Hosting presets on the wiki for use in JOSM and other map editors

I am developing a wiki project that will contain custom presets that will be developed by the community through the wiki process. How easy is it to produce presets that JOSM can use from wiki pages? Is it possible to make these presets available to other editors either by picking up the files or by cutting and pasting?

JOSM has an xml file that it reads the presets from.

However you probably won’t get custom presets added, however you might be able to convince them to make an extension to download a custom prefix from a URL.

The development version of JOSM allows you to load external presets.