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Antigravity

1. Installing Google Antigravity 2.0 (Desktop App)

To install Google Antigravity 2.0 (the desktop application) on your Ubuntu 24.04 LTS (x86_64) machine, follow these steps:

  • Step 1: Download the Linux x64 Archive
    The official build is distributed as a .tar.gz archive from https://antigravity.google/download. Run the following command to download the latest release:

    curl -fSL “https://storage.googleapis.com/antigravity-public/antigravity-hub/2.12.2-6298742303883264/linux-x64/Antigravity.tar.gz” -o /tmp/Antigravity.tar.gz

  • Step 2: Extract and Install

    You can install it either locally for your user account (recommended, no sudo needed) or system- wide.

    Recommended: User-Level Install (~/.local/)

    # 1. Create installation directory 
mkdir -p ~/.local/share/antigravity                                                           
# 2. Extract into the target directory
tar -xzf /tmp/Antigravity.tar.gz -C ~/.local/share/antigravity --strip-components=1   
  
# 3. Create a symlink to ~/.local/bin (already in your PATH)                       
ln -sf ~/.local/share/antigravity/antigravity ~/.local/bin/antigravity                        
# 4. Clean up archive                                                             
rm /tmp/Antigravity.tar.gz

  • Step 3: Add Desktop Launcher (Ubuntu App Menu)

    To launch Antigravity from Ubuntu’s application dashboard / search:

    cat << 'EOF' > ~/.local/share/applications/antigravity.desktop 
[Desktop Entry]
Name=Google Antigravity 2.0
Comment=Google Antigravity Desktop Orchestrator
Exec=/home/ojitha/.local/share/antigravity/antigravity %U
Terminal=false
Type=Application
Categories=Development;IDE;
StartupWMClass=Antigravity
EOF

    Update your desktop database:

    update-desktop-database ~/.local/share/applications

  • To run in command line

    antigravity &
// to kill
pkill antigravity || true

This guide covers installing, updating, and connecting Google Antigravity 2.0 (Desktop Orchestrator) and the standalone Antigravity IDE.

2. Updating Google Antigravity 2.0

Option A: In-App (Automatic)

  1. Open Google Antigravity 2.0.
  2. Click Settings (gear icon in the bottom-left sidebar).
  3. Under App Settings, make sure Auto-check for updates is enabled.
  4. When a new version is detected, click Update / Replace and restart the app.

Option B: Terminal (Manual Overwrite)

pkill antigravity || true
curl -fSL "https://storage.googleapis.com/antigravity-public/antigravity-hub/2.12.2-6298742303883264/linux-x64/Antigravity.tar.gz" -o /tmp/Antigravity.tar.gz
tar -xzf /tmp/Antigravity.tar.gz -C ~/.local/share/antigravity --strip-components=1
rm /tmp/Antigravity.tar.gz

(To update the Antigravity CLI tool, simply run agy update.)

3. Installing Antigravity IDE

To install the full AI-native code editor (built on VS Code):

# 1. Download Antigravity IDE (Linux x64)
curl -fSL "https://edgedl.me.gvt1.com/edgedl/release2/j0qc3/antigravity/stable/2.5.5-4923483625488384/linux-x64/Antigravity%20IDE.tar.gz" -o /tmp/antigravity-ide.tar.gz

# 2. Create the target directory and extract
mkdir -p ~/.local/share/antigravity-ide
tar -xzf /tmp/antigravity-ide.tar.gz -C ~/.local/share/antigravity-ide --strip-components=1

# 3. Create a symlink to ~/.local/bin
ln -sf ~/.local/share/antigravity-ide/bin/antigravity-ide ~/.local/bin/antigravity-ide

# 4. Add desktop application shortcut
cat << 'EOF' > ~/.local/share/applications/antigravity-ide.desktop
[Desktop Entry]
Name=Google Antigravity IDE
Comment=AI-First Code Editor
Exec=/home/ojitha/.local/share/antigravity-ide/bin/antigravity-ide %F
Icon=/home/ojitha/.local/share/antigravity-ide/resources/app/resources/linux/code.png
Terminal=false
Type=Application
Categories=Development;IDE;
StartupWMClass=Antigravity IDE
EOF

# 5. Update desktop database & clean up
update-desktop-database ~/.local/share/applications
rm /tmp/antigravity-ide.tar.gz

Launch it directly with:

antigravity-ide &

4. Accessing the IDE from Antigravity 2.0

  1. Open Google Antigravity 2.0.
  2. Click the Projects icon (folder with a +) in the left sidebar to create or select a project.
  3. Click the Open in IDE / Open in Editor button in the project header (or press Ctrl+P and type Open in Editor).
  4. To configure your editor preference:
    • Go to Settings → Preferences → Default Editor.
    • Select Antigravity IDE (or your preferred editor).

