Homebrew Tap for Cactus

Cactus is an energy-efficient AI inference engine for running LLMs on consumer devices.

Install

brew install cactus-compute/cactus/cactus

Usage

cactus download LiquidAI/LFM2-1.2B
cactus run LiquidAI/LFM2-1.2B

cactus download UsefulSensors/moonshine-base
cactus transcribe                      # Live microphone
cactus transcribe --file audio.wav     # From file

# See all commands
cactus --help

Supported Models

Model	Size	Type
LiquidAI/LFM2-1.2B	~500MB	Chat
LiquidAI/LFM2-350M	~150MB	Chat
google/gemma-3-1b-it	~500MB	Chat
UsefulSensors/moonshine-base	~100MB	Speech

For the full list see the Cactus README.

Releasing a New Version

Releases are automated via GitHub Actions in the cactus repo. The workflow runs weekly (Mondays) and can also be triggered manually. It auto-increments the version tag (v1.7, v1.8, ...), creates a GitHub release, and updates this formula automatically.

Manual release (from the cactus repo)

Go to Actions → Release & Update Homebrew → Run workflow. Optionally specify a version tag, or leave blank to auto-increment.

Manual formula update (without the workflow)

# 1. Tag the cactus repo
cd /path/to/cactus
git tag dev
git push origin dev

# 2. Get SHA256 and update the formula
curl -sL https://github.com/cactus-compute/cactus/archive/refs/tags/v1.7-dev.tar.gz | shasum -a 256

# Edit Formula/cactus.rb — update the url and sha256 fields

cd /path/to/homebrew-cactus
git add . && git commit -m "Update cactus" && git push origin main

Uninstalling

brew uninstall cactus && brew untap cactus-compute/cactus