Gem

Use the gem hosted on rubygems.org as an universal install method.

gem install bqm --no-wrapper

Gem: bqm

BlackArch

From the repository:

pacman -S bqm

From git:

blackman -i bqm

PKGBUILD: bqm

AUR

Manually:

git clone https://aur.archlinux.org/bqm.git
cd bqm
makepkg -fsri

With an AUR helper (Pacman wrappers), e.g. yay:

yay -S bqm

AUR: bqm

Exegol

bqm is included in Exegol.