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Run DOOM inside the Linux kernel with eBPF using LLM help

After stalling on a by-hand attempt, the author returned with LLM help to virtualize memory access and work around eBPF limits, getting DOOM running in the kernel as eBPF fibers.

See pricing pageA few monthsAdvancedSource linked

Source

ayles on Hacker News · 2026-09-09 · Project link

Written in our own words. Credit to the original author. Link checked 2026-10-16.

What they did

After stalling on a by-hand attempt, the author returned with LLM help to virtualize memory access and work around eBPF limits, getting DOOM running in the kernel as eBPF fibers.

Result (as claimed)

Write-up and demo published; 53 points on Show HN.

Tools they used

Cost: Pricing depends on the tools you pick; check each official pricing page.

Set it up

  1. Pick a contained repo or task

    Start on a branch or side project where mistakes are cheap.

  2. Install and configure

    Set up Claude. Read what it can run on your machine and limit permissions where possible.

  3. Run it on a real task

    Give it a well-scoped issue and let it work. Review the diff like any pull request.

  4. Add guardrails

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Goal: Run DOOM inside the Linux kernel with eBPF using LLM help
What the original author did: After stalling on a by-hand attempt, the author returned with LLM help to virtualize memory access and work around eBPF limits, getting DOOM running in the kernel as eBPF fibers.
Reported result (as claimed by the author): Write-up and demo published; 53 points on Show HN.
Source: https://news.ycombinator.com/item?id=49630125
Tools they used: Claude
Category: Dev & ops

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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