I don’t travel well (except inside my own head). All of my writing is done sitting at my desk in front of a 2020 vintage iMac with a 27″ screen. The large screen allows me to use large fonts so I can still write even with the blurred vision and negative scotomata that are facts of life for me.
I type using a Kinesis Freestyle 2 Mac split keyboard and sit on an extremely decayed Aeron chair.
For writing software I use Scrivener, which is excellent for my pantser-style writing process. I don’t write character sketches. I keep files of quotes that I imagine characters saying and build the scenes where these quotes would be said.
I also use LibreOffice, especially for final formatting. In a few cases I’ve used Sigil, a free ebook editing application, to tweak an existing ebook.
As I said, I’m a pantser, not a planner. I was the kind of schoolkid who wrote the essay first and then wrote the outline because the assignment demanded it, not because it was going to help me write. Writing for me is largely a subconscious process where I have to fold away my thinking brain and connect my messy back-brain to my fingers and let the ideas flow out.
I have a cat who tries to help me write but isn’t all that good at it. She is very furry, though.