NOTE: Using Widevine requires glibc version 2.36 or later. Arch Linux ARM ships an ancient glibc version, and will not work at this time.
However, as of May 8th 2024, Arch Linux ARM has updated glibc to the latest version provided by the regular Arch Linux repository, that version being 2.39. Because of that, the installer works fine on any Arch Linux ARM install, besides the weird caveat of installing the firefox & chromium-based configs in the wrong folder (by default, the script tries to install to a lib64 folder when firefox & chromium's libraries are located in the regular lib folder).
According to the README of this repo:
However, as of May 8th 2024, Arch Linux ARM has updated glibc to the latest version provided by the regular Arch Linux repository, that version being 2.39. Because of that, the installer works fine on any Arch Linux ARM install, besides the weird caveat of installing the firefox & chromium-based configs in the wrong folder (by default, the script tries to install to a
lib64
folder when firefox & chromium's libraries are located in the regularlib
folder).