DeltaForge apt repository
Signed Debian and Ubuntu packages for DeltaForge. Add the repository, then install with apt.
curl -fsSL https://deltaforge.org/pubkey.asc \
| sudo gpg --dearmor -o /etc/apt/keyrings/deltaforge.gpg
echo "deb [signed-by=/etc/apt/keyrings/deltaforge.gpg] https://apt.deltaforge.org stable main" \
| sudo tee /etc/apt/sources.list.d/deltaforge.list
sudo apt update
sudo apt install deltaforge-cli
See deltaforge.org for documentation and other install methods.