Hacker News: kevsim

New comment by kevsim in "Breaking Claude Code Opus 5 Auto Mode"

kevsim — Mon, 31 Aug 2026 10:33:34 +0000

The point is that auto mode gives people a false sense of security that leads them to believe they don't need to run Claude in a proper sandbox. This same attack running in a sandbox (even in YOLO mode) would be comparatively harmless.

New comment by kevsim in "Don't Wordle"

kevsim — Tue, 25 Aug 2026 12:42:17 +0000

It didn't let me guess things that had already been eliminated with gray tiles.

New comment by kevsim in "Atlassian Rovo Exfiltrates Data, Bypassing Controls"

kevsim — Thu, 06 Aug 2026 13:09:36 +0000

It's more interesting if I attach a file to a JIRA ticket that we both have access to and via some query you send to the AI (that returns my malicious ticket) it causes data exfiltration of tickets that you have access to but I do not have access to. I think that's more compelling as an example than the one they provide.

New comment by kevsim in "How do wombats poop cubes? (2021)"

kevsim — Thu, 02 Jul 2026 10:29:37 +0000

They eat six square meals a day!

I'll leave now...

New comment by kevsim in "The founder's playbook: Building an AI-native startup"

kevsim — Wed, 17 Jun 2026 10:12:52 +0000

They've got underlines for me at least

New comment by kevsim in "Apple rejected my dictation app for using the accessibility API"

kevsim — Tue, 02 Jun 2026 18:36:11 +0000

Yeah and Soniox is another similar as well, but I checked and neither is available in the AppStore

New comment by kevsim in "I keep tripping over "true, false, true""

kevsim — Mon, 11 May 2026 13:32:38 +0000

This is commonly referred to as "the boolean trap". You'll find lots of articles about it.

Under the hood of MDN's new front end

kevsim — Sun, 19 Apr 2026 07:44:35 +0000

Article URL: https://developer.mozilla.org/en-US/blog/mdn-front-end-deep-dive/

Comments URL: https://news.ycombinator.com/item?id=47822506

Points: 2

# Comments: 0

New comment by kevsim in "The Gleam Programming Language"

kevsim — Wed, 14 Jan 2026 08:37:02 +0000

To use to write coding agents or for coding agents to write code in?

New comment by kevsim in "AI not affecting job market much so far, New York Fed says"

kevsim — Thu, 04 Sep 2025 18:43:22 +0000

Exactly. If they just lay people off, that's just cost cutting, and potentially seen as a bad sign. If they're saying they're laying people off because they're replacing them with AI, then they're innovative!

New comment by kevsim in "Launch HN: Haystack (YC S24) – Visualize and edit code on an infinite canvas"

kevsim — Thu, 26 Sep 2024 09:59:45 +0000

Last I checked Miro also uses Pixi so that's another quality infinite canvas app.

New comment by kevsim in "Prompt Caching"

kevsim — Mon, 19 Aug 2024 10:18:28 +0000

How is the Anthropic stuff on Bedrock in general? We're using OpenAI stuff on Azure right now and it's frustrating how slowly stuff gets rolled out in our region(s).

New comment by kevsim in "CSS Grid Areas"

kevsim — Fri, 16 Aug 2024 07:15:40 +0000

The main reason I tend to reach for grid is responsiveness. Makes it way easier to change the layout at different screen sizes.

New comment by kevsim in "Verso – Web browser built on top of the Servo web engine"

kevsim — Sun, 11 Aug 2024 19:37:16 +0000

FWIW Ladybird is also built by people with actual browser engine experience

New comment by kevsim in "Ask HN: Changing my mind about JavaScript"

kevsim — Fri, 09 Aug 2024 10:12:46 +0000

Render most of the frontend server-side and just use JavaScript for the dynamic bits only, I guess? I personally haven't done it like this since the advent of SPAs, but I'm guessing lots of things are still built like this.

New comment by kevsim in "Show HN: Iso20022.js – Create payments in 3 lines of code"

kevsim — Tue, 06 Aug 2024 07:59:38 +0000

What makes node inherently unsuitable for finance software?

New comment by kevsim in "Ice – open source menu bar manager for macOS"

kevsim — Fri, 07 Jun 2024 07:42:44 +0000

Why do these apps require screen recording permissions to work? Just curious.

New comment by kevsim in "Show HN: File0 – An easier way to manage files in serverless apps"

kevsim — Tue, 28 May 2024 10:52:55 +0000

Guessing it reads some credentials out of environment variables. The client side example shows the server issuing a token so I guess it's only the server that has/needs the credentials.

New comment by kevsim in "You Might Not Need a CRDT: Document Sync in the Wild [video]"

kevsim — Wed, 06 Mar 2024 15:29:28 +0000

When we built Kitemaker [0] we elected to not use CRDTs. We built our sync engine after reading the blog article Figma wrote about they didn't need CRDTs because they have the server arbitrating any conflicts. We ended up taking the same approach. It's worked out very well for us though in a tool like our "last one in wins" generally works fine and doesn't lead to a lot of surprises.

For documents, we had to do something more sophisticated. At the time we built our collaborative text editing, the prevailing opinions were that CRDTs were inferior for text editing so we ended up going with Operational Transforms. That took a LOT of work to get right and is still problematic from time to time. If we had it to do all over again now, we'd definitely challenge that decision (and may do so in the future anyway even though we have a system that works).

0: https://kitemaker.co

New comment by kevsim in "Is Tableau Dead?"

kevsim — Tue, 27 Feb 2024 08:23:19 +0000

Slack seems to be surviving thus far at least