Blog
All articles. All pillars. All authors.
Financial Compliance: OHADA 10-Year Retention Rules
How OHADA's 10-year document retention rules shaped 0fee.dev's deletion policy and archive system. By Juste A. Gnimavo and Claude.
Merging the Marketing Website Into the Frontend
How we merged 0fee.dev's separate marketing website into the frontend app, going from 3 services to 2 with 3-layout routing.
WHMCS, WordPress, and WooCommerce Plugins
How we built 3 platform plugins for 0fee.dev -- WHMCS, WordPress, and WooCommerce -- plus downloadable code samples in 5 languages. By Juste A. Gnimavo.
Security Audit: What We Found and How We Fixed It
A transparent look at the security weaknesses we found in 0fee.dev and the systematic fixes we applied. By Juste A. Gnimavo and Claude.
Building 8 SDKs With Zero Human Engineers
How we built 8 SDKs in 7 languages plus 3 platform plugins for 0fee.dev with zero human engineers. By Juste A. Gnimavo and Claude.
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.
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.
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.
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.
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.
PawaPay: Pan-African Mobile Money for 21+ Countries
How 0fee.dev integrates PawaPay's hosted payment page for mobile money across 21+ African countries with correspondent codes.