Hacker News: masterj

New comment by masterj in "You said no MCP"

masterj — Thu, 01 Oct 2026 01:31:33 +0000

You could serve MCP over HTTP 8+ months ago and deal with none of that? Lots of people did? Especially internally within Enterprise

New comment by masterj in "Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls"

masterj — Thu, 10 Sep 2026 13:27:14 +0000

I have this one in Canada. Works well!

But having water leave the building envelope is a bit scary on very cold days. There are heat traces and freeze valves so it should be fine, but I do worry about power outages during cold snaps

New comment by masterj in "VMs won't contain cyber-capable agents"

masterj — Wed, 26 Aug 2026 19:32:01 +0000

That's a really interesting project! Being able to assert more, statically, about what our software is doing seems like a real growing need

New comment by masterj in "VMs won't contain cyber-capable agents"

masterj — Wed, 26 Aug 2026 18:56:38 +0000

I suspect capability models are going to get more popular https://en.wikipedia.org/wiki/Capability-based_security

New comment by masterj in "VMs won't contain cyber-capable agents"

masterj — Wed, 26 Aug 2026 17:02:03 +0000

Outside of the initial wave of security vulnerabilities and scrambling, it seems like the logical outcome of this over time is likely vastly more secure vm environments?

Rebuilding my local OpenTelemetry viewer on DuckDB

masterj — Tue, 25 Aug 2026 16:23:37 +0000

Article URL: https://ctrlspice.codes/rebuilding-otel-desktop-viewer/

Comments URL: https://news.ycombinator.com/item?id=49436592

Points: 3

# Comments: 0

New comment by masterj in "Fast drilldown dashboards from a single Parquet file"

masterj — Mon, 24 Aug 2026 17:49:29 +0000

Cloudflare Pipelines has a configurable interval to write to parquet files that's as low as 10s: https://developers.cloudflare.com/pipelines/sinks/available-... so you could have a pretty fast refresh

It will cost (slightly) more to write this frequently to R2 since you are charged per-write, but this is something you can tune.

New comment by masterj in "typ.ing"

masterj — Sat, 22 Aug 2026 20:36:21 +0000

I second the recommendation. I use the Voyager, and it's a delight! I switched when I was suffering from a lot of wrist pain, and it's never come back. I only wish they offered a wireless version for a cleaner desk.

I landed on the Ambients Twilight silent switches https://lowprokb.ca/collections/switches/products/ambients-s...

New comment by masterj in "OTel isn’t going well"

masterj — Sat, 22 Aug 2026 19:59:28 +0000

You are essentially describing a proto-tracing system. At the risk of self-promoting twice in one comments section, I have a post walking through going from what you describe above to OTel-compatible tracing: https://jeremymorrell.dev/blog/minimal-js-tracing/

You are right that what you were doing is very similar! However standardization helps a lot here.

New comment by masterj in "OTel isn’t going well"

masterj — Sat, 22 Aug 2026 18:59:10 +0000

D'aww, thank you! I'm hoping to find time to write more this year

New comment by masterj in "OTel isn’t going well"

masterj — Sat, 22 Aug 2026 04:25:49 +0000

HN always grumbles about OTel, but I agree. It's fine, and important: https://jeremymorrell.dev/blog/opentelemetry-and-the-value-o...

I understand the author's perspective in the linked article, but none of that data shows a project in trouble? Some languages have more resources than others, but those all look like healthy open source projects

New comment by masterj in "Extensible Software in the age of LLMs"

masterj — Wed, 19 Aug 2026 20:39:44 +0000

As the author I’d say it’s more of an ad for sandboxes + the idea of OCaps

Unless I’ve missed something obvious in my research, Dynamic Workers are the main product implementing this pattern today, but I expect there will be others for all the reasons I laid out in the article.

New comment by masterj in "Extensible Software in the age of LLMs"

masterj — Wed, 19 Aug 2026 20:33:23 +0000

For client side there is https://hardenedjs.org/

And Cloudflare OS does some fancy things with iframes + capnweb iirc

Extensible Software in the Age of LLMs

masterj — Tue, 18 Aug 2026 13:25:03 +0000

Article URL: https://jeremymorrell.dev/blog/extensible-software-in-the-age-of-llms/

Comments URL: https://news.ycombinator.com/item?id=49345304

Points: 2

# Comments: 0

New comment by masterj in "Retro-Tech Parenting"

masterj — Thu, 04 Jun 2026 22:45:24 +0000

This is true, but it varies a lot based on local culture. "Let me buzz 'em / roll coal to teach 'em a lesson"

but you're not really going to see that in, say, Seattle

New comment by masterj in "Retro-Tech Parenting"

masterj — Thu, 04 Jun 2026 21:06:28 +0000

I’m sorry this happened to you. However nothing in my reply implies cutting your children off from the world. Helping them avoid the harms of algorithmic feeds until they have developed the maturity to navigate them helps them be more connected to the world, not less.

With all due respect I think you are reading more there due to your own experiences, which sound like abuse, not parenting.

New comment by masterj in "Retro-Tech Parenting"

masterj — Thu, 04 Jun 2026 20:30:48 +0000

Protecting your kids from dopamine-drip algorithms and the effects of social media and short-form video during their most formative years and gradually letting them take over as they mature sounds like… parenting.

New comment by masterj in "The real cost of owning a home"

masterj — Tue, 26 May 2026 18:19:31 +0000

I learned very fast after purchasing my home that hiring out to a contractor made so much more sense. They can get done in a day what would take me a month+ of weekends.

New comment by masterj in "How to convert between wealth and income tax"

masterj — Fri, 22 May 2026 20:51:28 +0000

pg seems to think we would be scandalized by this math, when all I feel is “so?”.

The language politicians use to sell to a general public does not have any correlation to their understanding of the mechanics. The people proposing this policy entirely understand the ramifications. That is the point of the policy.

The average person is already subject to something like a wealth tax through property taxes, in addition to also needing to pay taxes on their income. Join the club pal.

New comment by masterj in "The bespoke software revolution? I'm not buying it"

masterj — Fri, 20 Mar 2026 22:23:05 +0000

I could be wrong, but my understanding is that when people talk about the Death of SaaS, they are not talking about $20/month consumer apps. They are talking about six-figure+ enterprise deals that are the source of so much profit for SaaS companies.