add readme

README.MD

@@ -0,0 +1,32 @@
+# My Nix-Darwin Dotfiles
+
+My current nix dotfiles to managing package and customize (tweak) my macOS environment.
+
+So far, the dotfiles only used for my macOS configuration, maybe in the future I will add my NixOS VM setup, including both dev and prod environments in the future.
+
+## Core System
+
+- OS: macOS (nix-darwin)
+- Shell: nushell with oh-my-posh 
+- Terminal: ghostty with dracula theme
+- Package Management: mix of nix and homebrew 
+
+## Developer Tools
+
+- IDE: neovim (lazyvim bundle) & Helix
+- Containers: docker, lazydocker, orbstack
+- CLI utils: fzf, ripgrep, ast-grep, jq, yq, pandoc, ffmpeg, tree, htop
+- Tmux with dracula theme (plugins: cpu-usage, battery, network-bandwidth monitoring)
+- Per programming language using `nix develop` (still tweaking to see whats the best)
+
+## AI Tools
+
+- CLI-based tools: codex, crush, opencode, claude code
+- Custom z.ai gateway wrapper for claude code
+- Secret management with SOPS-nix
+
+## Todo List
+- [] Scale to NixOS desktop & VM dotfiles too
+- [] Easier setup for new machines or my another devices
+- [] Configure best development environment setup for me
+- [] Stop tweaking and finalize the dotfiles lol