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Agreed. I am excited to see what changes appear. I did enjoy the "One more thing" + smirk bit too.

Hahaha! Can you imagine..

I was a fan since university when someone down the corridor would have The Rocky Horror Picture Show playing all the time...

Imagine my delight at seeing him on a packed London Tube one morning on my way to work. He asked to get by and I said something like "Just a jump to the left, and then a step to the right?" waiting for him to burst into song with the whole carriage joining in..

He just scowled and pushed past - still made my day though :)

callumprenticeon WhatCable: Know what your USB-C cable can do

That's great. Thank you for the feedback - I ordered one just now.

callumprenticeon WhatCable: Know what your USB-C cable can do

Nod - that's what I was thinking. I expect it's often the connectors that deteriorate so perhaps moving them around while plugged in would tell me. Seems like a useful tool to have around.

callumprenticeon WhatCable: Know what your USB-C cable can do

Would this tell me if a cable is close to the end of it's life? I like to travel light and I've had cables (mostly phone/pad power) go out on trips after working as expected when I packed.

callumprenticeon Building an HTML-first site doubled our users overnight

Excellent article but I am always torn when I read inspirational articles like this - it makes perfect sense to me and I love the idea of simple, non-nonsense sites that work well, load quickly and don't rely on the latest browsers to function.

Then I start to wonder if that's just because I'm not smart enough to understand React or whatever the fancy technology of the day is.

Feels like I have a hard understanding threshold that cannot be breached - give me a simple editor like Sublime and ask me to make a web page - even with JavaScript - and it's my happy place. Give me VSCode or Zed, Claude/Copilot/ChatGPT plugins everywhere, React tutorials and my brain goes to mush.

callumprenticeon Guy builds AI driven hardware hacker arm from duct tape, old cam and CNC machine

I figured this was some kind of home-grown prosthetic arm whose wearer could, using AI, draw any artwork online, speak ASL, perform minor surgery on themselves and so much more so long as their supply of tokens lasted.

Perhaps a smidge disappointed when I had a look and discovered it wasn't that :)

callumprenticeon Show HN: 41 years sea surface temperature anomalies

I made something like this (in the VERY broadest sense) 10 years ago - inspired me to revisit and update both visuals and data (a lot has changed in that time).

https://callumprentice.github.io/apps/global_temperature_cha...

and

https://callumprentice.github.io/apps/climate_temperature_ch...

callumprenticeon Show HN: Travel Hacking Toolkit – Points search and trip planning with AI

As someone who do the whole mileage actual thing for many years (millions of Chase and Amex points) but also a family and a full time job - IE 3 seats vs 1 and can’t leave for a trip at the drop of a hat - I’m always astonished by how worthless my miles seem to be.

I’m not convinced it’s all one big scam but a teensie bit hopeful your solution can help. Looking forward to trying. Thank you.

callumprenticeon Aliens.gov ~ domain registered 17MAR2026

Understood. This was in Manhattan Beach which is expensive for everything but still, that delta is incredible.

Actually, I noticed one near there yesterday on PCH (forget which station) was $6.89999 for the good stuff.

callumprenticeon Aliens.gov ~ domain registered 17MAR2026

$6.84999 at the Shell station near my gym this morning.

callumprenticeon Aliens.gov ~ domain registered 17MAR2026

SoCal gas is at least $6.85 a gallon.

callumprenticeon The Met releases high-def 3D scans of 140 famous art objects

Trivial to see the raw GLB files in a Viewer that gives you a bit more control.

https://github.khronos.org/glTF-Sample-Viewer-Release/?model...

callumprenticeon Show HN: Fuzzy Studio – Apply live effects to videos/camera

Also beautifully done. Love it!

callumprenticeon Show HN: Fuzzy Studio – Apply live effects to videos/camera

FWIW, I was able to select a Logitech USB webcam on my Mac mini running Sequoia.

callumprenticeon Show HN: Fuzzy Studio – Apply live effects to videos/camera

So much fun and beautifully implemented.

I wish there was a way to use the output/preview as a virtual camera in Meet, Zoom etc. I could drive my colleagues potty with some of these :)

callumprenticeon Ask HN: Gmail spam filtering suddenly marking everything as spam?

