The latest articles on DEV Community by Anthony Verrons (@anthony_verrons_04e676ade). https://dev.to/anthony_verrons_04e676ade https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3983800%2F9941f7bd-f069-4387-81c7-f33f6dfdbd5b.jpg https://dev.to/anthony_verrons_04e676ade en Anthony Verrons Sun, 14 Jun 2026 11:44:19 +0000 https://dev.to/anthony_verrons_04e676ade/i-built-a-local-seo-saas-solo-in-4-months-heres-my-stack-ml2 https://dev.to/anthony_verrons_04e676ade/i-built-a-local-seo-saas-solo-in-4-months-heres-my-stack-ml2 <p>Hey Dev.to 👋</p> <p>I'm Anthony — I spent the last 4 months building Avision from scratch, solo. It's a Google Business Profile management platform that automates local SEO for small businesses and marketing agencies.</p> <p>I wanted to introduce myself properly by sharing the stack, because that's usually what people here actually want to know.</p> <h2> The stack </h2> <p><strong>Backend:</strong> Python 3.10 + FastAPI — running on a Hetzner CX41 (Ubuntu 22.04). The backend handles all GBP API calls, the RAG pipeline, Guardian Mode automation, and the Growth Radar keyword tracking engine.</p> <p><strong>Frontend/CMS:</strong> WordPress with a fully custom plugin (avision-dashboard) — ~300K lines of PHP and JavaScript. I know, I know. But WordPress gives you user management, billing hooks, and a mature ecosystem out of the box. Fighting it costs less than building from scratch.</p> <p><strong>AI/Intelligence layer:</strong> RAG architecture with Qdrant as the vector database (1,373+ knowledge chunks), OpenRouter for LLM routing, and a custom orchestrator that classifies intent, retrieves context, and generates responses in EN/FR/ES. I call it AVI — the intelligence engine behind the platform.</p> <p><strong>Payments:</strong> Stripe — one-time lifetime access plans + monthly wholesale per-location billing for agencies.</p> <p><strong>Auth:</strong> Google OAuth 2.0 — officially approved by Google for GBP API access (received homologation May 2026 after a strict review process).</p> <p><strong>Infrastructure:</strong> Hetzner VPS, CyberPanel + LiteSpeed, MariaDB, systemd services, fail2ban, weekly integrity checks.</p> <h2> What I'm writing about here </h2> <ul> <li>Local SEO and Google Business Profile (the technical side most devs don't cover)</li> <li>FastAPI + WordPress architecture decisions (and why I made them)</li> <li>RAG in production — what works, what doesn't</li> <li>Building in public as a solo founder</li> </ul> <p>If any of that sounds interesting, follow along. First technical article drops next week.</p> <p>And if you're building something solo — say hi. Always curious what other people are working on.</p> <p>python, fastapi, webdev, buildinpublic</p> python saas showdev wordpress