Executor was originally developed to run Mac programs on the NextStep platform  and other MC680x0-based Unix systems like SunStation.
ɛɡzˈɛkjuːɾɚ wʌz ɚɹˈɪdʒɪnəli dɪvˈɛləpt tə ɹˈʌn mˈæk pɹˈoʊɡɹæmz ɔnðə nˈɛkst stˈɛp plˈætfɔːɹm ænd ˈʌðɚɹ ˌɛmsˈiː sˈɪkshˈʌndɹɪd ˈeɪɾi ˈɛks zˈiəɹoʊbˈeɪst jˈuːnɪks sˈɪstəmz lˈaɪk sˈʌn stˈeɪʃən.