I've taught iOS development to 20,000+ people. Helping indies ship with launchbuddy.app
Germany
- Tweets 9,175
- Following 753
- Followers 11,710
- Likes 36,905
Pinned Tweet
iPhone Duo is coming and your agents won't have a clue how to build for it
So I turned all the new documentation, APIs and developer sessions into an agent skill
Grab it here: github.com/FloWritesCode/fwc…
The skill will get updated as new APIs / Xcode 27.1 gets introduced
Made with AI
34
74
993
66,587
Flo writes Code retweeted
このサイトすごい
iPhone Duoの表示エリアとSafeAreaが分かりやすい
safearea.info/
5
188
2,206
266,888
Flo writes Code retweeted
Xcode 27 exposes 50+ tools that agents can use via MCP to create, build, configure, test, and debug. Here's a useful reference list of what's available to agents like Claude, Antigravity, and Codex.
ALT Xcode MCP Tools for Agents: 54 tools in 10 groups. Workspaces and Projects: list, open and close workspaces; list templates; new project; new target. Files: list, find, search, read, write, edit, move and remove files; create folder. Configuration: list targets and schemes; switch scheme; list and switch destinations; get and update build settings and file compiler flags; add entitlement; set Info.plist key. Build and Run: build; build log; check file for issues; run; get console output; stop. Previews and Debugging: render preview; run code snippet; debugger commands. Testing: list and switch test plans; list tests; run all or some tests. Devices and Simulators: start session, with or without workspace; install and run app; send taps, swipes and typing; end session. Localization: prepare; read string catalog; get string context; add translation. Crashes and Performance: top crash issues and logs; top field performance issues and logs. Documentation: search. Xcode 27.0, Sept 2026.
7
48
354
21,313
Flo writes Code retweeted
🚨 Announcement: I am looking for 100 channels to implement my 2027 YouTube playbook with!
Today, we officially open up applications for my next Accelerator cohort.
The program behind some of the fastest growing youtube channels in the world.
In October we will take 50-100 creators and give them:
- 8 weeks of intense training (all live with me)
- 30+ hours of material
- Our full playbook to dominate any niche
- Our ideation system for million view videos
- Personalized strategy support to build their plan
- Personalized feedback and execution help
We’ve grown channels from 1k views a video to 500k+
$100/month to $10,000/month (in months)
Had multiple creators post 5m+ videos DURING the cohorts. Even some 10m+.
Look at the endless testimonials on the site (from real channels you can look up haha)
Applications open today (link below).
Apply and if we think we can grow your channel, I’ll reach out personally.
Only about 10% of applications get into the program. We prioritize student results over everything.
It's not affordable for everyone, so I’ll also be giving away a free scholarship (funded by me)!
Just RT and like this post and I’ll pick a winner on Monday.
Can’t wait to see the next group of creators go through our program and dominate 2027. ❤️
32
145
409
37,587
Flo writes Code retweeted
This drawOn symbol effect is easy to take for granted, but it was actually a lot of work to get right.
1. SF symbols are not strokes. If you look closely at the signature, not all portions of the path are the same width.
2. Moving along the path and naively filling it would look awful! Consider filling along curves where one side of the path is shorter than the other. You want the animation to fill gracefully, but there's nothing that connects the two sides of the path.
The solution was to annotate each symbol with these "railroad track" guides
SwiftUI Tip 💡
Want an SF Symbol that draws itself on?
In iOS 26+, use .symbolEffect(.drawOn, isActive:).
9
29
742
73,409
Flo writes Code retweeted
Here we go!
iOS27.2+
all devices
worldwide
including search tab
h/t @facuberte
pix @s23amourai
1
11
17,412
Flo writes Code retweeted
Strike a pose with your iPhone Duo screenshots. Drop a shot (or video) in Bezel and choose which pose to frame it in! :)
ALT The Bezel editor on a Mac framing an iPhone Duo screenshot standing up like a tent, with the pose picker in the sidebar
1
1
2
382
My new Mac Studio is finally "preparing for delivery" - looking good for my expected pickup date of Friday
Can't wait to try out this beast!
5
677
Flo writes Code retweeted
Want to use @typesafeai's Jev in your @SwiftLang apps using the convenience of Apple's Foundation Models framework?
Well - here you go (GitHub repo link in the replies)!
(h/t to @rxwei for the inspiration!)
4
16
127
6,816
Flo writes Code retweeted
I've started looking into the new SwiftUI APIs for iPhone Duo in Xcode 27.1 and wrote a post on configuring toolbars, adapting custom labels, and prioritizing toolbar actions or tabs when space is limited:
nilcoalescing.com/blog/Confi…
5
21
205
13,511
There are 100 days left in 2026
How will you make them count?
Perhaps by finally shipping your side project?
launchbuddy.app is what you need
9
1,160
Make your apps stand out in the App Store by adopting the new image & video banners
piped.video/watch?v=PJv9T83C…
4
2
75
13,592
Flo writes Code retweeted
Jev is a fantastic example of co-designing SDKs and models to unlock a new paradigm!
When we were designing the Swift API for Apple’s Foundation Models framework two years ago, we wanted to make type-safe structured responses the standard for apps on our platform. That is why we created the `@Generable` API, making constrained decoding approachable to app developers. This effectively eliminated structural hallucinations in both tool call arguments and responses, which were especially important for a small on-device model. developer.apple.com/document…
It would be fascinating to see decision models conform to the `LanguageModel` protocol and work with `@Generable` natively! The best part is that all the APIs are already there: Bools are "noul", enums represent choices, and `@Guide` descriptions are instructions. A Swift model implementation simply needs to handle a schema conversation, and output probabilities can be stored directly in the response metadata. developer.apple.com/document…
7
14
166
12,490
