Also, this game, published in this decade, is unsigned. Why? How?

(yes it’s ad-hoc signed but it’s functionally the same thing)

Terminal output: $ codesign -dvvv /Users/rasmus/Library/Application\ Support/Steam/SteamApps/common/Snufkin\ -\ Melody\ of\ Moominvalley/Snufkin.app/&10;Executable=/Users/rasmus/Library/Application Support/Steam/SteamApps/common/Snufkin - Melody of Moominvalley/Snufkin.app/Contents/MacOS/Snufkin - Melody of Moominvalley&10;Identifier=com.rawfury.snufkin&10;Format=app bundle with Mach-O universal (x86_64 arm64)&10;CodeDirectory v=20400 size=492 flags=0x2(adhoc) hashes=9+3 location=embedded&10;Hash type=sha256 size=32&10;CandidateCDHash sha256=b24bbd4a54fedacd26f8d0e986c64c1b0cddb572&10;CandidateCDHashFull sha256=b24bbd4a54fedacd26f8d0e986c64c1b0cddb572acacd740b66ed88bfbeaecca&10;Hash choices=sha256&10;CMSDigest=b24bbd4a54fedacd26f8d0e986c64c1b0cddb572acacd740b66ed88bfbeaecca&10;CMSDigestType=2&10;CDHash=b24bbd4a54fedacd26f8d0e986c64c1b0cddb572&10;Signature=adhoc&10;Info.plist entries=19&10;TeamIdentifier=not set&10;Sealed Resources version=2 rules=13 files=344&10;Internal requirements count=0 size=12