You can translate Cockpit into your language without leaving Cockpit, then send the result here. A half-finished translation is welcome: whatever you leave empty stays English.
{placeholder} exactly as written..json file named after your language code (fr.json, pt-BR.json).No Studio? Copy the empty template (Cockpit's language menu, or lang/_template.json in the download), fill in the values and send the file. The details are in the User Guide.
Your file is checked the same way the Studio checks it (the language code, only lines Cockpit has, the placeholders unchanged); lines that fail are left out and counted. It is kept privately and read by the owner before anything ships. Nothing is published automatically. Questions: see Join us.