Be aware that custom CSS might be overwriten when updating.
There is no official Spiceworks importer, so it’s only possible by scripting and using the API.
Adding a computer name to a ticket is impossible because it is never send to the server in the first place.
Adding an IP address is technically possible, but the demand for it would be pretty low. An IP address might be used by thousands. There is no Session endpoint in the API. So the only way to do this is making a custom IP field, create a webhook trigger on ticket creation, create a script that responds to the trigger, parse the Nginx logs and extract the IP, and finally set the custom IP field of the ticket via the API.
There are many things that can go wrong here. I wouldn’t try it.
