I'm a software engineer in Ho Chi Minh City building practical developer utilities, backend systems, and small internet products. I like tools that are fast to open, useful without ceremony, and calm enough to become part of a daily workflow.
Toolover is my current product focus: a suite of free browser-first developer tools for JSON, code formatting, API helpers, text utilities, and everyday workflow cleanup.
I'm also exploring other small developer-product experiments around useful, public, no-login software.
| Repository | Signal | What it is |
|---|---|---|
| programing-best-practices | 661 stars · 98 forks | Programming best practices for beginners |
| AI-Powered-Coding-Tools | 86 stars · 13 forks | Best practices for working with AI-powered coding tools |
| derek-power | 16 stars · 4 forks | A structured development workflow power for Kiro |
| email_detected | 9 stars · 5 forks | Ruby gem for checking whether an email address exists |
| threads_client_ruby | 4 stars | Unofficial Ruby client for Meta Threads |
| Area | Tools |
|---|---|
| Backend | Ruby, Go, Node.js |
| Frontend | React, JavaScript, HTML, CSS |
| Data | PostgreSQL, MySQL, Redis |
| Cloud | AWS, Google Cloud, DigitalOcean |
| Product mode | Ship small, useful, public |
- Building: toolover.work
- Writing: dereknguyen.substack.com
- Social: x.com/dereknguyen269
- GitHub: @dereknguyen269
Browse my repositories or recent public activity for the current trail of projects and experiments.
I like coffee, developer tools, and the kind of engineering work that quietly saves people time.