Use the vendor’s own cloud
Documenso sells its own hosted service. That is still their cloud.
Deploy Documenso
Send a document for signature on a server you control.
Run it with Docker
A Dockerfile is in the repository. You still pay for a server.
Done for you by SeatLess
SeatLess installs this and hands the system over. Price is quoted per project. This does not pin the app above higher scores.