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Open Source @Github

Ultrathin business card runs a fluid simulation

https://github.com/Nicholas-L-Johnson/flip-card
384•wompapumpum•3h ago•87 comments

HorizonDB, a geocoding engine in Rust that replaces Elasticsearch

https://radar.com/blog/high-performance-geocoding-in-rust
71•j_kao•2h ago•16 comments

Getting Good Results from Claude Code

https://www.dzombak.com/blog/2025/08/getting-good-results-from-claude-code/
39•ingve•1h ago•29 comments

Astronomy Photographer of the Year 2025 shortlist

https://www.rmg.co.uk/whats-on/astronomy-photographer-year/galleries/2025-shortlist
10•speckx•56m ago•0 comments

The Rise of Ritual Features: Why Platforms Are Adding Daily Puzzle Games

https://productpickle.online/2025/07/20/ritual-features-the-quiet-strategy-behind-daily-puzzle-games-on-linkedin-and-beyond/
33•pkancharla•2h ago•27 comments

GPT-5

https://openai.com/gpt-5/
1930•rd•22h ago•2302 comments

Window Activation

https://blog.broulik.de/2025/08/on-window-activation/
99•LorenDB•4d ago•43 comments

Linear sent me down a local-first rabbit hole

https://bytemash.net/posts/i-went-down-the-linear-rabbit-hole/
309•jcusch•9h ago•130 comments

What Does Consulting Do?

https://www.nber.org/papers/w34072
17•surprisetalk•1h ago•9 comments

Food, housing, & health care costs are a source of major stress for many people

https://apnorc.org/projects/food-housing-and-health-care-costs-are-a-source-of-major-stress-for-many-people/
175•speckx•2h ago•232 comments

Telefon Hírmondó: Listen to news and music electronically, in 1893

https://en.wikipedia.org/wiki/Telefon_H%C3%ADrmond%C3%B3
24•csense•3d ago•3 comments

Show HN: Trayce – “Burp Suite for developers”

https://trayce.dev?resubmit=hn
30•ev_dev3•1d ago•6 comments

Show HN: Synchrotron, a real-time DSP engine in pure Python

https://synchrotron.thatother.dev/
15•andromedaM31•2h ago•0 comments

How Attention Sinks Keep Language Models Stable

https://hanlab.mit.edu/blog/streamingllm
69•pr337h4m•6h ago•15 comments

Flipper Zero dark web firmware bypasses rolling code security

https://www.rtl-sdr.com/flipperzero-darkweb-firmware-bypasses-rolling-code-security/
410•lq9AJ8yrfs•18h ago•240 comments

Historical Tech Tree

https://www.historicaltechtree.com/
457•louisfd94•20h ago•102 comments

Show HN: Aha Domain Search

https://www.ahadomainsearch.com/
6•slig•3d ago•5 comments

Exit Tax: Leave Germany before your business gets big

https://eidel.io/exit-tax-leave-germany-before-your-business-gets-big/
323•olieidel•21h ago•405 comments

Cursor CLI

https://cursor.com/cli
341•gonzalovargas•18h ago•233 comments

Complex Iterators Are Slow

https://caolan.uk/notes/2025-07-31_complex_iterators_are_slow.cm
20•todsacerdoti•4d ago•8 comments

FLUX.1-Krea and the Rise of Opinionated Models

https://www.dbreunig.com/2025/08/04/the-rise-of-opinionated-models.html
45•dbreunig•3d ago•17 comments

GPT-5: Key characteristics, pricing and system card

https://simonwillison.net/2025/Aug/7/gpt-5/
588•Philpax•21h ago•256 comments

OpenAI's new open-source model is basically Phi-5

https://www.seangoedecke.com/gpt-oss-is-phi-5/
356•emschwartz•20h ago•191 comments

What Is Popover=Hint?

https://una.im/popover-hint/
39•speckx•4d ago•10 comments

GPT-5 for Developers

https://openai.com/index/introducing-gpt-5-for-developers
439•6thbit•22h ago•250 comments

The BLS Can't Be Replaced by the Private Sector

https://www.bloomberg.com/opinion/articles/2025-08-08/the-bls-can-t-be-replaced-by-the-private-sector
80•petethomas•2h ago•74 comments

Virtual Linux Devices on ARM64

https://underjord.io/500-virtual-linux-devices-on-arm64.html
36•lawik•4d ago•3 comments

