Airgap Package Fetcher

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Status: Planning — This page describes intended capabilities and MVP scope.

Airgap Package Fetcher is a CLI for environments without internet. It runs on a connected host to fetch packages and their complete dependency trees for pip, apt, Docker, and Homebrew, producing portable, verifiable bundles for offline installation.

Key Capabilities

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• Offline-first: bundles install with zero network access
• Multi-ecosystem: pip, apt, Docker images, Homebrew (Pro adds Go, Rust, NPM, VSCode, and more)
• Integrity: SHA256/SHA512 checksums, optional signatures
• Consistent UX: validate, info, install commands and cross-platform scripts
• Single binary: static Go build, no external runtime

Free Tier Utility Features (MVP)

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• Checksum manifest generation (SHA256/SHA512)
• Offline validator: airgap validate ./bundle/
• Cross-platform install scripts: install.sh and install.ps1
• Metadata viewer: airgap info ./bundle/
• Offline README per bundle with install steps and version info

Usage

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Connected system (fetch):

airgap fetch pip requests==2.31.0 -o ./bundle-requests/
airgap fetch apt curl jq -o ./bundle-utils/
airgap fetch docker alpine:3.20 -o ./bundle-alpine/
airgap fetch brew jq -o ./bundle-homebrew/

Airgapped system (install):

airgap validate ./bundle-requests/
airgap install ./bundle-requests/

Supported Ecosystems

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• Free: pip, apt, Docker images, Homebrew
• Pro (post-MVP candidates): Go modules, Rust crates, NPM, VSCode extensions, SDK fetchers, Flatpak/Snap/AppImage, winget, GitHub CLI tools, shell plugin managers