TIL about this "CustomAvailability" experimental feature in Swift. Looks like Apple is using it for feature flags 👀
| Website | https://rambo.codes |
| https://twitter.com/_inside | |
| Github | https://github.com/insidegui |
| Gigahertz | https://gigahertz.fm |
Gui Rambo
@_inside
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I know a thing or two about AirPods. App developer, security researcher. 🏳️🌈🧩
Apple has made it impossible for third-party apps to suppress the system volume/brightness HUD in macOS 26.3 via a simple notify_post, which is precisely what I was doing in AirBuddy. To do that, they used a new security feature that was introduced because of CVE-2025-24091 😅
I’ve spent several hours today playing around with agents in Xcode 26.3. There are lots of things I like with the integration, but by far the most frustrating aspect is that the agents will sometimes just "forget" that they're running inside Xcode and start trying to run terminal commands for things that they can do with the Xcode integration, even simple things such as reading content from files. The good thing is that telling them to use Xcode instead usually works.
After improving my GPU driver patch, the iOS VM now has fully* working Metal rendering 🥹
* WebKit rendering is still broken, but it's the only broken thing I could find
I had to write a missing component of the AppleParavirtGPU driver, and now things work 🥳
Since a recent firmware release included components for a virtualized iPhone, I decided to see if I could boot one up. It worked!
This is a virtualized iPhone 16 running iOS 26.2.
Don't get too excited though, as this required a substantial amount of IPSW patching and it crashes SpringBoard when I swipe up in the setup screen 😅
Of course I made it using my toy Core Animation editor. I realize I'm slowly creating my own version of After Effects / Motion 😅