A love letter to my future employer (2020)

https://catzkorn.dev/blog/love-letter/
49•luu•9h ago•12 comments

Turn any website into an API

https://www.parse.bot
63•pcl•10h ago•19 comments

Encryption made for police and military radios may be easily cracked

https://www.wired.com/story/encryption-made-for-police-and-military-radios-may-be-easily-cracked-researchers-find/
214•mikece•20h ago•134 comments
Open in hackernews

How we enforce .NET coding standards to improve productivity

https://anthonysimmon.com/workleap-dotnet-coding-standards/
62•fratellobigio•3d ago

Comments

reverseblade2•3d ago
Title should be C# not .Net
algorithmsRcool•3d ago
I'm not sure i understand your comment, .editorconfig works just fine for VB files as well as F#
nickpeterson•3h ago
You could almost think of F# is an extremely strict set of conventions for C# … ;)
pc86•1h ago
You could, but you'd be wrong.
maltalex•2d ago
If you’re working in the .net ecosystem, you need to grok msbuild. Is not exactly painless or elegant, but is incredibly powerful. Creating a nuget package that applies settings and configuration files to consuming projects is the tip of a very deep iceberg.

I’m the author and owner of a similar code style/code quality package in a fairly large company and went through a very similar process, culminating with writing our own Roslyn-based analyzers to enforce various internal practices to supplant the customized configuration of the Microsoft provided analyzers. Also, we discovered that different projects need different level of analysis. We’re less strict with e.g test projects than core infrastructure. But all projects need to have the same formatting and style. That too can be easily done with one nuget using msbuild.

johnfonesca•3h ago
>But all projects need to have the same formatting and style.That too can be easily done with one nuget using msbuild.

That's like using a car for "traveling" 3 meters. Why not just use dotnet format + .editorconfig , they were created just for this purpose.

nathanaldensr•3h ago
It's a combination of practices, some at develop-time and some at CI-time. The general goal is to have code as clean and standardized as possible as early as possible, especially on larger teams where human enforcement doesn't scale as much.
chrisandchris•2h ago
> Why not just use dotnet format + .editorconfig

And let the IDE take care of that. Pre-commit Hook and it's all done.

maltalex•1h ago
It doesn’t scale as well across a large org.

We have hundreds of repos, thousands of projects. It is hard to ensure consistency at scale with a local .editorconfig in every repo.

Also, with a nuget I can do a lot more than what editorconfig allows. Our package includes custom analyzers, custom spell check dictionaries, and multiple analysis packages (i.e not just the Microsoft provided analyzers). We support different levels of analysis for different projects based on project type (with automatic type detection). Not to mention that coding practices evolve with time, tastes, and new language features. And those changes also need to be consistently applied.

With a package, all we need to do to apply all of the above consistently across the whole company is to bump a single version.

xnorswap•1h ago
They're talking about how to sync the .editorconfig if projects are not in a mono-repo.
tailspin2019•3h ago
I agree with you on MsBuild being powerful.

I often really hate certain technologies like MsBuild and use them begrudgingly for years, fighting with the tooling, right up until I decide once and for all to give it enough of my attention to properly learn, and then realise how powerful and useful it actually is!

I went through the same thing with webpack too.

MsBuild is far from perfect though. I often think about trying to find some sort of simple universal build system that I can use across all my projects regardless of the tech stack.

I’ve never really dug much into `make`… Maybe something like that is what I’m yearning for.

shortrounddev2•2h ago
I find this experience a lot with a lot of Microsoft technologies. People bemoan powershell, NT, DirectX, even C# itself, and other Windows APIs but when you get to really learn them you start to miss them on Linux. I sometimes see a meme from beginner programmers lamenting how the world would be better if Windows was POSIX compliant but once you've learned a bit about some of the Windows API calls, POSIX feels absolutely ancient. Some stuff is really dated like Win32 windowing stuff
NekkoDroid•2h ago
> I often really hate certain technologies like MsBuild and use them begrudgingly for years, fighting with the tooling, right up until I decide once and for all to give it enough of my attention to properly learn, and then realise how powerful and useful it actually is!

I had a similar expreience with Cmake. Note, I still hate the DSL but what it can do and what you nowadays actually need to do (or how you organize it) if you are writing a new project can be relatively clean and easy to follow.

Not to say its easy to get to that point, but I don't think anyone really would say that.

kreco•2h ago
While msbuild is powerful, I strongly believe it should have been a standard C# language build system instead of a XML-based one.

