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It embeds Neovim, renders the editor with wgpu, and layers smooth motion on top — inspired by [4coder](https://4coder.net/)'s feel.\n\n```\n┌─────────────────────────────────────────────┐\n│  winit window  ·  wgpu renderer  ·  ImGui   │\n├─────────────────────────────────────────────┤\n│  editor-surface  (glyphs, animations, VFX)  │\n├─────────────────────────────────────────────┤\n│  nvim-core  (RPC session, grid state, input)│\n├─────────────────────────────────────────────┤\n│  Neovim (--embed)                           │\n└─────────────────────────────────────────────┘\n```\n\n## Features\n\n- **Embedded Neovim** — spawns `nvim --embed` and speaks the UI protocol over RPC\n- **GPU text rendering** — glyph atlas, syntax highlighting, multi-grid floats and splits\n- **Smooth animations** — interpolated cursor, scroll springs, highlight flashes, float fade/slide\n- **Cursor effects** — glow, trails, squash/stretch, and optional power-mode particles\n- **Cursor VFX** — `sonicboom`, `railgun`, `torpedo`, `pixiedust` cursor modes\n- **Live settings** — in-app panel with hot-reload from disk\n\n## Requirements\n\n- [Rust](https://rustup.rs/) (2021 edition)\n- [Neovim](https://neovim.io/) on your `PATH` (used via `--embed`)\n- A monospace font; Nerd Font glyphs are supported for icons\n\nmacOS is the primary target today, but the editor runs on other platforms too.\n\n## Build \u0026 run\n\n```bash\ncargo build --release\n./target/release/neobeam\n```\n\nOn first launch, a default config is written to:\n\n```\n~/.config/neobeam/settings.json\n```\n\nEdit that file while the app is running — changes reload automatically when the settings panel is closed.\n\n## Settings\n\nOpen the in-app settings panel with **⌘,** (Cmd+Comma). Press **Esc** to cancel, or **Apply** to save.\n\n| Setting | Description |\n|---|---|\n| `font_family` | Monospace family name, or `null` for system default |\n| `font_size` | Cell height in pixels |\n| `line_height` | Line spacing multiplier |\n| `animations_enabled` | Master toggle for all motion |\n| `power_mode` | Screen shake and typing particles |\n| `cursor_glow` | Bloom around the cursor (0 = off) |\n| `scroll_animation_length` | Smooth-scroll duration in seconds |\n| `vfx_modes` | Comma-separated cursor VFX, e.g. `railgun,sonicboom` |\n\n## Project layout\n\n| Crate | Role |\n|---|---|\n| [`crates/neobeam`](crates/neobeam) | Binary (`neobeam`): window loop, input, settings UI |\n| [`crates/nvim-core`](crates/nvim-core) | Neovim session, protocol parsing, grid/window state |\n| [`crates/editor-surface`](crates/editor-surface) | wgpu renderer, fonts, animation engine, cursor VFX |\n\n`nvim-core` is deliberately windowing- and GPU-agnostic so protocol and grid logic can be tested without a display.\n\n## Development\n\n```bash\n# Run tests (spawns real nvim processes for integration tests)\ncargo test\n\n# Verbose logging (`cargo run` stays attached to the terminal)\nRUST_LOG=neobeam=debug cargo run -p neobeam\n\n# Release binary detaches from the shell by default; keep the terminal for logs:\nRUST_LOG=neobeam=debug ./target/release/neobeam --foreground\n```\n\n## Credits\n\n- **[4coder](https://4coder.net/)** and Ryan Fleury — the original inspiration for smooth, frame-delta editor animations (cursor interpolation, trails, glow, power mode).\n- **[Dear ImGui](https://github.com/ocornut/imgui)** — settings panel overlay.\n- **[wgpu](https://wgpu.rs/)** — cross-platform GPU rendering.\n\n## License\n\nMIT\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Famirrezaask%2Fneobeam","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Famirrezaask%2Fneobeam","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Famirrezaask%2Fneobeam/lists"}