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xrendan

146 karma · joined September 13, 2019

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xrendan··on Ask HN: What are you working on? (September 2025)
I would absolutely love if you brought Canadian maps to this.

I work for Build Canada and I would love to see some maps from the fur trade and early exploration to tell stories.

If you want to chat my email is brendan at buildcanada.com

xrendan··on Is Gemini 2.5 good at bounding boxes?
One thing that has surprised me (and I should've known that it wasn't great at it), but it is terrible at creating bounding boxes around things it's not trained on (like bounding parts on a PCB schematic.)
xrendan··on Nvidia Becomes First Company to Reach $4T Market Cap
Amazon - Ecommerce (1994), AWS (2006)

Microsoft - Programming Language (1975), Operating Systems (1981), Office Suite (1983)

Meta - Facebook (2004), Instagram (2010)

I would argue microsoft is unique because of how badly IBM screwed up.

xrendan··on Show HN: S3mini – Tiny and fast S3-compatible client, no-deps, edge-ready
I read that as the size of file it's transferring so each operation would be bigger and therefore slower
xrendan··on ClawPDF – Open-Source Virtual/Network PDF Printer with OCR and Image Support
Ugh, I don't have it. It was from before I used git.

Basically to do this you have a cups server that exposes itself as a network printer that prints to a specified PDF directory and then you have a program watching that directory for new files and if there's a new one it opens up whatever pdf viewer you want in full screen.

Setup a shared pdf printer: https://askubuntu.com/questions/1310867/how-to-set-up-shared...

xrendan··on ClawPDF – Open-Source Virtual/Network PDF Printer with OCR and Image Support
I have some really old code that pretty much does this, I'll see if I can find it.
xrendan··on Launch HN: Bild AI (YC W25) – Understand Construction Blueprints Using AI
I love the Blueprint Understanding.

One thing I've been thinking about is if you could use a model like this as the first pass for permitters (Like a GitHub Actions CI/CD) who review blueprints.

Many developers use the regulatory side of various engineering approval processes as a quality control check which costs money and time for the regulator who is tasked with enforcing a standard.

It would also be good to speed up the workflow for developers saying hey, this thing looks weird did you really mean to do this?

And then further on, you could add a way to check it for constructability. My framer friends often get annoyed at whatever engineer because the way the structure is designed is materially inefficient or hard to construct.

xrendan··on OpenAI O3 breakthrough high score on ARC-AGI-PUB
You're misreading it, there's two different runs, a low and a high compute run.

The number for the high-compute one is ~172x the first one according to the article so ~=$2900

xrendan··on Show HN: Countless.dev – A website to compare every AI model: LLMs, TTSs, STTs
Azure charges differently based on deployment zone/latency guarantees, OpenAI doesn't let you pick your zone so it's equivalent to the Global Standard deployment (which is the same cost).

[0] https://azure.microsoft.com/en-us/pricing/details/cognitive-...

xrendan··on Multi AI agent systems using OpenAI's assistants API
I'd be interested in knowing if anyone is seriously using the assistants API, it feels like such a lock in to OpenAIs platform when your can alternatively just use completions that are much more easily interchanged.
xrendan··on Building reliable systems out of unreliable agents
This generally resonates with what we've found. Some colour based on our experiences.

It's worth spending a lot of time thinking about what a successful LLM call actually looks like for your particular use case. That doesn't have to be a strict validation set `% prompts answered correctly` is good for some of the simpler prompts, but especially as they grow and handle more complex use cases that breaks down. In an ideal world

> chain-of-thought has a speed/cost vs. accuracy trade-off a big one.

Observability is super important and we've come to the same conclusion of building that internally.

> Fine-tune your model

Do this for cost and speed reasons rather than to improve accuracy. There are decent providers (like Openpipe, relatively happy customer, not associated) who will handle the hard work for you.

xrendan··on LazyVim
I use this all the time and you can copy a range of values with multiple cursors and then paste them into the same size range. It's nice for hashes or modifying static lists that all need the same changes, but are annoying to regex for
xrendan··on Ask HN: Which substacks do you read as soon as it hits your inbox?
The Diff [0] and Capital Gains [1][2] by Byrne Hobert are excellent.

If you're interested in in-depth analysis of current events in finance, tech and other related musings.

Capital Gains is more focused on ideas in finance and how to think about them.

