Hacker News: jcheng

New comment by jcheng in "Ask HN: Who is using MCP in production?"

jcheng — Fri, 04 Sep 2026 02:25:57 +0000

They probably mean the tool APIs that the MCP server exposes are well designed. Definitely makes a big difference.

New comment by jcheng in "Being ambitious and being a dad"

jcheng — Wed, 19 Aug 2026 11:04:56 +0000

My own accomplishments make me go wheeeee but my kids’ accomplishments, even mundane ones, make me go WHEEEEEEEEE!

New comment by jcheng in "Meta data center water discharges suspended for contaminating water supply"

jcheng — Sat, 04 Jul 2026 18:23:14 +0000

According to the article this is a closed loop cooling system, once it’s up and running it doesn’t use any water. They run water through it during installation and that’s the discharge that they found bacteria in.

New comment by jcheng in "Show HN: Zanagrams"

jcheng — Sun, 28 Jun 2026 22:01:25 +0000

Fun game! On iOS I frequently triggered a double-tap zoom accidentally, and it’s weirdly difficult to zoom back out once that happens (a second double-tap doesn’t work, and pinch to zoom out only works in some areas of the page).

New comment by jcheng in "Show HN: Monolisa v3 – a typeface for developers and creatives"

jcheng — Thu, 25 Jun 2026 00:16:55 +0000

https://en.wikipedia.org/wiki/Menu_key is all I can think of, but that was introduced in 1994...

New comment by jcheng in "Pandoc Templates"

jcheng — Sun, 31 May 2026 14:16:34 +0000

I'm curious if Quarto could coordinate all of that for you automatically. It supports both code execution via Jupyter, and output via Typst (including books).

https://quarto.org/docs/computations/python.html

https://quarto.org/docs/output-formats/typst.html

https://quarto.org/docs/books/book-output.html#typst-output

https://quarto.org/docs/output-formats/typst-custom.html#boo...

New comment by jcheng in "Dropbox CEO Drew Houston to step down"

jcheng — Tue, 26 May 2026 22:36:14 +0000

Poor Drew, if only he’d taken Steve’s advice! /s

New comment by jcheng in "Greg Brockman interview [video]"

jcheng — Mon, 25 May 2026 00:01:31 +0000

I think you make a good point but the use of samples in hip hop doesn’t support it; those samples need to be licensed.

New comment by jcheng in "Qwen3.7-Max: The Agent Frontier"

jcheng — Wed, 20 May 2026 17:45:44 +0000

Here are some examples of the questions in the benchmark. If these are representative, they seem pretty cut and dry. https://artificialanalysis.ai/evaluations/omniscience#exampl...

New comment by jcheng in "Disney erased FiveThirtyEight"

jcheng — Tue, 19 May 2026 22:49:00 +0000

"Sometimes you have to change things that are perfectly good just to make them your own." --Jack Donaghy, 30 Rock

New comment by jcheng in "Mercedes-Benz commits to bringing back physical buttons"

jcheng — Mon, 04 May 2026 15:43:22 +0000

Former E36 owner here as well. What are "monkey pissers"?

New comment by jcheng in "Online age verification is the hill to die on"

jcheng — Wed, 29 Apr 2026 17:14:57 +0000

"Disingenuous?" Just because someone finds the style irksome, and chooses to share that here, they're deceptively, calculatingly trying to derail the conversation? That's an extremely cynical and uncharitable take.

If I were the author of the post, I'd value the feedback.

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

jcheng — Sat, 21 Mar 2026 21:26:06 +0000

Open core can work, but you really have to find very strong product market fit on the proprietary side--ideally with features that discriminate between users who are relatively happy to pay and users who are not. (There's a reason "SSO tax" is so common.)

And you really have to believe in open source and have the discipline to keep investing in it, otherwise the temptation is ever present to throw more and more effort and resources into the proprietary parts.

New comment by jcheng in "(Media over QUIC) on a Boat"

jcheng — Wed, 18 Mar 2026 13:50:59 +0000

Quaid Army?

New comment by jcheng in "Pyodide: a Python distribution based on WebAssembly"

jcheng — Tue, 17 Mar 2026 03:17:38 +0000

For that purpose I think most people are using bubblewrap or seatbelt/sandbox-exec with CPython.

New comment by jcheng in "Google just gave Sundar Pichai a $692M pay package"

jcheng — Sun, 08 Mar 2026 20:03:25 +0000

> A percentage taken from the increase of an amount every year, is more than the same percentage taken at the end

It sounds like you're describing a hypothetical tax on unrealized gains? Do you have a link to the Buffet letter?

New comment by jcheng in "Google just gave Sundar Pichai a $692M pay package"

jcheng — Sun, 08 Mar 2026 19:58:23 +0000

You're thinking of realized capital gains, not tax on the exercise/grant. I don't think there is a way to dodge the latter, and you can't take out a loan or pass down options you never exercised or stocks you were never granted.

New comment by jcheng in "Google just gave Sundar Pichai a $692M pay package"

jcheng — Sun, 08 Mar 2026 19:02:35 +0000

Details: $2MM/year in salary, the rest in performance based incentives. The $692MM figure is based on hitting all of the maximums (200% of a few different targets) and is the total for three years.

New comment by jcheng in "I verified my LinkedIn identity. Here's what I handed over"

jcheng — Sat, 21 Feb 2026 20:00:00 +0000

Can you say more? Why isn't it neutral or slightly positive? I would assume that a KYC provider would want to protect their reputation more than the average company. If I were choosing a KYC provider I would definitely want to choose the one that had not been subject to any privacy scandals, and there are no network effects or monopoly power to protect them.

New comment by jcheng in "Cord: Coordinating Trees of AI Agents"

jcheng — Sat, 21 Feb 2026 16:58:43 +0000

That’s what this is. It’s just defining two types of subagent relationship (spawned and forked) and providing the minimal MCP API for controlling them. It’s up to the LLMs when and how to use subagents.