FeedCity

On selfishly building a business around you.

Over the last few months, all the nerds have gotten excited about Model Context Protocol, or MCP. It's a spec that was designed by Anthropic (the Claude folks) last year to let their LLM know how to ask various apps for information or be able to interact with different syste...

Over the last few months, all the nerds have gotten excited about Model Context Protocol, or MCP. It's a spec that was designed by Anthropic (the Claude folks) last year to let their LLM know how to ask various apps for information or be able to interact with different syste...

Over the last few months, all the nerds have gotten excited about Model Context Protocol, or MCP. It's a spec that was designed by Anthropic (the Claude folks) last year to let their LLM know how to ask various apps for information or be able to interact with different syste...

reject clever

Presently sponsored by: Report URI: Guarding you from rogue JavaScript! Don’t get pwned; get real-time alerts & prevent breaches #SecureYourSite

This has been a very long time coming, but finally, after a marathon effort, the brand new Have I Been Pwned website is now live!

Feb last year is when I made the first commit to the public repo for the rebranded service, and we soft-launched the new brand in

Today's links Who Broke the Internet? Part III: The paradox of "Amazon's Antitrust Paradox." Hey look at this: Delights to delectate. Object permanence: 2005, 2010, 2015, 2020, 2024. Upcoming appearances: Where to find me. Recent appearances: Where I've been. Latest books: Yo...

Some thoughts on implementations

On borrowed time vs earned time.

I’ve spent so much time, had so many headaches, and encountered so much complexity from what, in my estimation, boils down to this: trying to get something to work on multiple computers. It might be time to just go back to having one computer — a personal laptop — do everyth...

how to not refute

From leather shoe bits to the TRS-80

Our societies and governments now largely run on American proprietary big-tech platforms. Many of us want to decrease this dependency, or even end it altogether. Everyone in the open tech scene is full of good intentions and we all want to improve things, but mostly we are not succeeding. By our nature, we would like to build fun, open, federated, and standards-based things. But that’s not enough — that’s not what the world is waiting for (right now).

Today's links Plinkpump linkdump: A blogging sabbath. Object permanence: 2005, 2010, 2015, 2020, 2024 Upcoming appearances: Where to find me. Recent appearances: Where I've been. Latest books: You keep readin' em, I'll keep writin' 'em. Upcoming books: Like I said, I'll keep ...

Over the past few years, Google has done a surprisingly great job of making YouTube less interesting and engaging — and in turn, less addictive. Maybe they've got some ethical guidelines in the top management now? If so, well done, Google. Back in the day, when YouTube was m...

Presently sponsored by: Report URI: Guarding you from rogue JavaScript! Don’t get pwned; get real-time alerts & prevent breaches #SecureYourSite

Funny how excited people can get about something as simple as a sticker. They're always in hot demand and occupy an increasingly large portion of my luggage as we travel around. Charlotte reckoned it would be the same for other merch too, so, while I've been

Using GPS for the most accurate time possible on a Mac

I'm deep in the rabbit hole of all things time and timing. One step on any modern horologist's journey is GPS time.

NIST just put NIST-F4 online, accurate to within 2.2e-16 ppm (that's 0.00000000000000022 seconds. The clock is described in Metrologia thusly:

The fountain uses optical molasses to laser cool a cloud of cesium atoms and launch it vertically in a fountain geometry.

Jeff Geerling May 16, 2025

On building for users, not obeying them.

Installing an outdoor GPS antenna for more accurate time

I've been deep into time and timing lately (more shenanigans coming tomorrow), but today I posted a video covering the install of a PCTEL GPS/GNSS antenna at my studio.

I put up the antenna after realizing how indoor GPS reception is just never that great, due to a variety of factors (like multipath propagation and interference), even if I placed my antennas up in the plenum space right under the roof. Of course, it doesn't help that my studio has a metal roof :)

Jeff Geerling May 15, 2025