Best way to manage units conversion with internationalisation

[joeblew999]

https://github.com/a-h/templ/blob/main/examples/internationalization/main.go

Looks good , but I was wondering how we are doing unit conversions .

A simple example is date , where you convert the date to the representation for that locale.

Currency , temperature etc etc are other related examples.

I have a few ideas like using https://github.com/gonum/gonum/tree/master/unit but wanted to ask the crowd to see what is best .