Yes, agreed, this is nothing more than a cute toy, and not anywhere close to a full-blown productivity application. But it does show some fundamental API (and l

Yes, agreed, this is nothing more than a cute toy, and not anywhere close to a full-blown productivity application. But it does show some fundamental API (and language) stability, and especially with X11 in the mix I really had anticipated more problems. It's not even a particularly cherry-picked example. One day a few years ago, I suddenly remembered that cat, and went out to see if I can still find it. I tried to build it more just for kicks and remember being surprised when it not only "just built", but even "just ran", on my Mac, for which it wasn't even for. Yeah, something bigger will most likely push back more, especially as soon as more dependencies than just the C library itself and X11 come into play. Though overall my track record in building ancient C stuff with an acceptable amount of changes is pretty good!