Release contract

This is the static file layout that the current shell installer and pafio prebuilt tool installer consume.

Release-root metadata

release-index.json
release-root.json
tools/...

release-index.json is the stable public index for the hosted service. release-root.json is generated inside each release-root bundle and records the deployment snapshot id, for example release-root-2026.05.09.1.

pafio installer paths

tools/pafio/install-pafio.sh
tools/pafio/channel/latest/<platform>/version
tools/pafio/releases/<version>/<platform>/pafio
tools/pafio/releases/<version>/<platform>/pafio.sha256
tools/pafio/latest.json

Styio compiler paths

tools/<release-target>/channel/stable/<platform>/version
tools/<release-target>/releases/<version>/<platform>/styio
tools/<release-target>/releases/<version>/<platform>/styio.sha256
tools/<release-target>/latest.json

Release targets

Target	Purpose	Initial status
`styio-linux`	Linux CLI, including glibc and musl platform keys.	arm64 and x86_64 alpha
`styio-macos-cli`	macOS command-line compiler.	Apple Silicon alpha
`styio-macos-desktop-gui`	Future macOS desktop application.	reserved
`styio-windows-cli`	Windows command-line compiler.	x86_64 alpha
`styio-windows-desktop-gui`	Future Windows desktop application.	reserved
`styio-ios`	Future iOS client package.	reserved
`styio-android`	Future Android client package.	reserved

Validation rules

Every channel pointer is a text file whose first field is a safe version segment.
Every binary has a sibling .sha256 text file.
Alpha CLI platform keys use darwin-aarch64, linux-aarch64, linux-x86_64, linux-musl-aarch64, linux-musl-x86_64, or windows-x86_64.
Release-root bundles are extracted into the Pages artifact, not committed to Git.
New release-root bundles include release-root.json metadata.