a9s

Installation

Homebrew (macOS and Linux)

brew install k2m30/a9s/a9s

Scoop (Windows)

scoop bucket add a9s https://github.com/k2m30/scoop-a9s.git
scoop install a9s

Go install

go install github.com/k2m30/a9s/v3/cmd/a9s@latest

Download binary

Download the latest release for your platform from GitHub Releases.

Available platforms:

• macOS: Intel (amd64) and Apple Silicon (arm64)
• Linux: amd64 and arm64
• Windows: amd64 and arm64

Windows note: Downloaded binaries may trigger a Microsoft Defender SmartScreen warning because they are not code-signed. Click “More info” → “Run anyway” to proceed, or install via Scoop to avoid this. Windows support is new and has been verified via cross-compilation and CI only — the maintainer does not have a Windows machine. If you encounter any issues, please open an issue.

Docker

# Demo mode (no AWS credentials needed)
docker run --rm -it ghcr.io/k2m30/a9s:latest --demo

# Real AWS access
docker run --rm -it -v ~/.aws/config:/home/a9s/.aws/config:ro ghcr.io/k2m30/a9s:latest

Build from source

Requires Go 1.26+.

git clone https://github.com/k2m30/a9s.git
cd a9s
make build
./a9s

Quick Start

a9s uses the standard AWS credential chain. Any of these work:

• Environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)
• AWS config file (~/.aws/config) — a9s never reads ~/.aws/credentials
• EC2 instance metadata / ECS task role / SSO

a9s                       # use default profile
a9s -p production         # use a specific profile
a9s -r eu-west-1          # override region
a9s --version             # print version