Blog
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When pg_dump Cannot Find Your Database
pg_dump failed with "database flin-postgres does not exist" because the backup engine used the app name instead of POSTGRES_DB. Here is the env var decryption pipeline that fixed it.
The Backup Engine That Never Backed Up
We built a complete backup engine with 13 storage providers and AES-256 encryption. Then we clicked "Backup Now" and nothing happened. Here is everything that was broken.
The UI That Looked Complete
The backup dashboard had modals, CronBuilder, 3-step wizards, and a schedule table. Everything looked finished. Nothing worked. Here is what we fixed.
We Built Intercom Before We Built a Chat Widget
How we spent months building a 17-module AI platform with 50+ agents and 3,300-line landing pages -- then built a better helpdesk widget in one afternoon.
Why I Built My Own AI Helpdesk Instead of Paying for One
Why I built an AI-powered live chat widget for sh0.dev instead of paying $50/month for Intercom -- and how it costs $0.002 per conversation.
From Docs Chatbot to Live Support Agent
How we turned sh0's existing AI docs assistant into a public helpdesk widget with 9 files, zero new infrastructure, and the same SSE streaming pipeline.
Two Critical Bugs in a Public AI Widget
How two independent audit sessions found an XSS vulnerability and a billing bypass in a public-facing AI helpdesk widget -- and why the builder missed both.
Docker Production Deployment for EasyPanel
How we containerized 0fee.dev with Docker for EasyPanel deployment across 3 services with nginx and security headers. By Juste A. Gnimavo.
Amount Display Bugs: When 5 USD Shows as 0.05
The amount display bugs that plagued 0fee.dev: wrong divisions, integer vs float, and how we fixed them across 50+ files. By Juste A. Gnimavo.
Fixing Infinite Loops and 500 Errors
The infinite loops and 500 errors that struck 0fee.dev across multiple sessions, and how we traced and fixed each one. By Juste A. Gnimavo.
The API Playground: Interactive API Testing
How we built the 0fee.dev API Playground with 17 endpoints, JSON highlighting, cURL export, and request history. By Juste A. Gnimavo and Claude.
Seven SDKs in Seven Languages
How we built 7 SDKs for 0fee.dev in TypeScript, Python, Go, Ruby, PHP, Java, and C# across two sessions. By Juste A. Gnimavo and Claude.