Shiori (Beta)

A lightweight, GPU-accelerated code editor built for the age of AI coding agents.

Why Shiori?

AI coding agents like Claude Code, Aider, and Codex are writing most of the code now. You spend less time typing and more time orchestrating — launching agents across terminals, reviewing diffs, and managing sessions.

Traditional editors ship megabytes of features you no longer need — IntelliSense, refactoring wizards, build system integrations — all consuming memory while your agents do the actual work.

Shiori takes the opposite approach: a fast, minimal editor where terminals are first-class citizens. Your RAM goes to the agents, not the editor.

Platform Support

Platform	Status
macOS	Beta
Windows	Coming soon
Linux	Coming soon

Features

• First-class terminals — Full PTY with ANSI rendering, 24-bit true color, mouse support, OSC 8 hyperlinks, and image display (Kitty protocol). Manage multiple sessions from a single window.
• Lightweight — Single binary, ~80 MB idle memory. Handles 750K+ line files with smooth scrolling while using less memory than other editors we tested against on the same workload.
• GPU-accelerated — Built on GPUI. Rendering stays smooth even under heavy terminal output.
• Git integration — Side-by-side and unified diff views, file staging, inline review comments, and commit UI built in.
• Syntax highlighting — Tree-sitter powered across 22 languages: Rust, JavaScript, TypeScript, Python, Go, C, C++, Java, Ruby, Bash, CSS, HTML, JSON, TOML, Markdown, YAML, Lua, Zig, Scala, PHP, OCaml, and SQL.
• LSP support — Optional completions, diagnostics, hover, and go-to-definition. Pre-configured for rust-analyzer, typescript-language-server, pyright, gopls, clangd, lua-language-server, and zls. Turn it on when you want it, off when agents are driving.
• Autocomplete — Tree-sitter symbol extraction with prefix filtering and anchor-positioned popup.
• File explorer — Tree view with git status indicators.
• Multi-tab editing — Tabbed files with 2-second debounced autosave.
• Find and replace — Regex-supported search within the current file.
• Theming — 6 built-in themes: Island Dark, Dracula, Nord, Monokai Vivid, GitHub Dark, Cyberpunk.

Performance

Tested against large files and high-throughput terminal workloads:

Metric	Result
Idle memory	~80 MB
750K line file	Smooth scrolling, stable memory
Terminal 100K line burst	Peak ~235 MB, returns to baseline within 30s
Terminal binary throughput (5 MB xxd)	Peak ~226 MB, returns to baseline
Scrollback	Capped with O(1) trimming via VecDeque
24-bit color	Semicolon and colon-separated SGR both supported

Install

macOS (DMG)

Download the latest .dmg from Releases. Open the DMG and drag Shiori to Applications.

To use shiori from the terminal:

sudo ln -sf /Applications/Shiori.app/Contents/MacOS/shiori /usr/local/bin/shiori

Build from source

Requires Rust nightly:

cargo +nightly build --release

The binary will be at target/release/shiori.

To create a macOS .app bundle:

bash macos/bundle.sh

Usage

shiori                      # Open in current directory
shiori path/to/folder       # Open a folder
shiori path/to/file.rs      # Open a file
shiori file1.rs file2.rs    # Open multiple files

Key bindings

Shortcut	Action
`Ctrl + ``	Toggle terminal
Cmd + T	New terminal tab
Cmd + P	Command palette
Cmd + B	Toggle sidebar
Cmd + S	Save file
Cmd + F	Find in file
Cmd + G	Toggle git panel
Cmd + Shift + O	Open folder
Cmd + Shift + K	Symbol outline

Architecture

Single-binary Rust application. All source in src/.

• GPUI (adabraka-gpui) — GPU-accelerated UI framework
• ropey — Rope-based text buffer for efficient large file handling
• tree-sitter — Syntax highlighting and symbol extraction
• portable-pty — Terminal PTY management
• git2 — Git operations via libgit2
• lsp-types — Language Server Protocol support

License

See LICENSE.