Hacker News: mattvr

New comment by mattvr in "Grafeo – A fast, lean, embeddable graph database built in Rust"

mattvr — Sat, 21 Mar 2026 22:20:30 +0000

It implies high performance, reliability, and a higher degree of mastery of the developer.

(Which may not all be true, but perhaps moreso than your average project)

New comment by mattvr in "404 Deno CEO not found"

mattvr — Sat, 21 Mar 2026 16:37:09 +0000

Deno Deploy is actually an excellent product.

My choice ranking is Deno Deploy > Fly.io > AWS for new projects, depending on complexity and needs. They also have a new Deno sandbox feature which is great for running untrusted code, AI agents, etc.

The real question is can they adapt to customer feedback fast enough, focus priorities, adequately market & grow, make it profitable, etc. Bumpy road but definitely not doomed.

[0] https://deno.com/deploy

New comment by mattvr in "WebTransport is almost here to allow UDP-like exchange in the browser"

mattvr — Mon, 17 Nov 2025 22:10:57 +0000

In a nutshell, ideally `peer.connect(remoteId)`. An API like peer-js/simple-peer. And symmetric negotiation would be great as well.

WebRTC should be the universal networking primitive for the next phase of the web, but the API exposes too many implementation details – its abstractions leak.

This plus the overall weight of integrations limit mass adoption by developers.

New comment by mattvr in "WebTransport is almost here to allow UDP-like exchange in the browser"

mattvr — Mon, 17 Nov 2025 18:25:52 +0000

While WebTransport is promising, it's limited to client-server communication unlike WebRTC.

WebRTC supports peer-to-peer UDP connections as well. Thus it's better for use cases like low-latency games, video calling, and secure direct communication between devices.

A better push might be to make WebRTC more simple and modern, but I'm not sure if any standards committees are working on this yet.

New comment by mattvr in "JavaScript Just Leveled Up: ES2025 – You'll Fall in Love With"

mattvr — Fri, 07 Nov 2025 07:37:57 +0000

I believe this article is largely wrong and misleading.

Pattern matching is still Stage 1, meaning it’s not a standard: https://github.com/tc39/proposal-pattern-matching

Pipeline operator is Stage 2 and won’t use the “|>” syntax: https://github.com/tc39/proposal-pipeline-operator

New comment by mattvr in "Solarpunk is happening in Africa"

mattvr — Thu, 06 Nov 2025 08:06:26 +0000

The detectors are wrong. Here’s the thing: AI slop has a distinctive structure that many of us spot from a mile away.

The kicker? This setup-punchline format sets off a red alert for astute readers’ AI detectors.

This isn’t just AI slop, it’s an industrial AI sludge factory.

(note: this was ironically written by a human)

New comment by mattvr in "JSON River – Parse JSON incrementally as it streams in"

mattvr — Mon, 13 Oct 2025 17:33:09 +0000

You could also use JSON Merge Patch (RFC 7396) for a similar use case.

(The downside of JSON Merge Patch is it doesn't support concatenating string values, so you must send a value like `{"msg": "Hello World"}` as one message, you can't join `{"msg": "Hello"}` with `{"msg": " World")`.)

[1] https://github.com/pierreinglebert/json-merge-patch

New comment by mattvr in "Just let me select text"

mattvr — Wed, 24 Sep 2025 20:13:39 +0000

Many mobile apps encounter this because React Native still doesn't have a good solution for selectable text [0].

Workarounds exist [1], but aren't great for text that spans multiple lines and styles.

[0] https://github.com/facebook/react-native/issues/13938

[1] https://github.com/bluesky-social/react-native-uitextview

LLM Latency Leaderboard

mattvr — Wed, 10 Sep 2025 19:32:54 +0000

Article URL: https://llm.orgsoft.org/

Comments URL: https://news.ycombinator.com/item?id=45202511

Points: 2

# Comments: 0

New comment by mattvr in "It's time for modern CSS to kill the SPA"

mattvr — Sat, 26 Jul 2025 11:13:17 +0000

It does appear to be supported by iOS Safari 18.2+, which is the majority of iOS users.

https://caniuse.com/?search=view%20transitions

A world where subscriptions don't suck

mattvr — Thu, 26 Jun 2025 15:33:23 +0000

Article URL: https://nuggetize.com/blog/smart-subscriptions

Comments URL: https://news.ycombinator.com/item?id=44388398

Points: 4

# Comments: 0

New comment by mattvr in "In restaurants, We need a new way to signal that we're ready to pay"

mattvr — Tue, 22 Apr 2025 14:24:10 +0000

At Case Bonita in Denver, you have a flag on your table you can raise to signal to the waiter to come over.

New comment by mattvr in "Show HN: I made Confetti: a configuration language file format"

mattvr — Wed, 02 Apr 2025 09:43:27 +0000

This exists: jsonc – and it's somewhat widely used, such as for VS Code configuration.

New comment by mattvr in "Solarpunk"

mattvr — Mon, 03 Mar 2025 03:57:22 +0000

Also check out the unbranded version: https://www.youtube.com/watch?v=UqJJktxCY9U

New comment by mattvr in "In memoriam"

mattvr — Sun, 23 Feb 2025 21:30:30 +0000

Should order this list by number of affected rather than alphabetical IMO. The 275K monthly user platform is almost hidden relative to the 49 and 300 user examples.

New comment by mattvr in "Show HN: I Built a Reddit-style Bluesky client – still rough, but open to ideas"

mattvr — Sat, 15 Feb 2025 20:04:26 +0000

Excellent idea! I'd focus on the open-sourcing and community elements (e.g. creating feeds) so it can get traction, rather than features like Markdown and longer posts at this stage.

New comment by mattvr in "Show HN: Play with real quantum physics in your browser"

mattvr — Sun, 09 Feb 2025 23:32:14 +0000

Hi real quantum physicist, yup, you pretty much got it. This is a prototype demo of the concept – and is using real IBM quantum computers. The queues are between 10s and 10min generally.

This is explained very closely to what you've said in the "Technical details" help section. Occasionally you'll get a real-time result. I'll check out the links you sent next, thank you!

Do you think qBraid could support this with more real-time latency?

New comment by mattvr in "Show HN: Play with real quantum physics in your browser"

mattvr — Fri, 07 Feb 2025 17:55:45 +0000

Sorry about that. I toned down the animation and fixed the infinite spin issue – curious if it's more comfortable now.

New comment by mattvr in "Show HN: Play with real quantum physics in your browser"

mattvr — Fri, 07 Feb 2025 17:35:17 +0000

Updated to "favors one side 51%".

New comment by mattvr in "Show HN: Play with real quantum physics in your browser"

mattvr — Fri, 07 Feb 2025 16:45:19 +0000

You are precisely right.