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README.md

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+# Lime
+
+Lime is a clean, modern terminal text editor written in Rust.
+
+It aims to be approachable like Nano, efficient and clean like Vim, and easy to use like VS Code, while keeping a standard non-modal editing model.
+
+## Status
+
+This repository contains the first usable implementation:
+
+- Rust Cargo workspace
+- Rope-backed editor core
+- Cursor movement and editing
+- Undo/redo
+- Save and save-as
+- Unsaved-change prompts
+- Ratatui/Crossterm terminal UI
+- Status/help bars
+- Recursive file picker with `Ctrl-F`
+- Fuzzy file filtering
+- Large-file warning policy
+- Syntax highlighting for common languages with Tree-sitter/lexical fallback
+- Simple TOML config loading
+
+## Run
+
+```bash
+cargo run -p lime-cli -- path/to/file.rs
+```
+
+or after installing/building the binary:
+
+```bash
+lime path/to/file.rs
+lime .
+lime --force huge.log
+```
+
+## Keyboard shortcuts
+
+| Shortcut | Action |
+| --- | --- |
+| `Ctrl-S` | Save |
+| `Ctrl-Q` | Quit |
+| `Ctrl-F` | Open file picker |
+| `Ctrl-R` | Search current file |
+| `Ctrl-G` | Go to line |
+| `Ctrl-Z` | Undo |
+| `Ctrl-Y` | Redo |
+| `Ctrl-A` | Start of line |
+| `Ctrl-E` | End of line |
+| `Esc` | Close popup/cancel prompt |
+
+## Config
+
+Lime looks for config at:
+
+- macOS: `~/Library/Application Support/lime/config.toml`
+- Linux: `~/.config/lime/config.toml`
+
+Example:
+
+```toml
+theme = "lime-dark"
+tab_width = 4
+insert_spaces = true
+show_line_numbers = true
+confirm_large_files = true
+```
+
+## Development
+
+```bash
+cargo fmt
+cargo test
+```
+
+Workspace crates:
+
+- `lime-core`: pure editor model and editing operations
+- `lime-syntax`: language detection and highlighting
+- `lime-ui`: terminal UI, file picker, prompts, keybindings
+- `lime-cli`: binary entry point