5. Alternative: Using Existing VS Code

If you prefer to continue using your existing VS Code installation (/snap/bin/code):

  1. Open VS Code: code
  2. Open the Extensions sidebar (Ctrl+Shift+X).
  3. Search for and install the official Google Antigravity extension.
  4. In Antigravity 2.0 under Settings → Preferences, set the default editor to VS Code.

Lemonade

Lemonade Server installation

Lemonade server was installed via a Debian package (.deb).

Install method: dpkg / .deb package

  • Package: lemonade-server version 10.0.0 (amd64)
  • Source .deb file: /home/ojitha/Downloads/lemonade-server_10.0.0_amd64.deb
  • Binaries installed to: /usr/bin/lemonade-server, /usr/bin/lemonade-web-app
  • Also in: /opt/bin/ (lemonade-router, lemonade-server, lemonade-web-app)
  • Config: /etc/lemonade/lemonade.conf and secrets.conf
  • Systemd service: /usr/lib/systemd/system/lemonade-server.service
  • VS Code extension: lemonade-sdk.lemonade-sdk-0.0.7 also installed

To reinstall or upgrade, you can run: sudo dpkg -i
/home/ojitha/Downloads/lemonade-server_10.0.0_amd64.deb

Install FLM models in Lemonde Server

The model location for the Lemonade server is export HF_HOME=/opt/var/lib/lemonade/.cache/huggingface'

Check what FLM itself knows

flm list

Pull via FLM directly, example gemma3:4b:

flm pull gemma3:4b

Then register it with lemonade under the user namespace

lemonade-server pull user.Gemma3-4b-it-FLM \
  --checkpoint gemma3:4b \
  --recipe flm

The --checkpoint value should match whatever flm list shows as the model identifier (likely gemma3:4b based on the upstream registry metadata).

Verify FLM is actually present:

which flm
flm --version

The default location for the FLM models are ~/.config/flm/models/.

Ollama

Here is my current Ollama models:

ollama ls

image-20260523111937157

Ollama ROCm Setup on OJAI Machine

Hardware

Component Detail
Machine MINISFORUM AI X1 Pro Mini PC
CPU AMD Ryzen AI 9 HX 470 (Zen5, 12-core)
iGPU AMD Radeon 890M (gfx1150, RDNA 3.5)
NPU 86 TOPS (aie2p / RyzenAI-npu4)
OS Ubuntu 24.04.4
Kernel 6.17.0-1012-oem
ROCm 7.2.0
MIGraphX 2.15.0.dev+20250912

Problem 1 — Ollama Server Already Running

Attempting to start Ollama failed because port 11434 was already bound:

Error: listen tcp 127.0.0.1:11434: bind: address already in use

Note: ollama stop stops a model, not the server daemon — it requires a model name argument.

Fix

sudo fuser -k 11434/tcp

Problem 2 — Ollama Not Detecting ROCm / GPU

Running the debug check returned no output:

OLLAMA_DEBUG=1 ollama serve 2>&1 | grep -i "gpu\|rocm\|gfx"

This indicated Ollama was not recognising the gfx1150 GPU — it is too new for Ollama’s bundled ROCm to detect by default.

Fix — Override GFX Version

HSA_OVERRIDE_GFX_VERSION=11.5.0 ollama serve &

To make permanent via systemd

sudo systemctl edit ollama

Add:

[Service]
Environment="HSA_OVERRIDE_GFX_VERSION=11.5.0"

Then reload:

sudo systemctl daemon-reload && sudo systemctl restart ollama

Verification

GPU utilisation confirmed at 98% via rocm-smi --showuse:

GPU[0] : GPU use (%): 98

Ollama is fully offloading inference to the Radeon 890M via ROCm. ✅

Models Available

Model Size
gemma4:26b 17 GB
gemma4:e4b 9.6 GB

gemma4:31b (19 GB) was removed with ollama rm gemma4:31b.