TinyOS – A minimalist RTOS for Cortex-M written in C
Contribute to cmc-labo/tinyos-rtos development by creating an account on GitHub.
TinyOS – A minimalist RTOS for Cortex-M written in C launched on April 3, 2026 with 102 votes, #399 of 21,248 launches that month and more than 95% of that year's launches.
In plain words
TinyOS is a real-time operating system designed for ARM Cortex-M microcontrollers, written entirely in C. It targets embedded systems developers who need a lightweight kernel without unnecessary complexity. The system prioritizes minimal resource usage while providing essential RTOS features for time-critical applications on resource-constrained devices.
written from the facts on this page · September 2026
Does a similar job
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Tiny C runtime Linux (rt0), HelloWorld 0.6k (i386), sbrk example added2015 · github.com · ▲49A minimal C runtime for Linux i386 & x86_64. Contribute to lpsantil/rt0 development by creating an account on GitHub.
Anos – a hand-written ~100KiB microkernel for x86-64 and RISC-VApr 2026 · github.com · ▲115I pretty much always have a kernel project going on, and have been that way for decades. Over the past couple of years, that's been Anos, which has gotten further along than any of my previous hobby kernels, supporting IPC, multitasking, SMP (x86-64 only right now) and running on real hardware. LLMs (mostly Claude Code) have been used during development, but I learned early on that it's not _great_ at code at this level, so I've restricted its use to mostly documentation and tests. There's _a little_ AI code in the user space, but I have a strict "no AI code" rule in the kernel itself. I…
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1. Single universal binary, that can be natively executed on every hardware platform Mac OS X was made for (32/64 bit, PowerPC/x86/AppleSilicon). 2. Minimalistic gadget-style design. If launched as a tool, there is no menubar, no dock icon, no nothing, just the clock window. 3. Support for hidpi and dark mode for environments, that have them. 4. Window title bar for moving the window with a mouse, and a handle to resize it (latter for OS versions, that have it). 5. Can be easily ported to GNUStep and thus other OSes (sources under GPLv3). 6. Simple Makefile build system.
TinyGo – LLVM-based Go compiler for microcontrollers2018 · github.com · ▲177Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM. - tinygo-org/tinygo
MyraOS – My 32-bit operating system in C and ASM (Hack Club project)Oct 2025 · github.com · ▲247Hi HN, I’m Dvir, a young developer. Last year, I got rejected after a job interview because I lacked some CPU knowledge. After that, I decided to deepen my understanding in the low level world and learn how things work under the hood. I decided to try and create an OS in C and ASM as a way to broaden my knowledge in this area. This took me on the most interesting ride, where I’ve learned about OS theory and low level programming on a whole new level. I’ve spent hours upon hours, blood and tears, reading different OS theory blogs, learning low level concepts, debugging, testing and working on…
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Source: Show HN post ↗
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