Top all-time · #10435
Linus's blog
Personal blog · linus.schreibt.jetztsystemsprogramming
Linus's blog is a personal blog at linus.schreibt.jetzt about systems and programming. Since 2022, 7 different Hacker News readers have linked it 14 times, most often “Digging into a QEMU problem of slow data copying”. It is still writing: the last post was on 2026-01-09, and you can follow it by feed.
Too few sampled comments (1) to say how often HN recommends it.?
Why HN links it
HN readers link Linus's writeup on keeping secrets away from AI coding agents. It covers avoiding non-exported shell variables as a way to mitigate agents reading secrets like .env files.
Summarised by Claude from a sample of 1 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Most-linked posts?
- Digging into a QEMU problem of slow data copying3 people · 3 mentions · first linked 2022-10-13
- How can I boot NixOS? Let me count the ways (2022)2 people · 2 mentions · first linked 2022-12-07
- Switching between code variants using comments2 people · 2 mentions · first linked 2024-04-01
- Handling secrets (somewhat) securely in shells2 people · 2 mentions · first linked 2026-01-09
What Hacker News says?
Great question! You might enjoy this writeup, which in one section explores avoiding the use of shell variables that are not exported as a method of mitigating this risk. https://linus.schreibt.jetzt/posts/shell-secrets.html
Comment linking /posts/shell-secrets.html
on “Bubblewrap: A nimble way to prevent agents from accessing your .env files”Submitted Digging into a QEMU problem of slow data copying as a story · 190 points
HN discussionSubmitted Make your QEMU faster (2022) as a story · 150 points
HN discussionSubmitted Odd intersections: Navidrome, Loki, jq and ListenBrainz as a story · 3 points
HN discussionSubmitted Make your QEMU 9p server 10 times faster with this one weird trick as a story · 3 points
HN discussionSubmitted How to debug your initramfs init as a story · 3 points
HN discussionSubmitted Switching between code variants using comments as a story · 2 points
HN discussionSubmitted Switching between code variants using comments as a story · 2 points
HN discussionSubmitted Building Ubuntu Images in Nix as a story · 2 points
HN discussionSubmitted Get All Your Sources as a story · 2 points
HN discussionSubmitted Back to Ubuntu: Linux dual-boot, but cheaper as a story · 2 points
HN discussionSubmitted Handling secrets (somewhat) securely in shells as a story · 1 points
HN discussionSubmitted How can I boot NixOS? Let me count the ways (2022) as a story · 1 points
HN discussionSubmitted How can I boot NixOS? Let me count the ways as a story · 1 points
HN discussion