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Show HN: Mdarena – Benchmark your Claude.md against your own PRs

https://github.com/HudsonGri/mdarena
10•hudsongr•3h ago

Comments

hudsongr•3h ago
Hey! I built this because everyone's writing CLAUDE.md files now but nobody knows if theirs actually works. The research is contradictory too, one paper says they hurt performance, another says they help. So I made a tool that just measures it on your own repo using your own PRs and your own test suite.

Turns out it's not often you can point to a single markdown file and say "this made the agent 27% better at resolving real tasks." That's what we saw on our production monorepo. I imagine this as a way for teams to actually make their agents write better code instead of guessing.

Show HN: I built a tiny LLM to demystify how language models work

https://github.com/arman-bd/guppylm
83•armanified•2h ago•6 comments

Show HN: YouTube search barely works, I made a search form with advanced filters

https://playlists.at/youtube/search/
85•nevernothing•2h ago•58 comments

Gemma 4 on iPhone

https://apps.apple.com/nl/app/google-ai-edge-gallery/id6749645337
448•janandonly•8h ago•124 comments

LÖVE: 2D Game Framework for Lua

https://github.com/love2d/love
218•cl3misch•1d ago•91 comments

Microsoft hasn't had a coherent GUI strategy since Petzold

https://www.jsnover.com/blog/2026/03/13/microsoft-hasnt-had-a-coherent-gui-strategy-since-petzold/
241•naves•9h ago•133 comments

Artemis II crew see first glimpse of far side of Moon [video]

https://www.bbc.com/news/videos/ce3d5gkd2geo
430•mooreds•12h ago•326 comments

Endian wars and anti-portability: this again?

https://dalmatian.life/2026/04/03/endian-wars-and-anti-portability-this-again/
19•awilfox•1d ago•17 comments

Eight years of wanting, three months of building with AI

https://lalitm.com/post/building-syntaqlite-ai/
657•brilee•14h ago•207 comments

Copilot is 'for entertainment purposes only', per Microsoft's terms of use

https://techcrunch.com/2026/04/05/copilot-is-for-entertainment-purposes-only-according-to-microso...
26•airstrike•2h ago•7 comments

Sheets Spreadsheets in Your Terminal

https://github.com/maaslalani/sheets
10•_____k•1d ago•2 comments

In Japan, the robot isn't coming for your job; it's filling the one nobody wants

https://techcrunch.com/2026/04/05/japan-is-proving-experimental-physical-ai-is-ready-for-the-real...
131•rbanffy•4h ago•139 comments

Running Gemma 4 locally with LM Studio's new headless CLI and Claude Code

https://ai.georgeliu.com/p/running-google-gemma-4-locally-with
206•vbtechguy•9h ago•54 comments

Employers use your personal data to figure out the lowest salary you'll accept

https://www.marketwatch.com/story/employers-are-using-your-personal-data-to-figure-out-the-lowest...
96•thisislife2•2h ago•30 comments

Why Switzerland has 25 Gbit internet and America doesn't

https://sschueller.github.io/posts/the-free-market-lie/
273•sschueller•8h ago•212 comments

Show HN: Gemma Gem – AI model embedded in a browser – no API keys, no cloud

https://github.com/kessler/gemma-gem
14•ikessler•2h ago•1 comments

Show HN: Modo – I built an open-source alternative to Kiro, Cursor, and Windsurf

https://github.com/mohshomis/modo
15•mohshomis•3h ago•2 comments

Recall – local multimodal semantic search for your files

https://github.com/aayu22809/Recall
11•patel_aayushya•2h ago•7 comments

Music for Programming

https://musicforprogramming.net
118•merusame•8h ago•49 comments

OpenAI's fall from grace as investors race to Anthropic

https://www.latimes.com/business/story/2026-04-01/openais-shocking-fall-from-grace-as-investors-r...
94•1vuio0pswjnm7•3h ago•54 comments

Apex Protocol – An open MCP-based standard for AI agent trading

https://apexstandard.org/
8•andmerm•2h ago•2 comments

The Mechanics of Steins Gate (2023) [pdf]

https://github.com/Votuko/steins-gate-mechanics/blob/main/The%20Mechanics%20of%20Steins%20Gate%20...
51•Ariarule•5h ago•9 comments

A tail-call interpreter in (nightly) Rust

https://www.mattkeeter.com/blog/2026-04-05-tailcall/
133•g0xA52A2A•11h ago•22 comments

Computational Physics (2nd Edition) (2025)

https://websites.umich.edu/~mejn/cp2/
106•teleforce•11h ago•17 comments

Wavelets on Graphs via Spectral Graph Theory (2009)

https://arxiv.org/abs/0912.3848
28•dedalus•5d ago•2 comments

Nanocode: The best Claude Code that $200 can buy in pure JAX on TPUs

https://github.com/salmanmohammadi/nanocode/discussions/1
166•desideratum•12h ago•24 comments

Caveman: Why use many token when few token do trick

https://github.com/JuliusBrussee/caveman
715•tosh•18h ago•313 comments

Show HN: Mdarena – Benchmark your Claude.md against your own PRs

https://github.com/HudsonGri/mdarena
11•hudsongr•3h ago•1 comments

Friendica – A Decentralized Social Network

https://friendi.ca/
135•janandonly•16h ago•48 comments

OpenJDK: Panama

https://openjdk.org/projects/panama/
42•tosh•8h ago•12 comments

Finnish sauna heat exposure induces stronger immune cell than cytokine responses

https://www.tandfonline.com/doi/full/10.1080/23328940.2026.2645467#abstract
339•Growtika•13h ago•221 comments