New NixOS config

This is my new NixOS config for dev, and everything else. Using flakes and home-manager.

Screenshots:

Dev environments

To configure whatever environment, you can use this command: nix flake init --template github:the-nix-way/dev-templates#java

Look at the-nix-way/dev-templates

To implement

[ ] Sleep at 15 mins [ ] Suspend at 1 hr

Bugs

See if an opened window class can stay there? Like opening steam and moving to another window