Frame – Linux X server in Assembly
isene.org
July 17, 2026
3 min read
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53/100
Summary
Frame is a new X server written in Assembly, designed to minimize dependencies and eliminate unnecessary processes. It operates efficiently by remaining idle when not in use and avoids using a garbage collector.
Key Takeaways
- The author developed a custom X server called "frame" in Assembly, consisting of approximately 20,000 lines of code, with no dependencies or libraries.
- Frame operates with significantly lower CPU usage compared to Xorg, using the same power while idle but consuming almost three times less CPU when not in use.
- The entire software stack, including frame and various tools, is designed to be lightweight, totaling around 100,000 lines of code, which is over fifty times smaller than the previous stack it replaced.
- The software is released into the Public Domain, emphasizing personal control and ownership over the software tailored to the author's specific needs.
Community Sentiment
Positives
- The ability of LLMs to generate assembly code efficiently is a game changer, showcasing their surprising prowess in a domain few programmers even touch anymore.
- There's a palpable excitement in the community about the shift from thinking X11 was too complex to reimplement to now seeing multiple new X servers being built from scratch.
- Using an LLM like Claude to generate assembly is a clever twist that suggests a future where traditional compilers might take a backseat to AI-driven solutions.
Concerns
- Relying on LLMs to produce assembly feels like reinventing compilers but in a slower, less reliable way, raising questions about practicality.
- Some skeptics argue that writing everything in assembly adds unnecessary complexity, suggesting it could hinder optimization opportunities that a more targeted approach would provide.
