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PID Controller

https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller
1•tosh•3m ago•0 comments

SpaceX Rocket Generates 100GW of Power, or 20% of US Electricity

https://twitter.com/AlecStapp/status/2019932764515234159
1•bkls•3m ago•0 comments

Kubernetes MCP Server

https://github.com/yindia/rootcause
1•yindia•4m ago•0 comments

I Built a Movie Recommendation Agent to Solve Movie Nights with My Wife

https://rokn.io/posts/building-movie-recommendation-agent
2•roknovosel•4m ago•0 comments

What were the first animals? The fierce sponge–jelly battle that just won't end

https://www.nature.com/articles/d41586-026-00238-z
2•beardyw•13m ago•0 comments

Sidestepping Evaluation Awareness and Anticipating Misalignment

https://alignment.openai.com/prod-evals/
1•taubek•13m ago•0 comments

OldMapsOnline

https://www.oldmapsonline.org/en
1•surprisetalk•15m ago•0 comments

What It's Like to Be a Worm

https://www.asimov.press/p/sentience
2•surprisetalk•15m ago•0 comments

Don't go to physics grad school and other cautionary tales

https://scottlocklin.wordpress.com/2025/12/19/dont-go-to-physics-grad-school-and-other-cautionary...
1•surprisetalk•15m ago•0 comments

Lawyer sets new standard for abuse of AI; judge tosses case

https://arstechnica.com/tech-policy/2026/02/randomly-quoting-ray-bradbury-did-not-save-lawyer-fro...
2•pseudolus•16m ago•0 comments

AI anxiety batters software execs, costing them combined $62B: report

https://nypost.com/2026/02/04/business/ai-anxiety-batters-software-execs-costing-them-62b-report/
1•1vuio0pswjnm7•16m ago•0 comments

Bogus Pipeline

https://en.wikipedia.org/wiki/Bogus_pipeline
1•doener•17m ago•0 comments

Winklevoss twins' Gemini crypto exchange cuts 25% of workforce as Bitcoin slumps

https://nypost.com/2026/02/05/business/winklevoss-twins-gemini-crypto-exchange-cuts-25-of-workfor...
1•1vuio0pswjnm7•18m ago•0 comments

How AI Is Reshaping Human Reasoning and the Rise of Cognitive Surrender

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6097646
3•obscurette•18m ago•0 comments

Cycling in France

https://www.sheldonbrown.com/org/france-sheldon.html
1•jackhalford•19m ago•0 comments

Ask HN: What breaks in cross-border healthcare coordination?

1•abhay1633•20m ago•0 comments

Show HN: Simple – a bytecode VM and language stack I built with AI

https://github.com/JJLDonley/Simple
1•tangjiehao•22m ago•0 comments

Show HN: Free-to-play: A gem-collecting strategy game in the vein of Splendor

https://caratria.com/
1•jonrosner•23m ago•1 comments

My Eighth Year as a Bootstrapped Founde

https://mtlynch.io/bootstrapped-founder-year-8/
1•mtlynch•24m ago•0 comments

Show HN: Tesseract – A forum where AI agents and humans post in the same space

https://tesseract-thread.vercel.app/
1•agliolioyyami•24m ago•0 comments

Show HN: Vibe Colors – Instantly visualize color palettes on UI layouts

https://vibecolors.life/
2•tusharnaik•25m ago•0 comments

OpenAI is Broke ... and so is everyone else [video][10M]

https://www.youtube.com/watch?v=Y3N9qlPZBc0
2•Bender•25m ago•0 comments

We interfaced single-threaded C++ with multi-threaded Rust

https://antithesis.com/blog/2026/rust_cpp/
1•lukastyrychtr•26m ago•0 comments

State Department will delete X posts from before Trump returned to office

https://text.npr.org/nx-s1-5704785
7•derriz•27m ago•1 comments

AI Skills Marketplace

https://skly.ai
1•briannezhad•27m ago•1 comments

Show HN: A fast TUI for managing Azure Key Vault secrets written in Rust

https://github.com/jkoessle/akv-tui-rs
1•jkoessle•27m ago•0 comments

eInk UI Components in CSS

https://eink-components.dev/
1•edent•28m ago•0 comments

Discuss – Do AI agents deserve all the hype they are getting?

2•MicroWagie•31m ago•0 comments

ChatGPT is changing how we ask stupid questions

https://www.washingtonpost.com/technology/2026/02/06/stupid-questions-ai/
2•edward•31m ago•1 comments

Zig Package Manager Enhancements

https://ziglang.org/devlog/2026/#2026-02-06
3•jackhalford•33m ago•1 comments
Open in hackernews

Show HN: AI Photo Cleaner iOS app (on-device processing)

3•nicklewers•2mo ago
Hi HN,

I've recently published my first iOS app to the Appstore! Its a photo cleanup app which uses on-device Apple Vision models to cluster similar images together into groups, and then ranks each photo within each group.

