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AI's hidden carbon and water footprint

https://vu.nl/en/news/2025/ai-s-hidden-carbon-and-water-footprint
1•belter•49s ago•0 comments

Spain fines Airbnb €65M: Why the government is cracking down on illegal rentals

https://www.euronews.com/travel/2025/12/15/spain-fines-airbnb-65-million-why-the-government-is-cr...
2•robtherobber•1m ago•0 comments

The Continuity of Rotation Representations in Neural Networks [pdf]

https://openaccess.thecvf.com/content_CVPR_2019/papers/Zhou_On_the_Continuity_of_Rotation_Represe...
1•jackling•1m ago•0 comments

Show HN: Ada – A governed AI that validates before generating

https://github.com/jaredlewiswechs/ada-newton
1•jared_lewisparc•1m ago•0 comments

Why your Economy class seat is torturing you – possibly on purpose

https://newatlas.com/aircraft/aircraft-flight-economy-seat-uncomfortable/
1•Brajeshwar•2m ago•0 comments

The world will soon be losing 3000 glaciers every year

https://www.newscientist.com/article/2508713-the-world-will-soon-be-losing-3000-glaciers-every-year/
1•Brajeshwar•2m ago•0 comments

Orange rivers, melting glaciers: federal report shows rapid change in the Arctic

https://www.npr.org/2025/12/16/nx-s1-5639224/arctic-climate-change-noaa-report
1•Brajeshwar•2m ago•0 comments

Show HN: Netrinos – Zero-config mesh VPN

https://netrinos.com
1•pcarroll•4m ago•1 comments

Trump Media announces $6B merger with fusion company TAE Technologies

https://www.cnbc.com/2025/12/18/trump-media-djt-tae-fusion-merger.html
2•postflopclarity•5m ago•1 comments

Maestro – Run AI coding agents autonomously for days (Free/OSS)

https://github.com/pedramamini/Maestro
1•sschueller•6m ago•0 comments

Ask HN: How much more Antigravity do you get on paid plans?

1•bluelightning2k•6m ago•0 comments

Structured reasoning for AI coding tools – Quint Code

https://github.com/m0n0x41d/quint-code
1•chrisconley•6m ago•0 comments

SF's Marina Could Get 790 Homes. Mayor Daniel Lurie Says No. YIMBYs Say Yes

https://www.governance.fyi/p/san-franciscos-marina-could-get-790
1•toomuchtodo•7m ago•1 comments

Show HN: FastRAG Next.js RAG boilerplate with precise PDF citation highlighting

https://www.fastrag.live
1•workwithtrp•9m ago•0 comments

Creating Diagrams in Markdown on GitHub

https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/creatin...
2•robin_reala•11m ago•0 comments

Show HN: Generate Schema.org Markup for Right to Repair and DPP Compliance

https://tools.verisav.fr/tools/dpp-compliance-checker
1•Kevin_Bouti•11m ago•0 comments

Create a simple MCP based agent in Rust

https://santurcesoftware.com/create-mcp-agent
1•boredumb•13m ago•0 comments

Minification Isn't Obfuscation

https://martinalderson.com/posts/minification-isnt-obfuscation-claude-code-proves-it/
1•ecares•14m ago•0 comments

I Went from Database Noob to Core Datafusion Contribution

https://datafusion.blog.apache.org/2025/12/15/avoid-consecutive-repartitions/
2•SchwKatze•16m ago•0 comments

SWE-Bench: The $500B Benchmark

https://marginlab.ai/blog/swe-bench-deep-dive/
4•qwesr123•20m ago•0 comments

Dr. Terry Frederick, longtime UCF CS leader, has died

https://townsonrose.mem.com/Obituary/12670299/278208083/278208080?title=Obituary
3•randusername•20m ago•1 comments

Trump's social media venture strikes $6B merger deal with fusion power company

https://www.politico.com/news/2025/12/18/trump-social-media-merger-deal-00697310
4•mitchbob•20m ago•0 comments

Experts Say Even Average Venezuelans Critical of Maduro Won't Back Regime Change

https://truthout.org/articles/experts-say-even-average-venezuelans-critical-of-maduro-wont-back-r...
1•robtherobber•22m ago•0 comments

Show HN: HN Wrapped 2025 – let an LLM analyze your year on Hacker News

https://hn-wrapped.kadoa.com?year=2025
3•hubraumhugo•23m ago•0 comments

Are Apple Gift Cards Safe to Redeem?

https://daringfireball.net/linked/2025/12/17/are-apple-gift-cards-safe-to-redeem
12•tosh•23m ago•4 comments

Running a full voice stack (ASR –> LLM –> TTS) locally with Docker

https://www.docker.com/blog/develop-deploy-voice-ai-apps/
1•3Sophons•25m ago•1 comments

systemd v259 Released

https://github.com/systemd/systemd/releases/tag/v259
3•voxadam•26m ago•0 comments

Engineering dogmas it's time to retire

https://newsletter.manager.dev/p/5-engineering-dogmas-its-time-to
1•flail•26m ago•0 comments

Ask HN: How are you building a company-wide MCP strategy?

1•shouche•28m ago•1 comments

Hatred of Israel Caused Iran's Water Crisis

https://aish.com/hatred-of-israel-caused-irans-water-crisis/
2•mhb•29m ago•2 comments
Open in hackernews

Mathgpt.today Discord Bot

https://mathgpt.today/
1•umeedsto•10h ago

Comments

umeedsto•10h ago
Hi HN,

I built a Discord bot for MathGPT.today that helps students work through math problems inside Discord, with an emphasis on clear step by step reasoning instead of just spitting out an answer.

What it does

Slash command solve: type a question and get a structured solution with the final answer plus the steps

Image support: upload a photo or screenshot of a problem and get it solved

Clean math formatting: renders formulas clearly so it is readable in chat

Follow ups: ask “why” or “show another example” without retyping everything

Why I made it A lot of students already study in Discord servers, but most math help there is either low quality or too hard to read. I wanted something that feels like a helpful tutor in the same place students already hang out.

Try it Bot invite: https://discord.com/oauth2/authorize?client_id=1448732030543... Website: https://mathgpt.today

Feedback I would love from HN

What would make this actually useful in a real study server

Any Discord UX ideas for making step by step solutions easier to skim

Features you would want as a teacher or tutor (homework mode, hints only, practice quizzes, etc.)

If you try it and it breaks or gives a confusing explanation, tell me what you typed or uploaded and I will use that to improve it.

ZuoCen_Liu•7h ago
I just tried it, and it seems there's a problem with following up: I asked it what the non-associativity of octonions means. Its answer mentioned "unique applications in physics". I followed up with "What are the unique applications in physics?", but it answered irrelevant things.