Any non-trivial thing to do is a pain to figure out if the documentation is not extensive enough.

I really love C#, but msbuild is one of the weak links to me, almost everything else is a joy to use.

swader999•2h ago
I remember using nant back in 2010 or so. Lol those were the days.
maltalex•1h ago
I completely agree that it shouldn’t be XML. Then again, I worked with Gradle in the past, which is based on Groovy syntax plus DSL. And that didn’t feel good either (though I must admit that I knew less about Gradle than I do about msbuild). Perhaps the problem of designing a good build system is harder than it seems.
Quarrelsome•2h ago
> If you’re working in the .net ecosystem, you need to grok msbuild.

Agreed, it makes a huge difference.

Sadly Visual Studio made that difficult from the start of .net, given its history with attempting to hide the .csproj files from developers and thus reduce their exposure to it. Its a real shame they decided to build visual studio like that and didn't change it for years.

appease7727•2m ago
Huh? You could always access the csproj by right clicking on the project.
graboid•4h ago
At work, we use the .editorconfig of the .NET runtime, with slight modifications:

https://github.com/dotnet/runtime/blob/main/.editorconfig

jimlawruk•3h ago
This appears to be the OP / Workleap's editor config. https://github.com/workleap/wl-dotnet-codingstandards/blob/m...
000ooo000•4h ago
Pretty long article with not a great deal of substance beyond what is mentioned early on. Would be interested to know how much input teams had in the rule configuration before this was foisted on them.
tailspin2019•3h ago
Plenty of substance in there for me. I’ve been building with dotnet since it existed and still learned a couple of new techniques/ideas from this article.
bragh•2h ago
There is quite useful content in there, but the writing style makes it very annoying to read, it feels as if the original text went through some kind of LLM filter and made it corporately soulless, as seems to be the good practice now.
pestkranker•3h ago
Is there a 'prettier' equivalent for code formatting? In my opinion, it's the only thing missing for a truly scalable codebase.
leosanchez•2h ago
dotnet format[0] with .editorconfig should do the job.

[0]: https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-f...

rasmuskl•2h ago
CSharpier is pretty good for a prettier like feel: https://csharpier.com/
tedggh•2h ago
This is a good article and I appreciate the author sharing his ideas. But that screenshot showing an example of poorly written code. Man if someone in your team is writing code like that you have much more serious problems. I understand the need for guardrails and standards, but when you go through the right process of hiring someone and giving an offer this should not happen. This is the equivalent of a law firm hiring a lawyer then adding a tool that checks their work when drafting documents making sure they don’t make mistakes. I’m not talking about complex compliance issues but fundamental knowledge a lawyer should have. The case can be made this is for junior developers, and I agree it can be useful, but there’s usually a path for junior developers that involves 1:1 mentorship before they start pushing critical code. We do have standards and guidelines in my team, but most of them are nice-to-haves. We assume we are all professionals and trust each other’s work even when many times we disagree on design and coding style. Our effort and enforcement is testing, accountability and good documentation. We nudge for readable code. We have a guy that loves Regex and we let him use it if well documented.
Quarrelsome•2h ago
isn't it[0] intentionally bad, so as to highlight the things .editorconfig might suggest to improve it?

[0] https://anthonysimmon.com/workleap-dotnet-coding-standards/w...

hk1337•2h ago
I remember seeing at one job, to share a “token” that was in a byte array, they iterated the byte array and concatenated the values. It was supposed to be an internal “auth tool”/“sso” but was unusable in the php app I was trying to use it with because it couldn’t (or at least I wasn’t sure how to) convert the byte array back. I ended up writing a small Java console app to convert it for me.
gwbas1c•1h ago
> But that screenshot showing an example of poorly written code.

That screenshot looks like it was specifically written for the blog entry. (The project is called ConsoleApp1.)

I suspect the author didn't want to show their employer's proprietary code on their blog, and probably wanted to make a concise screenshot with multiple errors.

(Otherwise, they might have people who don't have a programming background occasionally writing non-production tools as part of a non-software-engineering job. This is quite common in many workplaces.)

xnorswap•1h ago
I couldn't disagree more.

How do you expect junior programmers to become senior ones without help? Having automated guard-rails saves a large amount of your senior devs time by avoiding them having to pick such things up in code review, and you'll find the junior programmers absorb the rules in time and learn.

