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Blog · 11

Writing

Notes on building products: architecture, frontend, backend and what I learn shipping software.

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  1. Oct 13, 2026

    4 min read

    Ever Gauzy is free software that runs a whole company — HR, clients, projects, hours and invoices — in one place. What makes it different, the 53 improvements I contributed, and what I learned.

    • Open Source
    • NestJS
    • TypeORM
    • MikroORM

  2. Oct 13, 2026

    5 min read

    SurfSense lets you ask questions to your documents and get sourced answers — without anything leaving your computer. Why it matters, how I helped make it safer, and what I learned.

    • Open Source
    • Python
    • FastAPI
    • Security

  3. Oct 13, 2026

    4 min read

    AI coding assistants can now run commands on your computer. Memnox decides what they may do — with fixed rules and an undo button. What it is, the loopholes I closed, and what I learned.

    • Open Source
    • Security
    • TypeScript
    • MCP

  4. Oct 13, 2026

    5 min read

    React Native and Expo let one team build iPhone and Android apps with the same code. What makes them innovative, the fixes I contributed to Expo and React Native, and what I learned.

    • Open Source
    • React Native
    • Expo
    • Kotlin

  5. Oct 13, 2026

    5 min read

    SOS Academy helps beginners learn by working on real open-source projects, with a mentor. Why the idea works, the features I built for its platform, and what I learned.

    • Open Source
    • NestJS
    • MongoDB
    • Next.js

  6. Oct 11, 2026

    8 min read

    I coded for passion, then to learn, then for money, then for reputation. Only at the last step did I understand the rule that makes programming pay: once you have the skills, build only to solve a real problem. Five stages, one lesson.

    • Career
    • Business
    • SaaS
    • Freelance

  7. Oct 04, 2026

    2 min read

    In many Congolese schools the connection drops several times a day. Here is how I designed Masomo so attendance, grades and the cash desk never wait for the network.

    • Offline-first
    • Next.js
    • PWA
    • EdTech

  8. Sep 24, 2026

    2 min read

    In Goma, a customer can pay half in CDF and half in USD. Floats, rounding and moving exchange rates will quietly break your books. Here is the model I use.

    • Fintech
    • Multi-currency
    • PostgreSQL
    • TypeScript

  9. Sep 13, 2026

    2 min read

    Hela, Nunua and Safirisha all let one account run several businesses. The hard part is not the feature — it is making sure company A can never read company B.

    • Nest.js
    • PostgreSQL
    • Multi-tenant SaaS
    • Security

  10. Aug 30, 2026

    2 min read

    Web, desktop, mobile and server in one repository, contributors in several time zones. Notes from working on Ever Teams and Ever Gauzy.

    • Open Source
    • Monorepo
    • Next.js
    • React Native

  11. Aug 16, 2026

    1 min read

    Serverless functions cap request bodies at a few megabytes, and phone photos are bigger. Signed direct uploads fix it without exposing your secret.

    • Next.js
    • Cloudinary
    • Serverless
    • Security