These packages are a bit strange in that they install binaries for x86_64 with following PKGBUILD's arch=('x86_64') https://aur.archlinux.org/packages/distrho-arctican/ https://aur.archlinux.org/packages/distrho-bin/ https://aur.archlinux.org/packages/distrho-drowaudio/ https://aur.archlinux.org/packages/distrho-highlife/ https://aur.archlinux.org/packages/distrho-hybridreverb2/ https://aur.archlinux.org/packages/distrho-juced/ https://aur.archlinux.org/packages/distrho-tal/ https://aur.archlinux.org/packages/distrho-wolpertinger/ and x86 binaries with these PKGBUILD's arch=('i686') https://aur.archlinux.org/packages/lib32-distrho-arctican/ https://aur.archlinux.org/packages/lib32-distrho-bin/ https://aur.archlinux.org/packages/lib32-distrho-drowaudio/ https://aur.archlinux.org/packages/lib32-distrho-highlife/ https://aur.archlinux.org/packages/lib32-distrho-hybridreverb2/ https://aur.archlinux.org/packages/lib32-distrho-juced/ https://aur.archlinux.org/packages/lib32-distrho-tal/ https://aur.archlinux.org/packages/lib32-distrho-wolpertinger/ Both groups install binaries to /usr/lib/lv2/ My understanding of lib32 packages are that they provide 32bit libaries in a x86_64 environment installed to /usr/lib32, eg arch=('x86_64') but installing to /usr/lib32 Source code is provided (with a small update) - for which I've created PKGBUILD's They correspond to distrho-git which builds separate packages for lv2, dssi etc.pp.