The custodian of the Museum of ZZT, Dr. Dos, just spent over 170 dollars to secure a set of ZZT floppies, potentially containing not-yet-preserved initial releases of its registered worlds! If that's something you care about, please consider pledging support for his writing, streams and programming on the Museum of ZZT Patreon:
https://www.patreon.com/c/worldsofzzt
The ZZT community means a lot to me, so I will be grateful if you support his efforts at keeping it going.