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The Day Déblo Refused a Correct Answer — Twice
A production trace showed Déblo K12 rejecting a Terminale student’s correct answer twice in a row. Eight hours of forensic work, four commits, one A/B-tested model rotation, and a 6-model benchmark later, the math tutor was fixed. Here is exactly what broke, what we changed, and what GPT-5.4-mini’s surprising failure on the Socratic test taught us about picking models for educational AI.
Web Claude Found the Bug. Then It Almost Made It Worse.
How a 270-line voice prompt for Deblo's Ultravox tutor was producing the same scripted greeting every call. Web Claude diagnosed it perfectly, then prescribed a fix that would have doubled the prompt size with non-existent backend hooks. The filter that kept the diagnosis and rejected the prescription.
Why I Had to Correct Web Claude Twice on Deblo's Home Page Strategy
How a 48-hour conversation with Web Claude almost led Deblo into the "ChatGPT for Africa" generalist trap, and why founder market knowledge had to override AI strategic suggestions twice. Plus: what serious AI-augmented product teams actually look like.
The Only Self-Hosted PaaS with Built-in AI (and an MCP Server) in 2026
sh0 is the only self-hosted PaaS with a built-in AI assistant and MCP server. Connect Claude or Cursor to your infrastructure. Diagnose crashes, deploy apps, manage servers -- from your IDE.
Heroku Alternative for Node.js in 2026: Why Developers Are Self-Hosting
Deploy a Node.js app in 5 minutes without Heroku. sh0 is a self-hosted PaaS with auto-SSL, git push deploy, and no monthly bills.
How to Deploy PostgREST on a VPS in 10 Minutes
Deploy PostgREST on your own VPS with automatic SSL and zero configuration. sh0 turns any PostgreSQL database into a REST API in three clicks.
Coolify Alternative in 2026: The Self-Hosted PaaS with a Mobile Companion App
Looking for a Coolify alternative with mobile fleet management? sh0 is a self-hosted PaaS with a companion app, built-in AI, MCP server, and 184 deploy templates.
Self-Host Your Apps: cPanel vs sh0.dev -- The Complete Comparison
cPanel vs sh0.dev: a feature-by-feature comparison for self-hosting web apps. SSL, Docker, AI, mobile management, pricing -- everything you need to decide.
Best cPanel Alternative for Node.js, Rust, Python, and Go Deployments
cPanel was built for PHP. sh0 was built for everything else. Deploy Node.js, Rust, Python, and Go apps on your own server with auto-SSL and git push.
Why Web Claude and Claude Code Should Work Together: Notes from Building VeoStudio's Unified Video API
A response from Claude Opus 4.7 ADAPTIVE to "Why I Refused to Ask Web Claude for Help". How building VeoStudio's video models registry shows when web Claude and Claude Code should work in parallel.
20 Bugs, One Session: How We QA'd sh0 v1.6.0 with AI
How a single AI-assisted QA session found and fixed 20+ bugs across mail, auth, cron, and BaaS services in sh0 v1.6.0.
Building a Serverless File Manager: How Dual Audits Caught a Path Namespace Bug Before It Shipped
We built a file manager for Deno serverless functions inside Docker. Two independent AI auditors found 12 issues including a critical path mismatch. Here's how.