My goal with most (but not all) of my content is that it should be compatible with every edition of D&D.
My content can be broadly seperated into three categories:
the two editions of DiceDream, my home system -- which can run any D&D module from any editionrules variants classes
I have organized my content into that respective order
"Common Rituals" is written by Remedy, but published by me. Because they satisfy this restriction, they also end up being compatible with many many other games that are similar to one or another edition of D&D.