Antigravity Installer

Small installer for Google Antigravity on Linux x64. It reads the current official download page, resolves the latest Linux x64 tarballs, and installs one or both products:

• app: Antigravity 2.0 desktop app
• ide: Antigravity IDE

This script was created because the legacy APT package named antigravity can lag behind the new Antigravity 2.0 product split and can conflict with the new antigravity command.

See also INSTALLATION.md for the redacted OS, runtime, version, and install state captured during setup, INSTALL_NOTES.md for the installation narrative and troubleshooting history, and KNOWN_ISSUES.md for current Linux-specific issues and workarounds.

Current Machine Layout

On this machine, the preferred installation is system-wide:

• Antigravity app: /opt/antigravity/Antigravity-x64
• Antigravity IDE: /opt/antigravity-ide/Antigravity-IDE
• Command wrappers: /usr/local/bin/antigravity, /usr/local/bin/antigravity-ide
• Desktop entries: /usr/share/applications/antigravity.desktop, /usr/share/applications/antigravity-ide.desktop
• Icons: /usr/share/icons/hicolor/512x512/apps/

The installer also sets Electron chrome-sandbox to root-owned 4755 during system install. Command wrappers launch with --ozone-platform=x11 to avoid GNOME Wayland/Vulkan startup issues observed on Ubuntu 24.04. The IDE wrapper calls the official bin/antigravity-ide CLI so antigravity-ide . returns control to the terminal after handing the request to the IDE.

Requirements

• Ubuntu or another glibc-based Linux distribution
• x86_64 CPU
• Python 3.10+
• Network access to https://antigravity.google/download
• sudo for system-wide install

Usage

Install both the IDE and the Antigravity 2.0 app system-wide:

cd ~/antigravity-installer
sudo env ANTIGRAVITY_INSTALL_MODE=system ./install.py ide app

Install only the IDE:

sudo env ANTIGRAVITY_INSTALL_MODE=system ./install.py ide

Install only the Antigravity 2.0 app:

sudo env ANTIGRAVITY_INSTALL_MODE=system ./install.py app

User-local install is also supported when sudo is unavailable:

cd ~/antigravity-installer
./install.py ide app

User-local install writes to:

• ~/.local/opt/antigravity*
• ~/.local/bin/antigravity*
• ~/.local/share/applications/
• ~/.local/share/icons/

Make sure ~/.local/bin appears before /usr/bin in PATH if a legacy APT package is still installed.

Updating

Run the same install command again. The installer downloads the current official tarball and replaces the install root atomically enough for normal desktop use:

cd ~/antigravity-installer
sudo env ANTIGRAVITY_INSTALL_MODE=system ./install.py ide app

To update only the IDE:

sudo env ANTIGRAVITY_INSTALL_MODE=system ./install.py ide

If the releases page shows a newer IDE version but the download page still points to an older Linux tarball, override the IDE tarball URL explicitly:

sudo env ANTIGRAVITY_INSTALL_MODE=system ANTIGRAVITY_IDE_URL='https://edgedl.me.gvt1.com/edgedl/release2/j0qc3/antigravity/stable/2.0.4-6381998290370560/linux-x64/Antigravity%20IDE.tar.gz' ./install.py ide

To update only the Antigravity 2.0 app:

sudo env ANTIGRAVITY_INSTALL_MODE=system ./install.py app

When replacing an existing install, the previous install root is moved to a .previous sibling, for example:

• /opt/antigravity.previous
• /opt/antigravity-ide.previous

After confirming the new version works, remove old install roots if desired:

sudo rm -rf /opt/antigravity.previous /opt/antigravity-ide.previous

For a single-product update, remove only the matching old root:

sudo rm -rf /opt/antigravity.previous
sudo rm -rf /opt/antigravity-ide.previous

Verify

Check command wrappers:

which antigravity
which antigravity-ide
ls -l /usr/local/bin/antigravity /usr/local/bin/antigravity-ide
head -5 /usr/local/bin/antigravity /usr/local/bin/antigravity-ide

Check sandbox permissions:

ls -l /opt/antigravity/Antigravity-x64/chrome-sandbox
ls -l /opt/antigravity-ide/Antigravity-IDE/chrome-sandbox

Expected mode for system install is -rwsr-xr-x with owner root root.

Launch from terminal:

antigravity
antigravity-ide

For foreground debugging logs:

ANTIGRAVITY_FOREGROUND=1 antigravity --enable-logging=stderr --v=0

User Data and Backups

The installer does not delete user data. Existing settings, sessions, browser profile data, and migration state may live under paths such as:

• ~/.config/Antigravity
• ~/.cache/antigravity
• ~/.gemini/antigravity
• ~/.gemini/antigravity-cli
• ~/.gemini/antigravity-browser-profile
• ~/.antigravity-ide

Before the first install on this machine, a backup was created at:

<HOME>/antigravity-backups/antigravity-userdata-<BACKUP_TIMESTAMP>.tar.gz

Keep that backup until old conversations, projects, browser allowlists, auth state, and IDE settings are confirmed in the new versions.

Legacy APT Package

The legacy package can be checked with:

apt-cache policy antigravity

If it is installed and you plan to use the new Antigravity 2.0 app as antigravity, remove the legacy package without purging user data:

sudo apt remove antigravity

Avoid purge unless you have reviewed what package-owned config files it would remove.

Uninstall

System-wide uninstall of files created by this installer:

sudo rm -rf /opt/antigravity /opt/antigravity.previous \
  /opt/antigravity-ide /opt/antigravity-ide.previous \
  /usr/local/bin/antigravity /usr/local/bin/antigravity-ide \
  /usr/share/applications/antigravity.desktop \
  /usr/share/applications/antigravity-ide.desktop \
  /usr/share/icons/hicolor/512x512/apps/antigravity.png \
  /usr/share/icons/hicolor/512x512/apps/antigravity-ide.png

This does not remove user data under ~/.config, ~/.cache, ~/.gemini, or ~/.antigravity-ide.