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# NightRun UEFI application boots a local LLM on Raspberry Pi 5 and x86 PCs without an OS

**[CNX Software](https://daily.dev/sources/cnx-software)** · 3 min read · 0 upvotes · 0 comments

## Summary

NightRun is an experimental open-source UEFI application that boots a local LLM directly from a USB drive or microSD card without any conventional operating system. Written in Rust, it eliminates the OS layer entirely — no Linux kernel, scheduler, or network stack — freeing up RAM and memory bandwidth for AI inference. It supports x86_64 UEFI PCs and Raspberry Pi 5, and can run quantized models including Llama 3.2 1B/3B, Granite 4.1 3B, and Qwen3 4B. Models are loaded into RAM at boot with CRC-32 verification, and storage is sealed afterward. Inference uses AVX2/FMA/F16C on x86 and NEON on ARM. Performance on an 8GB Raspberry Pi 5 reaches ~3 tokens/sec for a 3B model. A built-in framebuffer chat UI is included. The project is MIT-licensed and available on GitHub.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://www.cnx-software.com/2026/07/30/nightrun-uefi-application-boots-a-local-llm-on-raspberry-pi-5-and-x86-pcs-without-an-os>

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---

Tags: [#llm](https://daily.dev/tags/llm), [#rust](https://daily.dev/tags/rust), [#raspberry-pi](https://daily.dev/tags/raspberry-pi), [#ai-inference](https://daily.dev/tags/ai-inference)

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