frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

A game about building a city, built by a team that is building a real city

https://game1.forestcity.uk
1•ISNIT•38s ago•1 comments

Visidea

https://visidea.ai/
1•arolando•41s ago•0 comments

Show HN: We replayed 12 real AI agent incidents against our open-source tool

https://squidbrake.com/benchmark
1•batrapulkit1103•2m ago•0 comments

Go 1.27.3 and Go 1.26.10 are released

https://groups.google.com/g/golang-announce/c/66pojueaQek
1•axis_official•3m ago•0 comments

Unikernels in OCaml

https://uniker.nl/
1•joshcsimmons•5m ago•0 comments

We need your spiritual gifts

https://sashachapin.substack.com/p/we-need-your-spiritual-gifts
1•eatitraw•7m ago•0 comments

Whatever Happened to Fire Escapes

https://practical.engineering/blog/2026/10/20/whatever-happened-to-fire-escapes
3•sohkamyung•11m ago•0 comments

Unitree Introducing: H2-X Kung Fu Legend Guardian

https://twitter.com/UnitreeRobotics/status/2112819774573179175
1•santiago-pl•11m ago•0 comments

Why is Elon Musk plotting a mega-merger of SpaceX and Tesla?

https://www.bbc.com/news/articles/cr93z1e87e0do
1•SenHeng•11m ago•0 comments

Nvidia Vera's System Architecture: Pushing Bandwidth

https://chipsandcheese.com/p/nvidia-veras-system-architecture
1•rbanffy•11m ago•0 comments

Average moments of a long-term meditator

https://sashachapin.substack.com/p/average-moments-of-a-long-term-meditator
1•eatitraw•14m ago•0 comments

The Media 'Manufactured' Millionaire Exodus from UK, Campaigners Tell IPSO

https://bylinetimes.com/2026/10/20/the-media-manufactured-millionaire-exodus-from-uk-campaigners-...
2•robtherobber•18m ago•0 comments

eMudhra Statement on Recent Certificate Security Incident

https://emudhra.com/en/post/certificate-security-incident
2•chanux•21m ago•1 comments

Extension for Better VS Code Terminal Shortcuts

https://github.com/kolibril13/terminal-color-cycle
1•kolibril13•25m ago•2 comments

Amazon's TorchNeuron Runs PyTorch on AWS Trainium Chips

https://www.aboutamazon.com/news/innovation-at-amazon/torchneuron-pytorch-aws-trainium-chips-ai
1•jonbaer•25m ago•0 comments

Neuroevolution Can Play Super Mario Better Than Any Human

https://orange-bread-2832.vahmoh25.workers.dev/
2•amirpros•25m ago•1 comments

Show HN: EPUfix – Invoicing software for the self-employed in Austria

https://epufix.at
1•nicojuhari•26m ago•1 comments

PHP2Shell: Critical Vulnerabilities in PHP

https://www.aikido.dev/blog/critical-vulnerabilities-in-php-php2shell
2•sunbum•26m ago•0 comments

Hackers and photographers: Opus 5.5 had become smart enough to quit writing code

https://www.devas.life/hackers-and-photographers/
3•zazuke•27m ago•0 comments

Animate Anything with Stick Figures

https://stykanimate.com/
2•wiradikusuma•33m ago•1 comments

Db4 is open source: local RAG on Postgres in a browser tab

https://lab4.app/blog/db4-is-now-open-source/
2•lab4app•33m ago•0 comments

Show HN: Linkit – AI bookmark manager, 100% free and open source

https://github.com/blue-idea/linkit
2•manbudezhu•34m ago•0 comments

Indian certification authority eMudhra's private keys leaked–one of them was '4'

https://www.theregister.com/security/2026/10/20/indian-certification-authority-emudhras-private-k...
2•user_7832•34m ago•0 comments

Show HN: Non-call, an on-call simulator mini-game

https://serum.sh/non-call/
2•cyberfart•37m ago•0 comments

Mars College: An Uncollege in the Desert

https://mars.college/
2•so-cal-schemer•40m ago•2 comments

I made a disk usage tool in Swift, and on macOS it beats the Rust ones

https://old.reddit.com/r/swift/comments/1xanm2q/i_made_a_disk_usage_tool_in_swift_and_on_macos_it/
3•frizlab•47m ago•0 comments

'No real sense of appeal': Vinted sellers complain of unfair account 'bans'

https://www.theguardian.com/money/2026/oct/20/vinted-sellers-banned-sales
2•Markoff•47m ago•0 comments

GetDiogenes – I analyzed 200 tech job listings with Claude to spot ghost jobs

https://getdiogenes.com
2•sharif-ali•49m ago•0 comments

Commandments of Undertaking Postgraduate Research

https://bitsilla.com/blog/2020/07/the-10-commandments-of-doing-a-postgraduate-degree/
2•malteseunderdog•59m ago•1 comments

The Robot I Didn't Expect to Build

https://spectrum.ieee.org/agility-robotics-digit-5-redesign
1•sohkamyung•1h ago•0 comments
Open in hackernews

Ask HN: Why is big O often used in CS when omega or theta should be used?

2•amichail•1y ago
Do most people not know about omega and theta or perhaps they intentionally misuse asymptotic notation?

Comments

adrianN•1y ago
Finding lower bounds is generally more difficult.
amichail•1y ago
People often use big O notation in all cases including for lower bounds.
adrianN•1y ago
BigO for lower bounds is plain wrong
numpad0•1y ago
Those aren't in the ASCII table.
compressedgas•1y ago
I've found some people on a well known QA site to be so strict with big-O notation that I don't use it anymore and instead only refer to constant, linear, quadratic time and so on. Even when O(1), O(n), O(n^2) would be actually easier to write even if they are technically wrong.