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US Accuses China of Secret Nuclear Testing

https://www.reuters.com/world/china/trump-has-been-clear-wanting-new-nuclear-arms-control-treaty-...
1•jandrewrogers•28s ago•0 comments

Peacock. A New Programming Language

1•hashhooshy•5m ago•1 comments

A postcard arrived: 'If you're reading this I'm dead, and I really liked you'

https://www.washingtonpost.com/lifestyle/2026/02/07/postcard-death-teacher-glickman/
2•bookofjoe•6m ago•1 comments

What to know about the software selloff

https://www.morningstar.com/markets/what-know-about-software-stock-selloff
2•RickJWagner•10m ago•0 comments

Show HN: Syntux – generative UI for websites, not agents

https://www.getsyntux.com/
3•Goose78•10m ago•0 comments

Microsoft appointed a quality czar. He has no direct reports and no budget

https://jpcaparas.medium.com/ab75cef97954
2•birdculture•11m ago•0 comments

AI overlay that reads anything on your screen (invisible to screen capture)

https://lowlighter.app/
1•andylytic•12m ago•1 comments

Show HN: Seafloor, be up and running with OpenClaw in 20 seconds

https://seafloor.bot/
1•k0mplex•12m ago•0 comments

Tesla turbine-inspired structure generates electricity using compressed air

https://techxplore.com/news/2026-01-tesla-turbine-generates-electricity-compressed.html
2•PaulHoule•14m ago•0 comments

State Department deleting 17 years of tweets (2009-2025); preservation needed

https://www.npr.org/2026/02/07/nx-s1-5704785/state-department-trump-posts-x
2•sleazylice•14m ago•1 comments

Learning to code, or building side projects with AI help, this one's for you

https://codeslick.dev/learn
1•vitorlourenco•14m ago•0 comments

Effulgence RPG Engine [video]

https://www.youtube.com/watch?v=xFQOUe9S7dU
1•msuniverse2026•16m ago•0 comments

Five disciplines discovered the same math independently – none of them knew

https://freethemath.org
3•energyscholar•16m ago•1 comments

We Scanned an AI Assistant for Security Issues: 12,465 Vulnerabilities

https://codeslick.dev/blog/openclaw-security-audit
1•vitorlourenco•17m ago•0 comments

Amazon no longer defend cloud customers against video patent infringement claims

https://ipfray.com/amazon-no-longer-defends-cloud-customers-against-video-patent-infringement-cla...
2•ffworld•18m ago•0 comments

Show HN: Medinilla – an OCPP compliant .NET back end (partially done)

https://github.com/eliodecolli/Medinilla
2•rhcm•21m ago•0 comments

How Does AI Distribute the Pie? Large Language Models and the Ultimatum Game

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6157066
1•dkga•21m ago•1 comments

Resistance Infrastructure

https://www.profgalloway.com/resistance-infrastructure/
2•samizdis•26m ago•1 comments

Fire-juggling unicyclist caught performing on crossing

https://news.sky.com/story/fire-juggling-unicyclist-caught-performing-on-crossing-13504459
1•austinallegro•26m ago•0 comments

Restoring a lost 1981 Unix roguelike (protoHack) and preserving Hack 1.0.3

https://github.com/Critlist/protoHack
2•Critlist•28m ago•0 comments

GPS and Time Dilation – Special and General Relativity

https://philosophersview.com/gps-and-time-dilation/
1•mistyvales•31m ago•0 comments

Show HN: Witnessd – Prove human authorship via hardware-bound jitter seals

https://github.com/writerslogic/witnessd
1•davidcondrey•31m ago•1 comments

Show HN: I built a clawdbot that texts like your crush

https://14.israelfirew.co
2•IsruAlpha•33m ago•2 comments

Scientists reverse Alzheimer's in mice and restore memory (2025)

https://www.sciencedaily.com/releases/2025/12/251224032354.htm
2•walterbell•36m ago•0 comments

Compiling Prolog to Forth [pdf]

https://vfxforth.com/flag/jfar/vol4/no4/article4.pdf
1•todsacerdoti•37m ago•0 comments

Show HN: Cymatica – an experimental, meditative audiovisual app

https://apps.apple.com/us/app/cymatica-sounds-visualizer/id6748863721
1•_august•39m ago•0 comments

GitBlack: Tracing America's Foundation

https://gitblack.vercel.app/
9•martialg•39m ago•1 comments

Horizon-LM: A RAM-Centric Architecture for LLM Training

https://arxiv.org/abs/2602.04816
1•chrsw•39m ago•0 comments

We just ordered shawarma and fries from Cursor [video]

https://www.youtube.com/shorts/WALQOiugbWc
1•jeffreyjin•40m ago•1 comments

Correctio

https://rhetoric.byu.edu/Figures/C/correctio.htm
1•grantpitt•40m 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.