https://www.pavolrasev.com/blog/Notes from real projects: web apps, online stores and the rules that shape them.enhttps://www.pavolrasev.com/blog/claude-code-agents-workflow/https://www.pavolrasev.com/blog/claude-code-agents-workflow/Sun, 27 Sep 2026 00:00:00 GMTOn Thursday a Claude Code session found a bug in a client's store while it was helping me write a blog post. It didn't fix it. It sent the bug to another session, the one that owns that code, and later that day I had a fixed module, 49 green tests and two questions I hadn't thought to ask.https://www.pavolrasev.com/blog/one-app-for-internal-processes/https://www.pavolrasev.com/blog/one-app-for-internal-processes/Sun, 27 Sep 2026 00:00:00 GMTIt started with lunch. A manufacturing company had tried an app for meal orders that never quite worked, went back to the phone for the rest, and after enough problems ended up on paper. So we're building a new one. What we're really building, though, is the place where everything else will go next: announcements people have to sign, alerts when a machine stops, and the statistics nobody has time to collect by hand.https://www.pavolrasev.com/blog/eu-e-invoicing-prestashop/https://www.pavolrasev.com/blog/eu-e-invoicing-prestashop/Fri, 25 Sep 2026 00:00:00 GMTIf your store sells to businesses, the PDF invoice is on its way out. Country by country, invoices to companies are becoming structured XML sent through Peppol or a government platform, and consumers are mostly unaffected. Here is where each country stands, where PrestaShop trips up, and how I built it into a real store.