refuse before the bill or apologise after.
Sep 16, 2026
Engineering
One Reviewer Approved It. The Other Found the Bug.
Six blockers across four consecutive stories, and the two reviews agreed on one of them. Here is what running both actually cost us, and the rule we ended up with.
Sep 14, 2026
Engineering
Your Container Lies About Its Size, and Your Library Believes It
Our render container reported 32 cores when it had 4. Remotion sized its defaults from that and OOMed. Five confident diagnoses died before the answer turned up in a version field nobody had thought to print.
Sep 3, 2026
Engineering
We Charged 900 Credits for a Video That Didn't Exist
Our billing rule said: failed run after a paid vendor call means we charge. It sounded fair. On a run that only paid for speech, it was false, and it cost a customer.
Sep 3, 2026
Engineering
Your Agent Isn't Confused. Your Schema Lied to It.
Teams blame MCP when agents fumble their tools. We shipped an MCP server for a video API and found the real defect: offering a field you answer with a 400.
Sep 3, 2026
Engineering
Hetzner VPS Security: Close Port 22 with Tailscale + ufw
Lock down SSH on your Hetzner VPS with Tailscale and restrict port 443 to Cloudflare IPs only. Our exact production ufw setup — no public SSH port, no direct origin access.
Mar 24, 2026
Engineering
Your AI Vibe-Coded That SaaS. Did You Actually Read It?
Many founders who vibe code hit the same wall after the initial MVP sprint. Here's the habit system that stops AI-generated SaaS code from collapsing under real users.
Mar 7, 2026
Engineering
Your Next Coworker Codes at 3 AM (AI Agents, 2026)
Cursor, Claude Code, and OpenAI Codex are battling to become the default AI coding agent. Here's what each tool actually does differently and how to pick the right one.
Mar 2, 2026
Engineering
The Cron That Reads Your Sentry Every Morning — and Opens PRs Before You Wake Up
Wire an AI coding agent to Sentry and it reads unresolved errors every morning, proposes fixes via PRs, and slows down your quota burn — automatically.
Mar 1, 2026