Configure automatic login and encrypt your drive. Shows only "enter passphrase" and is actually secure instead of just a cosmetic password prompt.
Debian operating system
Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run. Debian provides more than a pure OS: it comes with over 59000 packages, precompiled software bundled up in a nice format for easy installation on your machine.
slight disagree. While encryption is very useful, it requires a full shutdown or hibernation to do what a normal "sleep" or "lock" would do. definitely not the most convenient setup. I'd say OP should just change his username to something else.
Hibernation does not take that long with a modern ssd. Convenience and security often don't go hand in hand. Locking the laptop usually is sufficient too for switching trains etc.
OP, you might want to just change your username.
I dont know of an easy, clean and elegant way of doing what you ask. I wonder what happens if you edit /etc/passwd with the new name, I wouldn't dare to try. The way I'd proceed though is to start a bare repo with my dotfiles, so if anything happens, I'm back in business with minimal configuration changes.
This is a video about bare git repo: https://www.youtube.com/watch?v=tBoLDpTWVOM&t=0
Stolen from this other video: https://www.youtube.com/watch?v=ApkoY-PN0Nk&t=0