mkosi from home:bluca:mkosi project

For Arch Linux, edit /etc/pacman.conf and add the following (note that the order of repositories in pacman.conf is important, since pacman always downloads the first found package):

[home_bluca_mkosi_Arch]
Server = https://download.opensuse.org/repositories/home:/bluca:/mkosi/Arch/$arch

Then run the following as root

key=$(curl -fsSL https://download.opensuse.org/repositories/home:bluca:mkosi/Arch/$(uname -m)/home_bluca_mkosi_Arch.key)
fingerprint=$(gpg --quiet --with-colons --import-options show-only --import --fingerprint <<< "${key}" | awk -F: '$1 == "fpr" { print $10 }')

pacman-key --init
pacman-key --add - <<< "${key}"
pacman-key --lsign-key "${fingerprint}"

pacman -Sy home_bluca_mkosi_Arch/mkosi

For Debian Testing run the following:

Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).

echo 'deb http://download.opensuse.org/repositories/home:/bluca:/mkosi/Debian_Testing/ /' | sudo tee /etc/apt/sources.list.d/home:bluca:mkosi.list
curl -fsSL https://download.opensuse.org/repositories/home:bluca:mkosi/Debian_Testing/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_bluca_mkosi.gpg > /dev/null
sudo apt update
sudo apt install mkosi

For Fedora Rawhide run the following as root:

dnf config-manager --add-repo https://download.opensuse.org/repositories/home:bluca:mkosi/Fedora_Rawhide/home:bluca:mkosi.repo
dnf install mkosi

For openSUSE Tumbleweed run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:bluca:mkosi/openSUSE_Tumbleweed/home:bluca:mkosi.repo
zypper refresh
zypper install mkosi