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Show HN: Moli P2P – An ephemeral, serverless image gallery (Rust and WebRTC)

https://moli-green.is/
1•ShinyaKoyano•59s ago•0 comments

How I grow my X presence?

https://www.reddit.com/r/GrowthHacking/s/UEc8pAl61b
1•m00dy•2m ago•0 comments

What's the cost of the most expensive Super Bowl ad slot?

https://ballparkguess.com/?id=5b98b1d3-5887-47b9-8a92-43be2ced674b
1•bkls•3m ago•0 comments

What if you just did a startup instead?

https://alexaraki.substack.com/p/what-if-you-just-did-a-startup
1•okaywriting•9m ago•0 comments

Hacking up your own shell completion (2020)

https://www.feltrac.co/environment/2020/01/18/build-your-own-shell-completion.html
1•todsacerdoti•12m ago•0 comments

Show HN: Gorse 0.5 – Open-source recommender system with visual workflow editor

https://github.com/gorse-io/gorse
1•zhenghaoz•13m ago•0 comments

GLM-OCR: Accurate × Fast × Comprehensive

https://github.com/zai-org/GLM-OCR
1•ms7892•14m ago•0 comments

Local Agent Bench: Test 11 small LLMs on tool-calling judgment, on CPU, no GPU

https://github.com/MikeVeerman/tool-calling-benchmark
1•MikeVeerman•15m ago•0 comments

Show HN: AboutMyProject – A public log for developer proof-of-work

https://aboutmyproject.com/
1•Raiplus•15m ago•0 comments

Expertise, AI and Work of Future [video]

https://www.youtube.com/watch?v=wsxWl9iT1XU
1•indiantinker•15m ago•0 comments

So Long to Cheap Books You Could Fit in Your Pocket

https://www.nytimes.com/2026/02/06/books/mass-market-paperback-books.html
3•pseudolus•16m ago•1 comments

PID Controller

https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller
1•tosh•20m ago•0 comments

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

https://twitter.com/AlecStapp/status/2019932764515234159
2•bkls•20m ago•0 comments

Kubernetes MCP Server

https://github.com/yindia/rootcause
1•yindia•21m ago•0 comments

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

https://rokn.io/posts/building-movie-recommendation-agent
4•roknovosel•21m 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•30m ago•0 comments

Sidestepping Evaluation Awareness and Anticipating Misalignment

https://alignment.openai.com/prod-evals/
1•taubek•30m ago•0 comments

OldMapsOnline

https://www.oldmapsonline.org/en
1•surprisetalk•32m ago•0 comments

What It's Like to Be a Worm

https://www.asimov.press/p/sentience
2•surprisetalk•32m 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...
2•surprisetalk•32m 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...
4•pseudolus•33m 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•33m ago•0 comments

Bogus Pipeline

https://en.wikipedia.org/wiki/Bogus_pipeline
1•doener•34m 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...
2•1vuio0pswjnm7•35m 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•35m ago•0 comments

Cycling in France

https://www.sheldonbrown.com/org/france-sheldon.html
2•jackhalford•36m ago•0 comments

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

1•abhay1633•37m ago•0 comments

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

https://github.com/JJLDonley/Simple
2•tangjiehao•39m ago•0 comments

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

https://caratria.com/
1•jonrosner•40m ago•1 comments

My Eighth Year as a Bootstrapped Founde

https://mtlynch.io/bootstrapped-founder-year-8/
1•mtlynch•41m ago•0 comments
Open in hackernews

Objective C Devs: How hard was it to switch to Swift?

3•tolarewaju3•8mo ago
My app is written in objective c and has been for years. Obviously a lot of libraries are only being created in Swift. I know that eventually I'm going to have to change, but I'm curious as to how hard that was

Comments

sherdil2022•8mo ago
What is your app?

Swift is a breeze compared to Objective C. Instead of conversion, consider rewriting it from scratch using Swift.

tolarewaju3•8mo ago
It's a real-world game to beat social anxiety called Roadmap. It's not super complex. Here are the main technologies I'm using.

AWS DynamoDB

AWS Cognito

AWS Lambda for AI calls

Cocoa Control libraries for showing players challenges, progress, and unlocks

OneSignal Push Notifs to notify players of changing game state

I know that all of these have Swift libraries or probably some similar ones. And I've written some swift code. But I'm just wondering about the syntax shift or other gotchas that I may not be thinking about. Even things like connecting to the storyboard seem like they might have minor differences

ben_w•8mo ago
Storyboard is probably the closest to a gotcha, because all the views have to be optionals, even though your code will never see them in a nil state. This is the only sensible case I've seen for swift to have implicitly unwrapped optionals (that's the ones declared with a !)
ben_w•8mo ago
Fairly easy. The language itself is an improvement, the hardest part was the correct use of ?, ??, and !, which isn't that hard.

Lots of the kind of mistake one can make in ObjC and only notice at runtime, get caught at compile time in swift.

The frameworks are more of a mess: SwiftUI is something I want to like, but mostly gets in the way. There's now too many different ways to do background tasks, all promising to solve everything.

But you can still use UIKit and GCD, and I prefer to when I can.