I expect it makes a big difference what kind of work one does. For me, working with a legacy codebase for firmware, with 1000s of lines of C in each module, AI is very slow (~5-10s response time) and almost none of the code is acceptable.
I do however find it useful for getting an overview of dense chunks of confusing code.
I came across an old graphics project I'd made for Windows/DOS around 20 years ago. Within about a half hour I was able to compile and run it on a Linux machine with Wine, installing the latest version of the compiler and dependencies.
I can rarely get a 6-month-old JavaScript web project to compile and run this easily. Churn in node versions, npm/yarn versions, dependencies being abandoned, superseded, dropping backwards compatibility.
I don't have your use-case, but I use the `.ssh/config` to give aliases (Host/Hostname) to my remote machines and can set the identity to use there (IdentityFile).
(and no, I don't find LLMs much use on this)