winget install --id=Kuddev.Nebula -e Nebula is a terminal emulator for Windows, built in Rust on a GPU-accelerated rendering core and designed around one idea: your terminal sessions are too valuable to die with a window. It pairs a tmux-style resident session model with a glass UI, an AI-CLI-aware sidebar, and a shell experience that works without extra setup.
A GPU-accelerated terminal, SSH workspace, and home for your AI CLI sessions.
Built with Rust and GPUI for Windows, macOS, and Linux. Split terminals · SSH & SFTP · Claude Code & Codex workflows · Native document reader
English · 简体中文
Pebrel (formerly Nebula) brings local shells, remote hosts, files, and AI command-line tools into a native desktop workspace. Arrange terminals in tabs and splits, follow each agent's activity, and read its output without leaving the application.
More screenshots
Choose a package from the latest release.
| System | Architecture | Packages |
|---|---|---|
| Windows 10 1809+ / 11 | x64 | Installer .exe, portable .zip |
| Linux, glibc 2.35+ | x64 | .AppImage, .deb, portable .tar.gz |
| macOS, deployment target 14+ | Apple Silicon / arm64 | .dmg |
| macOS, deployment target 14+ | Intel / x64 | .dmg |
Package names follow Pebrel-v--. Windows installers
end in -setup.exe. A legacy-named installer is also supplied for older automatic
update clients.
On Windows, run the installer or extract the ZIP and launch pebrel.exe, keeping
the bundled directories together. On Linux, install the DEB or make the AppImage
executable. On macOS, open the matching DMG and drag Pebrel into Applications.
Ad-hoc-signed macOS builds may require Open Anyway in System Settings >
Privacy & Security on first launch. Native macOS CI runs on macOS 15; the
deployment target alone does not establish validation on every older OS version.
Windows currently also provides tray residency, the global quick-terminal hotkey, automatic local AI-hook setup, and automatic update installation. These integrations are not yet available on Linux or macOS. See installation details for platform requirements and upgrading an existing Nebula installation.
pebrel config init --language en-US
pebrel config check
The generated Lua configuration uses require 'pebrel' and
pebrel.config_builder(). Invalid reloads retain the last valid configuration.
See the Lua configuration guide for settings and examples.
With the pinned Rust toolchain and the platform dependencies installed:
cargo build --release --locked -p nebula --bin pebrel --features gpui-shell
The internal Cargo package is still named nebula; the application and command
are pebrel. GPUI is the product interface. The older renderer is available only
through the explicit legacy-shell feature.
Pebrel builds on Alacritty,
GPUI, and
gpui-component. Terminal text uses
Maple Mono, and native formulas use Latin Modern Math. Upstream copyright and
license notices are preserved in THIRD-PARTY-NOTICES and licenses/.