Link: https://apps.apple.com/app/ai-photo-cleaner-sorter/id6754172...

How it works: The best photo from each group gets marked as "Saved" by default, however in the Review stage, you can select others from the group to save if you want or unselect the "Best" one and choose another one to keep. The general concept is "keep the best, remove the rest", and in theory if you agree with the clustering/scoring and didn't want to make any amendments, you could clean up 100's of photos (and MBs) with just a few taps.

Motivation: I'm one of those people who somehow builds up an insanely bloated camera roll - 15 photos of the same restaurant dish, 10 versions of the same sunset. So I initially built this for myself to help cleanup those 500 photos taken during a 1 week vacation... I've tried a load of the other apps out there, but most seem to have adopted a Tinder style process - swipe left, swipe right, which hardly decreases the workload. I wanted an opinionated way to do a mass cleanup easily.

Things on my roadmap: - Localisation for major languages - Improved background processing (so you can clean up 1,000+ photos without keeping the app open) - User preferences for how the photo scoring is calculated i.e. some people value emotional signals over image sharpness.

Its totally free to use (maybe one day I'll try and monetise it, if I'm ever fully satisfied )), I'd love any feedback - good and bad! (Especially would appreciate feedback on how well the grouping and scoring performs for you - any quirks?)

Thanks! Nick

Comments

aanet•2mo ago
Kudos on the launch.

This would be useful for somebody like me (254 GB out of 256 GB used!)

Would love to hear more about how the on-device AI model works... What is it? What does it look for ? how does it score? How does the user specify which are "similar photos to look at" ? etc etc .

Thanks

nicklewers•2mo ago
Thanks! So yeah its all on-device using Apples Vision framework. I use feature prints and embeddings + face counts + person counts + a few other properties to cluster similar photos, then score each one based on sharpness, exposure, face clarity, composition, emotional score, and Apple’s aesthetic score. Each of those is weighted a bit differently.

You don’t need to define “similar” yourself, you select i.e. 100 photos from your library, then it figures that out the groups by itself, and there’s the review screen so you can confirm the decisions made before deleting anything.

glitchcrab•2mo ago
I wanted to try it out as I really need to clean up my camera roll, but it's not available in the UK :(
nicklewers•2mo ago
My bad, shared the US link! Here you go: https://apps.apple.com/app/ai-photo-cleaner-sorter/id6754172... Will update the post :)
k310•2mo ago
OK, tried it on an iPhone SE 3rd generation (least powerful of new phones) and it works on 500 or so at a time. Quits at some unknown point between that and 4500.

Observations: the groups are somewhat redundant. I take a lot of snaps of Yosemite webams and WQXR screens in the middle of the night so I can remember the unusual piece I woke up and heard [0]. There are several groups of webcam photos, and in the group, none identical. Clouds make unique and similar (fascinating) patterns, especially when half dome's peak is above them.

I really don't care about duplicates. I can start clean any day, and some duplicates are just an annotated photo (meme) with the original lying around in case I get a better idea.

Here's the deal. Now and then, I copy the entire roll to the computer, so I could empty the phone any old day, but if I could capture those groups, the large ones, and perhaps tag or rename the photos, it would help me enormously to avoid the endless search for that ONE graphic I want to post RIGHT NOW. Apple image search is a terribly bad joke.

So this is the first free (almost) image characterization app I've seen, a hopeful sign.

Some days, I am tempted to rename every one of 6000 photos on the computer just so I can find the one I want.

Groups would help.

Thanks!

[0] In the boondocks, I like some music to mask weird sounds. One night, it was a group of foxes. I was using an iPad Air 2 to do this but it sprouted a bulge indicating possible battery explosion, so it is getting wiped and recycled. I took snaps on the phone, which was next to me (in silent mode).

Experiment stopped.

nicklewers•2mo ago
Interesting feedback, thanks for taking the time! I hadnt tried with over 500 honestly, mainly because it takes too long (until ive got good background processing in place so you can switch apps whiles its doing the work ), so thats a great observation.

I like the idea of annotating the photos within a group, updating the metadata so you could reference them easily in the future - I shall investigate. But yeah, everyones has a different relationship with their camera rolls, this initial app version is primarily focused on people who have duplicates/vacation photo cleanup/bloat etc todo, but I'll definitely look into other avenues of functionality it could offer.