Quickstart

sudo curl -o /etc/apt/trusted.gpg.d/org_codeberg_odkr.asc \
    https://codeberg.org/api/packages/odkr/debian/repository.key
sudo tee /etc/apt/sources.list.d/org_codeberg_odkr.list <<EOF
deb https://codeberg.org/api/packages/odkr/debian bullseye main
EOF
sudo apt-get update
sudo apt-get install sievemgr
pip install sievemgr

“Debian” also works for Debian-based distributions (e.g., Mint, MX, Pop!_OS, Ubuntu, or Zorin).

See Installation for details, troubleshooting, and a signed tarball.