Blog
All articles. All pillars. All authors.
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.
16 Commands in One Day: The Complete CLI Story
How we built 16 CLI commands, 2 server endpoints, and a WebSocket streaming system -- audited through 6 independent sessions -- in a single day of AI-assisted development.
From 10 Commands to 30: The Developer Ergonomics Sprint
How we added sh0 init, link, open, and config -- four commands that make the sh0 CLI feel like a native part of the developer's workflow, not an afterthought.
WAL Race Conditions and SQLite Lessons
The WAL mode race conditions that plagued 0fee.dev's SQLite database and ultimately pushed us to PostgreSQL. By Juste A. Gnimavo.
Why We Built a Payment Orchestrator From Scratch
Why we built 0fee.dev, a payment orchestrator covering 53+ providers across 200+ countries. By Juste A. Gnimavo and Claude, from Abidjan.
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.
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.
What's Next for 0fee.dev
The roadmap for 0fee.dev: subscriptions, payouts, dispute management, more African providers, and multi-currency wallets. By Juste A. Gnimavo.
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.
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.
App Lifecycle From the Terminal
How we built sh0 restart, stop, start, delete, and domains -- five CLI commands for managing application lifecycle with safety-first confirmation patterns.
The Pricing Evolution: From Tiers to 0.99%
How 0fee.dev's pricing evolved from 3 tiers to a flat 0.99% fee with no monthly charges and infinite credit. By Juste A. Gnimavo.