I can understand wanting to write a program on an obsolete machine just to say you did it, but there probably aren't a lot of Lisas left out there and of those most of them probably don't get much actual runtime anymore. Is it worth it to write a new program from scratch for a Lisa?? At least with an Apple II you know there is still a community large enough to appreciate your efforts. Lisa owners who actually use their machines rather than keep them for preservation or profit must be down to just a handful or so by now.