Hacker News: jasonpeacock

New comment by jasonpeacock in "Running out of disk space in production"

jasonpeacock — Tue, 07 Apr 2026 17:57:22 +0000

> A neat trick I was told is to always have sleep statements in your code. Just a few sleep statements that you can delete in cases like this. This won't fix the problem, but will buy you time and free up latency for stuff like slow algorithms so you can get faster code.

FTFY ;)

New comment by jasonpeacock in "Improving my focus by giving up my big monitor"

jasonpeacock — Fri, 03 Apr 2026 16:47:18 +0000

My viewing distance is one-arm-length (kinda close), when I raise my arm my fingertips just touch the screen. Definitely closer than my previous monitor, as you need to sit within the curved-screen radius to be in the sweet spot.

Looks like it's 32:9 aspect ratio - it's this Samsung, it was on sale last week for $800: https://a.co/d/0f884LPO

New comment by jasonpeacock in "Improving my focus by giving up my big monitor"

jasonpeacock — Fri, 03 Apr 2026 16:03:26 +0000

I just upgraded to a 49" curved display because it lets me view everything I need _for the current task_ at one time.

One virtual desktop is Messages, Slack, and Outlook for all my comms needs.

Another is IDE & browser for development work.

Another is todo list, planner, notes, and browser for task management.

Having to constantly swap app between browser, email, IDE, slack, etc is interruptive. Being able to switch to a single-focus desktop with everything visible is much more productive for me and reduces context switching.

New comment by jasonpeacock in "Ninja is a small build system with a focus on speed"

jasonpeacock — Mon, 30 Mar 2026 16:22:41 +0000

My guess is that it's for drop-in compatibility with make.

There is (at least) one open issue about this - the solution/alternatives are not trivial:

https://github.com/ninja-build/ninja/issues/1459

New comment by jasonpeacock in "Sed, a powerfull mini-language from the 70s"

jasonpeacock — Mon, 23 Mar 2026 16:31:26 +0000

Long ago, I bought the O'Reilly "Sed & Awk" book with plans to become a true unix guru.

Then I realized I already knew Perl (and Perl one-liners), so there it sat unused on the shelf.

New comment by jasonpeacock in "A rogue AI led to a serious security incident at Meta"

jasonpeacock — Thu, 19 Mar 2026 19:18:46 +0000

I'm concerned that someone had the permissions to make such a change without the knowledge of how to make the change.

And there was no test environment to validate the change before it was made.

Multiple process & mechanism failures, regardless of where the bad advice came from.

New comment by jasonpeacock in "BuildKit: Docker's Hidden Gem That Can Build Almost Anything"

jasonpeacock — Fri, 27 Feb 2026 02:57:45 +0000

Flakes fixes this for Nix, it ensures builds are truly reproducible by capturing all the inputs (or blocking them).

New comment by jasonpeacock in "BuildKit: Docker's Hidden Gem That Can Build Almost Anything"

jasonpeacock — Thu, 26 Feb 2026 15:49:40 +0000

You can network-jail your builds to prevent pulling from external repos and force the build environment to define/capture its inputs.

BuildKit: Docker's Hidden Gem That Can Build Almost Anything

jasonpeacock — Thu, 26 Feb 2026 14:05:46 +0000

Article URL: https://tuananh.net/2026/02/25/buildkit-docker-hidden-gem/

Comments URL: https://news.ycombinator.com/item?id=47166264

Points: 223

# Comments: 77

New comment by jasonpeacock in "The 7-Year Bug That Took 3 Minutes to Fix"

jasonpeacock — Tue, 24 Feb 2026 21:58:57 +0000

I’m curious why they didn’t deploy diagnostics in the field if they couldn’t replicate in the lab?

Every few months for 7yrs is a lot of opportunities to iterate on collecting field measurements. And it could be done in a holistic way that doesn’t break the safety certification.

New comment by jasonpeacock in "Infrastructure decisions I endorse or regret after 4 years at a startup (2024)"

jasonpeacock — Fri, 20 Feb 2026 02:22:26 +0000

I’ve always that forums are much better suited to corporate communications than email or chat.

Organized by topics, must be threaded, and default to asynchronous communications. You can still opt in to notifications, and history is well organized and preserved.

New comment by jasonpeacock in "Infrastructure decisions I endorse or regret after 4 years at a startup (2024)"

jasonpeacock — Fri, 20 Feb 2026 02:20:42 +0000

The bullet points for using Slack basically describe email (and distribution lists).

It’s funny how we get an instant messaging platform and derive best practices that try to emulate a previous technology.

Btw, email is pretty instant.

New comment by jasonpeacock in "A header-only C vector database library"

jasonpeacock — Sat, 14 Feb 2026 21:27:00 +0000

C libraries have advertised "header-only" for a long time, it's because there is no package manager/dependency management so you're literally copying all your dependencies into your project.

This is also why everyone implements their own (buggy) linked-list implementations, etc.

And header-only is more efficient to include and build with than header+source.

New comment by jasonpeacock in "How did the Maya survive?"

jasonpeacock — Fri, 13 Feb 2026 17:30:30 +0000

1491 is a great book about the history of the Americas before Columbus.

https://a.co/d/03l04Lvv

New comment by jasonpeacock in "Company as Code"

jasonpeacock — Thu, 05 Feb 2026 15:09:06 +0000

Licensing generally applies only to the thing being licensed and not its output.

Otherwise all software written with a GPLv3 editor would also be GPLv3…or all software built with a GPLv3 compiler would be GPLv3. (Neither are true)

New comment by jasonpeacock in "Data centers in space makes no sense"

jasonpeacock — Tue, 03 Feb 2026 22:12:31 +0000

> No cooling necessary.

This is false, it's hard to cool things in space. Space (vacuum) is a very good insulator.

3 are ways to cool things (lose energy):

  - Conduction
  - Convection
  - Radiation

In space, only radiation works, and it's the least efficient of those 3 options.

New comment by jasonpeacock in "Stargaze: SpaceX's Space Situational Awareness System"

jasonpeacock — Fri, 30 Jan 2026 20:21:37 +0000

Maybe I misinterpreted the statement - I thought it was talking about the time from detection to sending the command to the satellite, not the time until the satellite actually took action.

New comment by jasonpeacock in "Stargaze: SpaceX's Space Situational Awareness System"

jasonpeacock — Fri, 30 Jan 2026 17:09:49 +0000

> react within an hour of the maneuver being detected

I'm curious at what steps were involved took an hour. Running the calculations should be quick (computers are fast), as is transmitting commands.

This sounds like there's human in the loop that had to make decisions.

Why do RSS readers look like email clients?

jasonpeacock — Wed, 28 Jan 2026 18:05:00 +0000

Article URL: https://www.terrygodier.com/phantom-obligation

Comments URL: https://news.ycombinator.com/item?id=46799178

Points: 19

# Comments: 54

What does it take to ship Rust in safety-critical?

jasonpeacock — Fri, 16 Jan 2026 13:50:58 +0000

Article URL: https://blog.rust-lang.org/2026/01/14/what-does-it-take-to-ship-rust-in-safety-critical/

Comments URL: https://news.ycombinator.com/item?id=46646319

Points: 3

# Comments: 0