Photoshop used to run on Windows 3.1. And Windows 3.1 runs great under both DOSBox and QEMU, both of which are Open Source emulators available for Android and every other platform under the sun.
So I promptly set to work digging up an old copy of Photoshop. The last version released for Windows 3.1 was back in 1996. And finding a working copy proved to be...challenging. Luckily, the good folks at Adobe dug around in their vaults and managed to get me up and running.
And, after a bit of tweaking, I ended up with an astoundingly functional copy of Photoshop that I can now run on absolutely every device I own. And the entire environment (fonts, working files and all) are automatically backed up to the cloud and synced between systems.
But what other applications (and, potentially, games) does this give me access to? How far can I take this?