Thank goodness. My Gmail address is my first name so I typically get many hundreds of spam’s a day which are almost all caught. Dozens in my inbox today so I figured something was up. Glad it’s not that the spam pedlars have suddenly gotten clever.

callumprenticeon Ask HN: Share your personal website

I've long admired your work online both for its writing quality and incredible insight.

Thank you for sharing all these years.

callumprenticeon The Jeff Dean Facts

Agreed! I felt the same way but sitting here with my morning coffee chuckling away. A good start to the day.

callumprenticeon Shipmap.org

https://callumprentice.github.io/apps/flight_stream/index.ht...

Something similar but for flights and in 3D.

12 years old now - might be fun to see what new data is out there - real time perhaps - and have another go

callumprenticeon Show HN: Prism.Tools – Free and privacy-focused developer utilities

Phenomenal collection but like the parent of this message, I have many similar sites bookmarked but without a good bookmark manager (Chrome), it's hard to add meta data like "I really like this page's JSON formatter" etc.

I might have a go at a making meta-utility site when you enter names, descriptions, tags etc. of a utility and it lists relevant sites.

To the parent's point about a good DOT COM, I have one that might be perfect since I seem incapable of finishing the project I purchased it for decades ago.

callumprenticeon I switched from VSCode to Zed

Fascinating. Can you share your non-private Zed config? I still have mine from before the switch - I'd like to compare.

callumprenticeon I switched from VSCode to Zed

I'll try that - thank you.

callumprenticeon I switched from VSCode to Zed

I tried Zed for a few months but just couldn't get the JavaScript/Python syntax checking and Prettier type reformatting to work reliably. I would poke at it for a few hours, get it working and then mysteriously, a few days later, it'd stop working again.

I switched to VSCode now and whilst that piece of it seems to be much more reliable, I think overall I prefer the "feel" of Zed.

I've bookmarked the article to see if that helps me figure out how to make the settings stick.

callumprenticeon One Number I Trust: Plain-Text Accounting for a Multi-Currency Household

I agree with an earlier post that asserted "net worth = assets - liabilities" but I'd like to do better at understanding what that really means.

Some are easy like the size of your bank balance. Others are much harder.

For example, one asset we have is our home and there are many websites out there that tell you how much it's worth but they each vary an awful lot and change dramatically - so much so sometimes that any savings you've made in the same period are eclipsed.

Similarly, the 401k I've been building up for years seems like a decent amount but trying to calculate what it's worth after taxes and therefore how much you'll have to spend each month seems unknowable.

I think the same is true of investment accounts. If we seeded one with $500 and it's now worth $250, it's easy to think your net worth has risen by $250 but it really hasn't when taxes, fees and who knows what else is taken into account.

callumprenticeon Buteyko Method

What a lovely story and a great connection to a post. Thanks for sharing.

callumprenticeon Show HN: ISS in Real Time – 25 Years Aboard the International Space Station

Wow - that's incredible. I can't wait to take a look. Thanks for the pointer.

callumprenticeon Show HN: ISS in Real Time – 25 Years Aboard the International Space Station

https://callumprentice.github.io/apps/iss_photo_explorer/ind...

My daughter and I made this 10 years ago for the NASA Space Apps Challenge and I notified a whole bunch of folk at NASA but never heard anything back. Laughably amateurish compared to this magnificent work but it was fun to make.

We actually started work on the next version - a tool that lets you mark begin/end photo frames from those incredible fly-bys and save them off as video but it's maybe not worth it now.

callumprenticeon Apple's Cubify Anything: Scaling Indoor 3D Object Detection

I keep meaning to get back to my suite of equirectangular image functions - viewers, editors, authoring etc. and this reminded me to resurrect the Viewer.

https://equinaut.surge.sh/?eqr=https://raw.githubusercontent...

Not quite right I think because the source image issn't 2x1 aspect ratio.

They can look really nice: both in the real world - https://equinaut.surge.sh/?eqr=https://upload.wikimedia.org/...

the virtual world: https://equinaut.surge.sh/?eqr=https://live.staticflickr.com...