Omake

Omake is a Japanese term, commonly used by magazines and art books to denote "bonus" or "extra" material.

Rubenerd employed the term for his omake.xml and earlier omake.opml files. These used XML formats, and XSLT to render them. Browser vendors have signaled they'll likely retire XSLT, probably because its too open, extensible, cross platform, and useful for the modern Web. Other browsers, such as Firefox for Android, never supported it.

As such, Ruben begrudgingly retired it in February 2026. Much of the material has since been imported onto this wiki. It may be a blessing in disguise; wikis are more flexible than a simple collapsible outline, and supports inline images and tabular data. He'll still miss it, though.

What about ruben.coffee?

Same story, unfortunately. It lives on in the coffee category.

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See also

• Ruben's blog
• Jon Bosak, the xml:Father