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Antal István
Software engineer

Generating code got easy. Making it last didn't.

I'm István Antal. I write about software architecture, agentic coding, and the craft of building things that last — notes from the work, not the hype.

Latest

8 posts
Tool

Earnings calculator

UK take-home pay by year, month and week, plus the 62% marginal-rate corridor between £100,000 and £125,140 where a pay rise is worth least.

Thoughts

Story points were always days

Story points began as ideal days times a load factor. Teams still convert them back, velocity is that conversion in public, and throughput beats both.

Thoughts

Testing and static analysis

In mathematics nothing is real until you prove it; in code the proof is tests. With an agent writing the code we need more testing and static analysis, not less — and tests good enough to be worth reading.

Thoughts

AI model benchmarks are a suggestion

Model benchmark tables and one-shot demos are vendor-run, Goodharted, and blind to your harness. The only benchmark that predicts your work is your work.

Guide

PDF to Markdown on a Mac

Convert PDFs to clean Markdown locally on Apple Silicon with marker, so LLMs can ingest documents efficiently without rasterising every page.

Guide

Video transcripts on a Mac

Transcribe video locally on Apple Silicon with whisper.cpp at 5–8x realtime — no API key, no per-minute charges, no audio leaving the laptop.

Guide

The agent loop that ships while you are away

An opinionated set of agent skills (and the Artifex CLI they lean on) that ships work from a Jira ticket to a deployed fix without you at the keyboard.

Guide

Spec Driven Development

A practical guide to turning plans into durable specs that humans and agents can review, approve, and implement.

Thoughts

Perspectives on software development, tech stacks, and engineering philosophy

Guides

Practical tutorials and how-to articles for real-world development challenges

Recommendations

Tools built here, plus articles, talks and utilities worth your time from elsewhere