Building fast, beautiful, and reliable systems with Flutter & Rust.
After 7 years of grinding — from HTML/CSS to hating JavaScript, through Java, Python, Dart/Flutter + FFI, and finally discovering my true passion in Rust — I founded Cobalt Labs.
I build production-grade applications, high-performance backends, and personal infrastructure tools that I actually use myself.
Private self-hosted cloud storage running on my own laptop HDD.
Drag & drop files from a beautiful Dioxus client → saved securely on real hardware.
Built with Rust + Axum + object_store + Dioxus.
A private, encrypted journaling app with Rust backend (Axum + SQLx) and clean Flutter/Dioxus frontend. Your thoughts stay yours.
Multiple production apps using Flutter for stunning UI and Rust for performance-critical core via FFI.
Scalable microservices and APIs built with Axum, SQLx, and Tokio. Fast, memory-safe, and production ready.
Collection of Data Structures & Algorithms in Rust + various command-line tools for daily use.
Hi, I'm Ibrahim Haji — Founder of Cobalt Labs.
I'm a Flutter + Rust Developer who loves building end-to-end systems. From pixel-perfect mobile apps to high-performance backends and private cloud infrastructure — I focus on performance, privacy, and ownership.
Currently deep into:
- Rust systems programming
- Private cloud & self-hosted infrastructure
- Flutter + Rust FFI bridges
- Future plans: modified Linux kernel in Rust, custom ROMs, and Bevy games
Check out my work: cobalt.vercel.app
- Frontend: Flutter, Dioxus
- Backend: Rust, Axum, SQLx, Tokio
- Infrastructure: object_store, private cloud on real hardware
- Tools: FFI, CLI, DSA in Rust
- Cobalt Cloud — Private cloud (Desktop + Web)
- Secure Journal — Encrypted journaling app
- Cobalt Frontend — Flutter web portfolio (this site)
- Rust Experiments — Algorithms, CLI tools, and low-level systems
More coming soon.
- Multi-HDD cloud pooling
- S3-compatible API layer
- Flutter mobile client with Rust backend
- Bevy game engine projects
- Modified Linux kernel in Rust
- Custom ROM development
These become the foundation of something much bigger.
Made in Pune, Maharashtra with pure Rust love and countless late nights.
If you're also obsessed with building real systems from scratch — feel free to reach out or star the repos.
Ibrahim Haji
Founder, Cobalt Labs
cobaltdev.vercel.app
GitHub: @ibrahim-3595
Made in Rust and Flutter• Powered by Grind • Running on Real Hardware