Mac storage, the way iPhone Photos does it — files you don't use move to your cloud or an external drive, and a shortcut stays where the file was.
→ https://coldarchive.deepon.kr/
ColdArchive moves a file and leaves a symlink. Alongside the files it writes
RESTORE-ME.command — a 187-line POSIX sh script that puts everything back.
It needs sh and mv. Not this app, not the internet, not even the Mac you started on.
It is published so you can read it before trusting it, and so it keeps working if we don't.
Public domain — take it.
ColdArchive itself is a paid macOS app; its source is not published here.
Questions and bug reports: Issues