- Add nixos/ directory with declarative flake.nix and home.nix for NixOS
- Make all setup scripts NixOS-aware with proper detection and early exit
- Update bashrc, zshrc, and aliases with Go, Ruby on Rails, and Nix profile paths
- Replace Rust/Cargo references in shell configs with rbenv/Ruby on Rails
- Update README with NixOS quick start and full documentation
Add comprehensive aliases for k8s, terraform, AWS, Docker and networking
in both bash and zsh. Update avante.nvim config (max_tokens=32000,
behaviour settings). Update README to reflect new packages.
