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I turned my Airbnb listing AI analyzer into a public leaderboard

https://shortrentals.ai/listings/directory
1•samirt•35s ago•1 comments

Redis's Homegrown JSON Parser

https://github.com/redis/redis/pull/13959
1•tuananh•1m ago•0 comments

Rearrangement in a Catalyst Improves Selectivity in Dehydrogenation of Propane

https://pubs.acs.org/doi/10.1021/jacs.5c13571
1•PaulHoule•4m ago•0 comments

Type-Safe Python for TypeScript Developers

https://spin.atomicobject.com/type-safe-python/
1•philk10•5m ago•0 comments

Show HN: I built a 3D probability map for a White Christmas (React and Mapbox)

https://whitexmas.app
1•stlattack•6m ago•1 comments

Pat Gelsinger's EUV lithography gig gets $150M wink from Uncle Sam

https://www.theregister.com/2025/12/03/us_150m_xlight/
1•alecco•6m ago•0 comments

Meta's Child Sex-Trafficking Problem

https://www.afterbabel.com/p/metas-child-sex-trafficking-problem
2•Desafinado•6m ago•1 comments

Sam Altman Has Explored Deal to Build Competitor to Elon Musk's SpaceX

https://www.wsj.com/tech/ai/sam-altman-has-explored-deal-to-build-competitor-to-elon-musks-spacex...
1•perihelions•6m ago•1 comments

Ask HN: Glasses with lights that flash whenever they detect cigarette smoke?

1•amichail•7m ago•0 comments

Easy Trap

https://stackdiver.com/posts/easy-trap/
2•stackdiver•10m ago•1 comments

Show HN: TypMo – Markdown for Wireframing

https://typmo.com/
1•aditgupta•11m ago•0 comments

From quest‑hunting to cartography: a guide to contributing to OpenStreetMap

https://alternativeto.net/news/2025/12/from-quest-hunting-to-cartographer-craft-a-guide-to-contri...
2•elliot_a•11m ago•1 comments

SVG Filters – Clickjacking 2.0

https://lyra.horse/blog/2025/12/svg-clickjacking/
1•todsacerdoti•14m ago•0 comments

Show HN: UI front end to forecast with foundation time-series models

https://faim.it.com/
1•ChernovAndrei•14m ago•0 comments

Show HN: Open-Source FinOps – AWS/GCP Cost Analytics with ClickHouse and Rill

https://www.ssp.sh/blog/finops-dlt-clickhouse-rill/
1•articsputnik•14m ago•0 comments

How to Spot a Monopoly

https://worksinprogress.co/issue/how-to-spot-a-monopoly/
2•bensouthwood•15m ago•0 comments

Meta's Wearables Device Access Toolkit: Dev Preview Available Now

https://developers.meta.com/blog/introducing-meta-wearables-device-access-toolkit/
1•lisajaloza•16m ago•1 comments

Show HN: I Made a Multi-Project Time Tracking Timeline

https://ativium-freelancing.com
1•alexii05•18m ago•1 comments

An Abstract Arsenal: Future Tokens in Claude Skills

https://jordanmrubin.substack.com/p/an-abstract-arsenal
1•RhysU•19m ago•0 comments

How to Build Spotify Wrapped Using Spotify API on Emergent

https://emergent.sh/tutorial/how-to-build-spotify-wrapped-using-spotify-api
1•janpio•19m ago•0 comments

Tell HN: Kafkaesque Argentina Facts

1•wvlia5•19m ago•0 comments

Tell HN: The difference between AI computing, and old skool computing

1•keepamovin•20m ago•0 comments

Hank Green and the Fantastical Tales of God AIs

https://www.fromjason.xyz/p/notebook/hank-green-and-the-fantastical-tales-of-god-ais/
2•speckx•20m ago•0 comments

Show HN: RainCheck – Weather-aware running trainer I built in 5 days with Claude

https://raincheck.ankushdixit.com
1•pless•24m ago•1 comments

Show HN: Tuistory – Playwright for terminal user interfaces

https://github.com/remorses/tuistory
1•xmorse•24m ago•0 comments

AI/ML Security Resources?

1•nidme25•24m ago•0 comments

Wan 2.6 – AI video generator with native lip-sync and audio-visual alignment

https://komiko.app/image-animation-generator/wan-26
1•reabsorb•26m ago•0 comments

Take control of your data: How Safebox makes self-hosting easier

https://medium.com/@domjanrebeka2000/take-control-of-your-data-how-safebox-makes-self-hosting-eas...
1•drebora•28m ago•0 comments

We tested Europe's luxurious new 'business-class' sleeper bus

https://www.theguardian.com/travel/2025/dec/04/new-luxury-sleeper-bus-service-europe-twiliner-ams...
2•robin_reala•30m ago•0 comments

Department of Defense Law of War Manual [pdf]

https://media.defense.gov/2023/Jul/31/2003271432/-1/-1/0/DOD-LAW-OF-WAR-MANUAL-JUNE-2015-UPDATED-...
2•reaperducer•31m ago•0 comments
Open in hackernews

Show HN: Avatar Cropper – Quickly Crop Avatar for Discord, X, etc.

https://avatarcropper.app
1•yong1024•58m ago
I built Avatar Cropper to help users frame perfect avatars without sending photos to a server.

It runs 100% in your browser for maximum privacy.

The tool now supports fetching images via URL, applying filters, and works offline. It is free, open-source, and requires no signup.

Comments

yong1024•54m ago
I got tired of uploading my personal photos to random servers just to crop a Discord avatar. Simple tasks shouldn't cost privacy. I built this over a weekend using the Canvas API to ensure everything stays client-side. It’s lightweight, requires no backend for image processing, and solves the hassle of 'upload to crop' tools. Hope you find it useful!

You can access to the web app by: https://avatarcropper.app