Translation support will be available on next phpipam release, code is being redone and final checks ongoing. I have decided to go with gettext, it seems to be the most suitable for phpipam.
Translating is straight-forward, by providing translations for strings, for example:
#: functions/functions-mail.php:176 msgid “your domain username” msgstr “translated text”
There are many tools available to help with translation, like poedit and others.
If anyone is interested in providing translation, please contact me on email. I have already received some requests in the past, I will try to dig up old emails…