HNHacker News
TopNewBestAskShowJobs

robertclaus

527 karma · joined March 14, 2024

Mostly into software development.
submissionscomments
robertclaus··on Representing Graphs in PostgreSQL
I've found the main advantage to this over a more specialized graph database is integration and maintenance alongside the rest of your application. Real world data is rarely just (or even mostly) graph data.
robertclaus··on I set my phone to 'do not disturb' three years ago – and have never looked back
I've pretty much always kept my phone on silent. I don't mind notifications while I'm on my phone anyways, but if I do manage not to check on it for a while I see that as a good thing.
robertclaus··on Children's arithmetic skills do not transfer between applied and academic math
On the surface it's pretty obvious that classroom learning doesn't immediately translate to real world experience, but the paper's finding seems to be more about the extreme degree of discrepancy between the two cohorts. It almost feels like a comment on social class distinctions - there are children who get classroom educations that don't have to use it, while others have to use the skills but don't get the related education.
robertclaus··on Show HN: An API that takes a URL and returns a file with browser screenshots
We developed a service like this internally at a previous company. It was nice to have a generic "preview" generating service.
robertclaus··on First place in Tetris 99 using computer vision, classical AI, a lot of free time
A bit into the article I reframed "AI" to mean "bot".
robertclaus··on How many ants live on Earth? (2022)
The absolute numbers are awe inspiring, but the paper actually only adjusted the previous best estimate by about an order of magnitude. It's cool to see incremental scientific improvements getting some spotlight!
robertclaus··on Dragonsweeper — A minesweeper game that requires observation
I have gotten good enough to solve the map every time, but still can't seem to get enough XP to reach level 15...
robertclaus··on Searching for DeepSeek's glitch tokens
This was really interesting to me as someone who knows a bit about LLMs, but not a ton.
robertclaus··on Steam Brick: No screen, no controller, just a power button and a USB port
I've always been curious to buy a headset display when traveling, but was never sure what I would actually use it for. This is pretty cool and might inspire some use case's I hadn't considered.
robertclaus··on DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via RL
Doesn't this just mean throwing a gazillion GPUs at the new architecture and defining a new SOTA?
robertclaus··on The Tyranny of Structurelessness (1970)
I've run into a similar problem many times at small companies. Effectively rejecting the idea of structure because of slippery-slope arguments. I've had pretty senior folks make comments like "If we require PR reviews on every little change, we'll be just like <pick an unpopular large tech company> and take forever to do anything."
robertclaus··on Startup Winter: Hacker News Lost Its Faith
My impression is that the disillusionment with startups has led to m a gradual shift towards small self sufficient software businesses. Some folks that would have previously started a VC backed startup for casual software ideas now just keep the scale down and supplement their income on the side.
robertclaus··on Please don't force dark mode
Do desktop apps or anything else really respect this?
robertclaus··on Forgejo: A self-hosted lightweight software forge
I've used Github's built in VSCode for quick one-line PRs or docs cleanup. I'm lazy enough to appreciate the feature even if I would never do deeper work in it.
robertclaus··on So You Want to Build Your Own Data Center
I would be super interested to know how this stuff scales physically - how much hardware ended up in that cage (maybe in Cloud-equivalent terms), and how much does it cost to run now that it's set up?
robertclaus··on Build a Database in Four Months with Rust and 647 Open-Source Dependencies
I'm having a real crisis trying to decide whether this system should be called a database or not. It's a system for managing data, so obviously it is.. but by that loose interpretation any CRUD webserver would count too.
robertclaus··on Making Beautiful API Keys
This type of key editing always makes me nervous. I know how uuids behave. I'm not a security expert, but I'm 99% sure the formatting steps here don't increase the chance of key collisions or security implications significantly. Is that 1% risk worth it?
robertclaus··on The engineering behind the San Antonio River Walk
I thought the way he referenced the hydraulic pumps compared to electric motors with gear shafts was interesting.
robertclaus··on A marriage of solar energy and farming
I would assume spacing becomes quite sensitive for this to work well, but cool idea!
robertclaus··on Preferring throwaway code over design docs
In my experience there is a MASSIVE difference in the type of feedback someone gives on code vs a design. A design doc encourages "why" questions to get everyone thinking about the problem space. For example, a design doc comment might be "why are we suggesting a Rust Webserver when nobody in the company is proficient in Rust yet?".

In my experience those more subtle questions are much harder to raise once a prototype is working - "why does the team's experience matter? look how great it works! If you don't block it we could get this to production in a week by just polishing the prototype!"

robertclaus··on Map of GitHub
I've been thinking something similar for identifying ownership areas within an organization would be cool.
robertclaus··on Lies I was told about collab editing, Part 1: Algorithms for offline editing
Isn't eventual consistency theoretically trivial...? You just delete the whole document after every transaction. I think it's safe to assume anyone talking about this _means_ the results remain meaningful - which for text/meaning is subjective.
robertclaus··on Lies I was told about collab editing, Part 1: Algorithms for offline editing
The most surprising part of this article for someone uninitiated like myself is probably that products/algorithms are claiming this automatic reconciliation is consistently possible. Maybe I've spent too much time resolving code merge conflicts by hand, but this seems intuitively obvious to me...

Feels like https://xkcd.com/1831

robertclaus··on Lessons I learned working at an art gallery
I got a similar sense, especially the section where they talked about needing to build trust before trying to change things. I do volunteer photography, and feel the same way as this article any time I do a shoot for a small organization that has never gotten good photos for their business before. It's super rewarding, but a completely different thing than my dayjob managing a solid team of engineers.
robertclaus··on If not React, then what?
Once you get to the examples of different types of webpages, the author basically admits React (and SPAs in general) is likely appropriate for a bunch of application types. At that point the argument seems to boil down to "use a CMS and a simple frontend if user sessions are simple enough".
robertclaus··on Show HN: MyDuck Server – Supercharge MySQL and Postgres Analytics with DuckDB
The current system diagram implies using duckdb's default storage format directly. I wonder how well this would actually work with the proposed zero-ETL design of basically treating this as a live replica. I was under the impression that as an OLAP solution DuckDB makes performance compromises when it comes to writes - so wouldn't live replication become problematic?
robertclaus··on Show HN: Embed an SQLite database in your PostgreSQL table
What are the use cases for this? I can't imagine designing a database schemas to use this in a typical product. Is it intended for hybrid applications to back up local user data directly with their account info?
robertclaus··on Photo Editor for Cats
Depends on the size of the effect? Most buttons still have :active styling even in a mobile first world.
robertclaus··on I quit Google to work for myself (2018)
I know this article is about Google's culture and the author is a strong developer, but it reminds me of conversations with junior developers at other companies. I've worked with a lot of junior folks that think they should be a "senior" 2 years out of their undergrad CS courses. After all, fixing some tests independently fullfills the "leads complex projects" box on the leveling chart.
robertclaus··on INNER JOIN ON vs WHERE clause (2009)
For how much the standards were referenced, nobody seemed to actually explain the history of the two syntaxes or the reasoning that led to the introduction of a dedicated join statement. If anyone has an article that summarizes the actual history (or even the RFC for introducing the JOIN syntax), I would love to read it.
← PreviousPage 4 of 8Next →