Airborne apt repository
Airborne for Debian and Ubuntu. Installing the package from the download page adds this repository on its own; after that, a new version arrives with sudo apt update && sudo apt upgrade.
Served here: trixie, bookworm, noble.
Adding it by hand
For a machine that has an older package installed, or that never had one. Paste the lines one at a time.
sudo curl -fsSLo /usr/share/keyrings/airborne-archive-keyring.asc https://deb.repo.app-suite.eu/airborne-archive-keyring.asc . /etc/os-release printf 'Types: deb\nURIs: https://deb.repo.app-suite.eu\nSuites: %s\nComponents: stable\nSigned-By: /usr/share/keyrings/airborne-archive-keyring.asc\n' "$VERSION_CODENAME" | sudo tee /etc/apt/sources.list.d/airborne.sources sudo apt update sudo apt install airborne
Receiving beta versions too
The same, with the beta channel added. Stable versions still arrive: apt installs whichever is newer.
sudo curl -fsSLo /usr/share/keyrings/airborne-archive-keyring.asc https://deb.repo.app-suite.eu/airborne-archive-keyring.asc . /etc/os-release printf 'Types: deb\nURIs: https://deb.repo.app-suite.eu\nSuites: %s\nComponents: stable beta\nSigned-By: /usr/share/keyrings/airborne-archive-keyring.asc\n' "$VERSION_CODENAME" | sudo tee /etc/apt/sources.list.d/airborne.sources sudo apt update sudo apt install airborne
The key
airborne-archive-keyring.asc, fingerprint F6E31904614F771A2C2B3C1E6FEF50D43DB8AA38.