1
I downloaded all 1.6M posts on Bluesky
I downloaded all the posts on Bluesky as of 2023-05-01. Then I did some data analysis on the 1680399 posts from 45457 accounts.
Worth Doing Badly
Programming experiments by @zhuowei.
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Visit worthdoingbadly.com → RSS feedOn Hacker News May 2018 – May 2023
Systems & Performance 6Software Engineering 3Security & Privacy 2Society, Policy & Culture 1Hardware & Electronics 1Databases & Data 1
2
Booting a macOS Apple Silicon Kernel in QEMU
I booted the arm64e kernel of macOS 11.0.1 beta 1 kernel in QEMU up to launchd. It’s completely useless, but may be interesting if you’re wondering how an Apple Silicon Mac will boot.
3
Apps for which macOS applies compatibillity fixes
What do Photoshop, Matlab, Panic Transmit, and Eclipse have in common? They are among the 299 apps for which macOS applies compatibillity fixes.
4
Hardware-accelerated Linux virtual machines on jailbroken iPhone 12 / iOS 14.1
I unlocked Hypervisor.framework on my jailbroken phone and modified UTM, a popular QEMU port for iOS, to run arm64 Linux in a VM at full native speed. …for the clickbait - and to show iPhone’s untapped potential.
5
Jailbroken iOS can't run macOS apps – I spent a week to find out why (2021)
I ran command line macOS tools, such as Bash and Geekbench, on a jailbroken iPhone by replacing iOS’s dyld shared cache (all of iOS’s code) with macOS’s. However, graphical apps will never work: macOS’s WindowServer won’t start, since iOS’s drivers are too different.
6
Get root on macOS 13.0.1 the macOS Dirty Cow bug
Get root on macOS 13.0.1 with CVE-2022-46689 (macOS equivalent of the Dirty Cow bug), using the testcase extracted from Apple’s XNU source.
7
Almost booting an iOS kernel in QEMU
I tried to boot an iOS 12 kernelcache in QEMU: I managed to get as far as IOKit startup before receiving a kernel panic. I learned a lot about how iOS boots up with this project.