I have an operating system kernel that I wrote myself; it's called ValiantCore
Developer Finn Dev wrote an operating system kernel called ValiantCore entirely on his own, doing the work on Android without a PC. The kernel currently supports x86 and Intel i386 architectures, with aarch64 support in progress, and includes components like drivers, timers, and exception handling. The source code is available on GitHub.
Background
- Finn Dev is a solo developer who built an OS kernel (ValiantCore) from scratch — an extraordinary undertaking typically done by large teams or over years of study. The kernel runs on x86 and i386 architectures, with aarch64 (ARM 64-bit) support in progress, and includes low-level components like timer drivers, exception handlers, and boot code.
- What makes this noteworthy: he is developing the entire kernel on an Android device (phone/tablet) because he lacks a PC, using tools like a C compiler, assembler, and terminal emulator available on Android. This is highly unconventional — kernel development usually requires a full desktop environment and serious hardware for testing.
- The post appeared on Hacker News, a tech community where such personal engineering projects often attract attention and discussion about technical approaches, tooling constraints, and the learning journey behind them.