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I Squeezed 31.9 TFLOPS out of an RTX 4060, Beating cuBLAS by 14%

https://github.com/houslast3/How-I-Squeezed-31.9-TFLOPS-out-of-an-RTX-4060-Beating-cuBLAS-by-14-
1•houslast•58s ago•0 comments

20problems.com – Daily Math Quiz

https://www.20problems.com/
1•BrodieH•3m ago•0 comments

Silvia – AI CFO built for serious investors

https://www.cfosilvia.com/
1•root-parent•3m ago•0 comments

Show HN: GraphCompose 2.0 – Java DSL for business PDFs, now split into modules

https://github.com/DemchaAV/GraphCompose
1•demchaav•3m ago•0 comments

Detection of a four-carbon sugar in interstellar space

https://www.nature.com/articles/s41550-026-02905-7
2•pontsprit•4m ago•0 comments

A/B Test results: Trying different homepage heroes got us 2.6x sign-ups

1•Salim99•4m ago•0 comments

Show HN: Overplane: Containers and formal verification for AI code

https://www.overplane.dev/
1•mayank•5m ago•1 comments

Show HN: S4Ready – Deduplicate and fix SAP data before an S/4HANA migration

https://s4ready.fenikstech.ai/
1•ceyhunkazel•6m ago•0 comments

Engineering High-Performance Parsers with Data-Oriented Design

https://www.arshad.fyi/writings/engineering-high-performance-parsers
1•klaussilveira•6m ago•0 comments

Trump invested crypto gains in stocks and bonds, filings show

https://www.reuters.com/legal/government/trump-invested-crypto-gains-stocks-bonds-filings-show-20...
2•tartoran•7m ago•0 comments

Show HN: Display Excel files in your web app

https://spreadsheetpreview.com
1•robbiejs•8m ago•0 comments

GPT 5.6 sets new record on proofreading benchmark

https://twitter.com/tmuxvim/status/2076692926059499646
1•artursapek•8m ago•0 comments

Elon Musk and Sam Altman spar on X after Apple files OpenAI lawsuit

https://www.cnbc.com/2026/07/12/elon-musk-and-sam-altman-spar-.html
1•root-parent•9m ago•0 comments

The Vulkan Kitchen: A Visual Tour of the Graphics Pipeline

https://fremaconsulting.ch/blog/vulkan
1•tohms•9m ago•0 comments

Show HN: Biscotti – on-device meeting transcription for macOS

1•scosman•10m ago•0 comments

Split – A Chrome extension that glitches the browser if you have too many tabs

1•GonzAVic•11m ago•0 comments

SpaceX cleared to fly Starship again after booster failure in May

https://techcrunch.com/2026/07/13/spacex-cleared-to-fly-starship-again-after-booster-failure-in-may/
1•Brajeshwar•12m ago•0 comments

Nestlé to Tweak Some Food Recipes to Appeal to Duller GLP-1 Palates

https://www.wsj.com/health/pharma/nestle-to-tweak-some-food-recipes-to-appeal-to-duller-glp-1-pal...
2•sefrost•14m ago•3 comments

Optimizing MiniMax M3 Sparse Attention on Nvidia Blackwell

https://fireworks.ai/blog/kernel-optimization-for-minimax-m3-on-nvidia-blackwell
1•smurda•14m ago•0 comments

Apple's rumored M7 Ultra targets 1.5TB and Blackwell-class AI performance

https://www.tomshardware.com/tech-industry/semiconductors/apples-rumored-m7-ultra-targets-1-5tb-o...
3•rbanffy•16m ago•2 comments

Flow – a compact data pipeline language that cuts LLM token usage by 33%

https://github.com/pinku/Flow
1•dpia•16m ago•0 comments

Unified CLI for running AI coding agents in isolated Docker or Podman containers

https://github.com/VibePod/vibepod-cli
1•nezhar•17m ago•0 comments

ID-JAG helps AI agents authenticate

https://nango.dev/blog/id-jag-agent-authentication/
1•rguldener•17m ago•0 comments

Test How hard to love you?

https://www.hardtolovetest.com/
2•jeyzolo•17m ago•1 comments

OB-GYN pay overhaul spells changes for maternal care

https://www.axios.com/2026/07/13/ob-gyn-pay-overhaul-changes-maternal-care
1•brandonb•18m ago•0 comments

The Efficiency Gains from Mergers

https://nicholasdecker.substack.com/p/the-efficiency-gains-from-mergers
1•surprisetalk•18m ago•0 comments

The Prompt Stops Mattering When You Leave the Room

https://x.com/i/article/2076675078620909569
1•deepakguptacse•19m ago•0 comments

Rewriting the Accreditation Playbook

https://pen.org/rewriting-the-accreditation-playbook/
1•hn_acker•19m ago•0 comments

AI-authored motion graphics with a compiler in the loop

https://samsonaligba.com/video-compiler-for-agents-and-humans
1•sa_gdi•19m ago•0 comments

I Built an AI System That Codes, Runs and Improves Itself

https://fatihkoc.net/posts/ai-system-that-improves-itself/
1•fatihkocnet•21m ago•0 comments
Open in hackernews

Show HN: Hackney – Compare Uber, Lyft, Waymo, and Robotaxi Prices

https://hackney.app/
2•griffinli•1h ago
I created an app that compares real-time prices and wait times across Uber, Lyft, Waymo, Tesla Robotaxi, Curb, and Empower. It shows you all ride options in one list, then once you’re ready to book, it deeplinks you to the provider’s app with the route pre-filled.

I reverse-engineered ride-hailing mobile apps to understand how they fetch prices from their servers. You sign in to my app with your ride-hailing accounts, and then my app requests live prices from the same APIs that ride-hailing apps use. Importantly, my app is built using an on-device approach: the app on your phone stores authentication tokens locally and sends network requests directly to each ride-hailing company’s servers. This keeps your accounts private. I wrote a blog post showing network requests sent by my app, which you can verify yourself: https://blog.hackney.app/p/how-hackney-works

This seems like an obvious app. Why doesn’t it already exist? That’s because most ride-hailing companies don’t offer public APIs for prices and wait times. Uber does offer one, but they prohibit using it for price comparison. When someone built a comparison app using the official API, Uber terminated their API access (https://www.benedelman.org/news-053116). There are apps today that don’t use official APIs, but they run your account tokens through their servers and send price requests server-side.

To integrate a ride-hailing provider, my app sends network requests for sign-in, token refresh, ride prices, and ride history (to power a feature that shows you unified ride history across apps and how much you’ve saved on each ride). Some ride-hailing apps implement certificate pinning to prevent you from viewing their network requests, and some communicate with their server using Protobuf, a data format that doesn’t include the original field names. Building an app using this approach is technically complex, but it makes possible all sorts of useful products that couldn’t otherwise exist.

The app is completely free. In the future, I may monetize through a subscription or partnerships with ride-hailing companies. I’d love to hear your feedback. You can download it today.

iOS: https://apps.apple.com/us/app/hackney-compare-rideshares/id6...

Android: https://play.google.com/store/apps/details?id=app.hackney

Comments

oleg_kabanov•3m ago
Great project. Is there a web version?
griffinli•53s ago
No, just mobile.