HP-42S calculator simulator
To manually install Free42 Binary with Homebrew, use the following command:
Current version of Free42 Binary.app: 3.2.3
ARM: https://thomasokken.com/free42/download/Free42Mac.zip
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Intel: https://thomasokken.com/free42/download/Free42Mac.zip
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Website: https://thomasokken.com/free42/