SimpliPlay on Windows XP
I had the genius idea to finally test SimpliPlay on Windows XP, and the results were... well, interesting.
First, I installed Windows XP on a UTM VM (using the official UTM template), then after that I tried to visit the SimpliPlay website. But none worked in XP, so I had to resort to using a Node.js HTTP server. After binding to 0.0.0.0 (normally wouldn't need to for VMs, but XP just hated me), I downloaded the ZIP, ran the app (the legacy build, the main one requires at least Windows 10), and succeeded!
Of course, what I really wanted was for it to play media. I tested an H.264 MP4 and forgot that the legacy build only supports royalty-free codecs like VP9, so then I tested WEBM files. And it worked! (though the decoding was very slow since it was on a VM, but I did give it 6GB RAM, I think XP used it to make itself lazy).
Even worse, when I edited the footage in iMovie, it didn't export and I couldn't restart my Mac. Thankfully, these were just one-off issues that were specific to that one project (others exported fine), and that one DVD that just didn't eject even when I removed my DVD drive (a macOS problem in general).
So I had to export the audio (which worked perfectly), and screen recorded the footage in my iMovie editor, merged audio and video with FFmpeg (no re-encoding), and done!