Viewing profile — a_c

Commented on yesterday's Ask HN: What are you working on? (August 2026), thought I might as well submit a Show HN. If you see climbing world cup/championship, there is this 3D mode…

Hey, looks like we both have a thing with 3D, love it! Mine is about bouldering, check it out https://news.ycombinator.com/item?id=49234599

Thank you!

Climbing gym photogrammetry. My idea is that route and climb recordings is best recorded against a 3D climbing gym model, rather than a plan video, and technology has gotten good e…

When using chatbots, I often lose track of which question the response I’m reading is answering. It is even more confusing when scroll up and down looking for a previous answer to …

Tangential, for static site like this, why do people choose to host on vercel instead of github page?

Writing code with real use is very different from writing code for the sake of writing (looks cool, sounds cool). Writing code with one user is the base case of a “why am I writing…

Accurate reconstruction is entirely up to the camera's ability to orbit around the object. If we are talking about cracks, the visual signal will be very poor as we can't wiggle a …

I scanned my local climbing gym and have climbing videos mapped onto the wall https://kmcheung12.github.io/climb-preview/w/a6ece004 I think 3D application is massively under utilis…

They are going to reset the weekly limit before your weekly limit. Mine resets tomorrow too.

My experience from running a django app with thousands of migrations and dozen of apps - Testing involving models is slow. It runs all your migration. Python's own "Unittest" is fa…

Is there any write up regarding the SimdJson Algo? Definitely love to read more of it!

In the midst of building a climbing app, I want to use climbing videos of other climbers but I didn't want to show their face without their consent so I tried to look for quick sol…

People learn and relearn the core concepts from different paths. A recent trend due to coding agent is that people are learning software engineering is not about syntax and framewo…

I didn't update it for a while. It reads your local conversation history, correlate input/output token with usage (claude doesn't give exact breakdown), and classify if they are su…

My own set of heuristics 1. Use less subagents. The act of using subagent already needs dumping adequate amount of context for subagent to work effectively 2. Refactor when file gr…

A natural extension would be a reverse steganography that trips AI into see other things in images

I’m also asking for my sons

Slightly off topic, anyone know of any good dinosaur illustration, ideally a large collection?