@jpegxl Will #jpegXL need additional metadata when used with HTML's srcset?
While the format's progressive rendering can do away with the need to have different files per resolution, browsers will instead need to know how much of the image they'll fetch. How would we pass that information to the browser?
Extra syntax in srcset, eg p.jxl, p.jxl \<2040 100w, p.jxl \<6974 200w to tell that for a 100px wide view the browser needs to load the first 2040 bytes? Fragment identifier tricks?

"A nerd-rock piece of cover music that sings the praise of the new JPEG-XL (aka JXL) image format."

Finally, the missing puzzle piece before world takeover.

Are there any galleries or file managers that support jpeg xl?

So far I only found https://github.com/oupson/jxlviewer

A small list I gathered of software that is yet to support jxl.

A lot of technical discussion happening in the comments here: https://lemmy.world/post/2059816