Try Hypercard

This is an emulated Macintosh computer running HyperCard.

To get started, double click on "Hypercard", and select an option from the main menu. "HyperCard Tour" and "HyperCard Help" should help you get started.

A hack by @ur_friend_james.

NOTE: your browser is missing a required feature for this emulator (SharedArrayBuffer). There is an alternate version which should work for you here. Alternatively, you can update to Firefox 79.
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