I had to automate a Fiery controller on a Konica Minolta network printer about 20 years ago. It was running vxworks. I used expect. I've automated certificate

I had to automate a Fiery controller on a Konica Minolta network printer about 20 years ago. It was running vxworks. I used expect. I've automated certificate upgrades on everything from dodgy network appliances to IBM System i servers. I've used everything from headless browsers to scripted 5250 terminal emulators. Generally, if you have the will, you can automate anything that you do manually. The solutions are often janky, but they can usually be verified easily by other tools (curl output can be parsed to verify cert details).