Thoughts on building products, AI-assisted development, and the founder journey.https://martinsvoboda.dev/https://martinsvoboda.dev/en/blog/biggest-ai-project-czechia/https://martinsvoboda.dev/en/blog/biggest-ai-project-czechia/237K lines of custom code. 3,528 commits. 15 months. One developer. Here's the proof behind the claim.Fri, 13 Mar 2026 00:00:00 GMTaikvaltyengineeringhttps://martinsvoboda.dev/en/blog/the-14-million-line-delete/https://martinsvoboda.dev/en/blog/the-14-million-line-delete/I just finished a complete backend rewrite of Kvalty.cz. Replaced Directus with a custom solution. Here's what that actually looked like.Sun, 01 Mar 2026 00:00:00 GMTengineeringkvaltybackendhttps://martinsvoboda.dev/en/blog/ralph-method/https://martinsvoboda.dev/en/blog/ralph-method/The story of the Ralph method — a fleet of parallel Claude Code sessions that autonomously crawled, extracted, and validated every driving school in the Czech Republic.Fri, 20 Feb 2026 00:00:00 GMTaidataengineeringkvaltyhttps://martinsvoboda.dev/en/blog/vibe-engineering/https://martinsvoboda.dev/en/blog/vibe-engineering/The difference isn't how fast you write. It's how hard you make AI think. Here's the methodology behind building Kvalty.cz.Thu, 15 Jan 2026 00:00:00 GMTaimethodologyengineeringhttps://martinsvoboda.dev/en/blog/six-hats-of-solo-founder/https://martinsvoboda.dev/en/blog/six-hats-of-solo-founder/When building Kvalty.cz, I'm not just a developer. I'm a tech lead, art director, PM, QA tester, brand manager, and copywriter. Here's how the split actually works.Mon, 15 Dec 2025 00:00:00 GMTstartupaifounderhttps://martinsvoboda.dev/en/blog/building-kvalty/https://martinsvoboda.dev/en/blog/building-kvalty/Today I operate the largest driving school comparator in Czech Republic. Possibly the biggest Czech project built with AI assistance.Mon, 01 Dec 2025 00:00:00 GMTstartupkvaltyai