Several of the examples are nitpicking naming, this is exactly what should be automated. It's not like even experienced people won't accidentally use camelCase instead of PascalCase sometimes, or maybe accidentally snake_case something especially if they're having to mix C# back-end with JS frontend with different naming conventions.

Picking it up immediately in the IDE is a massive time-save for everyone.

The "There is an Async alternative" is a great roslyn rule. Depending on the API, some of those async overloads might not even have existed in the past, e.g. JSON serialisation, so having something to prompt "Hey, there's a better way to do this!" is actually magical.

Unused local variables are less likely, but they still happen, especially if a branch later has been removed. Having it become a compiler error helps force the dev to clean up as they go.

motorest•1h ago
> This is the equivalent of a law firm hiring a lawyer then adding a tool that checks their work when drafting documents making sure they don’t make mistakes

I don't agree. A better fitting comparison would be if a law firm enables spell checkers and proofreads documents to verify they use the law firm's letterhead. Do you waste your time complaining whether the space should go left or right of a bracket?

bob1029•2h ago
It's probably a bit overkill for most shops, but you can actually write your own code fixes if you've got some common pattern:

https://learn.microsoft.com/en-us/dotnet/csharp/roslyn-sdk/t...

These suggestions being immediately executable can dramatically improve compliance. I find myself taking things like range operator syntax even though I don't really prefer it simply because the tool does the conversion automatically for me.

giancarlostoro•1h ago
I used to recommend editorconfig and better tools for .NET nearly ten years ago. I never seem to get hired anywhere that appreciates better tooling and sane processes. All to the impediment of everyones productivity no less.

Just kind of giving up at this point. They are perfectly fine with waiting an extra day for every developer to finish simple tasks that better tooling could have helped with and I am not even talking about AI. Better database tools, better code refactoring that catches bugs before they happen. Lots of simple things.

xnorswap•1h ago
The trick isn't to convince, it's to just do.

How I approached it for an org with 300 projects and 10k+ failures after adding the analyzer.

1. Add .editorconfig and analyzer anyway

2. Ignore all the failing analyzer rules in .editorconfig

That's your baseline. Even if you have to ignore 80% of rules, that's still 20% of rules now being enforced going forward, which puts a stake in the ground.

Even if the .editorconfig doesn't enforce much yet, it allows incremental progress.

Crucially, your build still passes, it can get through code review, and it doesn't need to change a huge amount of existing code, so you won't cause massive merge issues or git-blame headaches.

3. Over time, take a rule from the ignored list, clean up the code base to meet that rule, then un-ignore.

How often you do such "weeding", and whether you can get any help with it, is up to you, but it's no longer a blocker, it's not on any critical path, it's just an easy way to pay down some technical debt.

Eventually you might be able to convince your team of the value. When they have fewer merge conflicts because there's fewer "random" whitespace changes. When they save time and get to address and fix a problem in private rather than getting to PR, etc.

Generally it's easier to ask forgiveness than permission. But you've got to also minimise the disruption when you introduce tooling. Make it easy for teammates to pick up the tooling, not a problem they now have to deal with.

gwbas1c•1h ago
I can vouche for .editorconfig. I set it up at my current job (although not to the degree in this article.)

The big problem we had was an old codebase, with a very inconsistent style, that had a lot of code written by junior developers and non-developers.

This resulted in a situation where, every time I had to work in an area of the code I hadn't seen before, the style was so different I had to refactor it just to understand it.

.editorconfig (with dotnet-format) fixed this.

jbjbjbjb•1h ago
Nuget Audit is an odd one. I usually don’t want all devs to jump on fixing the latest vulnerability right away. We have a separate pipeline for resolving those issues.
pc86•1h ago
I've actually changed my mind on this, if you're working in a project that's doesn't have a ton of early-lifecycle v0 packages. If there is a lot of quick churn in your dependencies, yeah you want to devote dedicated engineering resources to keeping these up-to-date and regression testing things.

If everything is pretty stable, it's nice to have each developer share the work with keeping things up-to-date and functional. Broad automated test coverage makes this a lot easier of course.

jasonthorsness•1h ago
Haven’t done much in C# since Claude Code has been available but I’ve found strict linting and style rules are very helpful for such agents when writing Go. I used to run a fairly strict and customized config with StyleCop etc; I wonder if something maybe more standardized like this will be more effective.