One-line install (auto-detects the distribution):
curl -fsSL https://packages.gatebridge.app/install.sh | sudo sh
Debian/Ubuntu: deb [signed-by=fido-daemon.gpg] https://packages.gatebridge.app/debian/<suite>/ ./
RHEL-family: add a repo with baseurl=https://packages.gatebridge.app/repo/<distro>/<arch>/ and gpgkey=.../RPM-GPG-KEY.
See packaging/README.md.