I know, it's 2026 and nobody uses XML, but I wanted to do this for the longest time. And now with my coding agents, I was able to bring this to reality:

A libxml2 like #XML toolkit for #Golang, but with newer specs implemented, such as XPath 3.1 and XSLT 3.0. Performance comparable, if not faster than libxml2.

I'm thinking of implementing xmlsec on top of it soon.

https://github.com/lestrrat-go/helium/releases/tag/v0.0.1

Release v0.0.1 · lestrrat-go/helium

Description This is the initial release. Things should be somewhat stable, but still do be careful. What's Changed Topic/stacked input by @lestrrat in #3 Remove github.com/pkg/errors by @lestrrat ...

GitHub

It's astonishing how people feel the need to tell me XML is still being used.

Uh, right. I would release an XML toolkit because it's an extinct technology. Riiiiight.

@lestrrat Every domain name you encounter was probably registered with XML since this is what EPP uses.
@lestrrat Also, every hiker depends on GPX and therefore XML.