[0] https://www.thediff.co/ [1] (With referral code) https://capitalgains.thediff.co/subscribe?ref=zlPGzwicD7 [2] (Without referral code) https://capitalgains.thediff.co/subscribe

xrendan··on Launch HN: Second (YC W23) – AI bots that add features to web apps
I'm generally interested, but it would be helpful to understand what the different plans are actually offering? I have no idea what the difference is between:

- Starter Developer Bot - Pro Developer Bot - Enterprise Developer Bot

Also, the music on your demo video is a bit excessive, I don't really expect hype music when I'm looking at a demo. It would be more helpful to have someone talking explaining what's going on (or silence)

xrendan··on Trustfall: How to Query (Almost) Everything
Is it possible to join those data sources against an existing database like MySQL or SQLServer?
xrendan··on I rewrote in Crystal my tool to quickly create Kubernetes clusters in Hetzner
I have a cluster using terraform-hcloud-kube-hetzner [0] and I'm quite happy with it.

It uses MicroOS for rolling releases and auto-upgrades for less maintenance. I'm quite happy with it so far, and I like that it integrates with terraform.

[0] https://github.com/kube-hetzner/terraform-hcloud-kube-hetzne...

xrendan··on Saskatchewan, Ontario to roll out mini-nuclear reactors
A big reason that Ontario can't / doesn't is that the demand centers in Southern Ontario are ridiculously far from the generation centers in Manitoba. Toronto is 1800 km straight from the new Keeyask Dam. This is over unpopulated muskeg that is expensive to build on in the first place and difficult to access for maintenance.
xrendan··on Show HN: We used investor tools to find the best startups to work at
It just crashes after finishing onaboarding trying to load with:

TypeError: can't access property "push", Mo['ex-Unicorn Founder'] is undefined

xrendan··on Show HN: EdgeDB 1.0
What's the sort of timeline on GIS extensions? Great work btw, I've been following since the alphas and I'm excited to try it out :)
xrendan··on The State of Web Scraping 2022
I think it really depends on the application of web scraping. (As someone who does, what is in my mind, ethical web scraping)

- Scraping public information from government websites to do analysis: ethical, it's the public's data

- Scraping to help some companies customers more effectively use that companies product, for example scraping a medical office's insurance claims to help them automate their insurance remittance process: ethical

- Scraping faces to build a surveillance-tech company: disgusting

- Scraping your own website because your internal processes are so broken you can't get it any other way: ethical

- Scraping to just copy someone's data they worked hard to generate to go and resell: unethical

xrendan··on Cloudflare R2 storage: Rapid and reliable object storage, minus the egress fees
Depending on your use-case (if it's read heavy), you could use SQLite hosted on R2 being read by workers
xrendan··on A new way to detect ‘deepfake’ picture editing
Yes, but you need to detect the fakes before you can ban them. An adversary could just rotate camera keys before they're even detected.
xrendan··on Launch HN: Slip (YC S21) – Build and sell interactive programming courses
The see an example button on the home page just refreshes the page on both Firefox and Chrome for me on Linux
xrendan··on Driving 1725km in an electric car in 2 days
It's not true that all government power belongs to the federal government and that provinces only gain power by devolution from the federal government. The Canadian constitution describes areas of responsibility for both the federal and provincial governments with some shared areas of responsibility.
xrendan··on Apple iPhone charger teardown: quality in a tiny expensive package (2012)
Do you know what the big difference for companies to cram enough hardware into the same space to support 20W power like Anker [1] Is this just incremental improvements or is there a technological breakthrough that's enabled this?

[1] https://us.anker.com/pages/uai2020

xrendan··on Student IDs on iPhone and Apple Watch Expand to Canada and More US Universities
In my province (Alberta) I'm allowed to carry digital proof of insurance for my car instead of the standard pink sheet. The app has a mode that displays the insurance info on the lockscreen while locking the rest of the phone to the police (or whoever else needs to see it). So there are technical solutions to the first issue.

The second issue, I completely agree, I would rather the system be an addition to existing IDs rather than a replacement to them.

xrendan··on Wildfires in Canada are creating their own weather systems, experts say
There's also https://firesmoke.ca
xrendan··on Launch HN: Axiom (YC W21) – No-code browser automation a.k.a. RPA for everyone
I set up a meeting for tomorrow through your website (look for a meeting with Brendan), we've got a large use case for this and it could really help us out.
xrendan··on Launch HN: Axiom (YC W21) – No-code browser automation a.k.a. RPA for everyone
Follow-up question, can I screenshot webpages that it visits?
xrendan··on Launch HN: Axiom (YC W21) – No-code browser automation a.k.a. RPA for everyone
Is there any capability to run bots headless on our own infrastructure as opposed to locally?
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