How we verify greenshot doors

Shutter Quill verifies greenshot install doors against primary sources. GitHub Releases must show the Windows RELEASE.exe on a non-prerelease tag. The winget package id must resolve in microsoft/winget-pkgs. Homebrew is recorded as NONE when no cask exists.

We skip UNSTABLE and UNSIGNED assets for stranger-safe guidance. Versions come from the live fetch at build time, not typed footers. Corrections welcome via contact.