@rinsuki 私の環境(MacBook Air (11-inch, Early 2015))では次のようになりました:
```
$ uname -mrsv
Darwin 21.6.0 Darwin Kernel Version 21.6.0: Wed Apr 24 06:02:02 PDT 2024; root:xnu-8020.240.18.708.4~1/RELEASE_X86_64 x86_64
$ swift check-mpeg2-hwdec.swift
NSOperatingSystemVersion(majorVersion: 12, minorVersion: 7, patchVersion: 5)
true
false
```
@tesaguri ありがとうございます 🙏