M1 iMac: libdvdcss missing

on a new M1 iMac (macOS 12.1) I'm trying to decode a DVD using Handbrake 1.4.2. Since libdvdcss is needed for decryption, I downloaded it from here http://download.videolan.org/pub/libdvdcss/1.4.2/macosx/libdvdcss-1.4.2.pkg

and installed the package, just to see this error

macgui: dlopen error: dlopen(/usr/local/lib/libdvdcss.2.dylib, 0x0001): tried: '/usr/local/lib/libdvdcss.2.dylib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e')), '/usr/lib/libdvdcss.2.dylib' (no such file)

So, obviously there must be an Arm architecture-compatible version of libdvdcss, but I don't know where to get it. And I'm really stuck.

Can someone please give me the crucial tip? Any help is highly appreciated.

Regards Stefan

You can get an ARM version via Homebrew:

$ brew install libdvdcss
...
==> Downloading https://ghcr.io/v2/homebrew/core/libdvdcss/manifests/1.4.3
######################################################################## 100.0%
==> Downloading https://ghcr.io/v2/homebrew/core/libdvdcss/blobs/sha256:c96a2adbc32a57e271a9a91d338571ab9b0a6524a95e3fe48270dd5c4a277b21
==> Downloading from https://pkg-containers.githubusercontent.com/ghcr1/blobs/sha256:c96a2adbc32a57e271a9a91d338571ab9b0a6524a95e3fe48270dd5c4a277b21?se=2021
######################################################################## 100.0%
==> Pouring libdvdcss--1.4.3.arm64_monterey.bottle.tar.gz
🍺  /opt/homebrew/Cellar/libdvdcss/1.4.3: 18 files, 404.4KB
$ file /opt/homebrew/lib/libdvdcss.*
/opt/homebrew/lib/libdvdcss.2.dylib: Mach-O 64-bit dynamically linked shared library arm64
/opt/homebrew/lib/libdvdcss.a:       current ar archive random library
/opt/homebrew/lib/libdvdcss.dylib:   Mach-O 64-bit dynamically linked shared library arm64