This looks neat! The on-call use case is particularly compelling for me. Does your recording method work in SSH sessions?
Currently, savvy doesn't record commands in an ssh session.
For now, you can install Savvy's CLI (curl -fsSL https://install.getsavvy.so | sh) into the machine you've sshed into and then run savvy record history. You can do this after the issue is over.
If you share more details about your set up I may be able to suggest other workarounds to get you set up. Feel free to email me at shantanu@getsavvy.so