Some reading on IRIs and IDNs

[Petite Abeille]

> On Dec 9, 2020, at 09:38, Stephane Bortzmeyer <stephane at sources.org> wrote:
> 
> There is an implemention of Punycode in every standard library,
> whatever your language.

There is also GNU Libidn (idn):

# idn --quiet räksmörgås.se blåbærgrød.no
xn--rksmrgs-5wao1o.se
xn--blbrgrd-fxak7p.no

https://www.gnu.org/software/libidn/manual/html_node/Invoking-idn.html