The EA Handbook you put together included essays originally published as blog posts by individual EA community members in English. There’s no reason there couldn’t be an EA Handbook for original content generated in and for other languages. There’s probably enough content in German to produce a “German EA Handbook”. I’m not confident there is enough original EA content in other languages such that a corresponding EA handbook could be produced.
The EA Handbook you put together included essays originally published as blog posts by individual EA community members in English. There’s no reason there couldn’t be an EA Handbook for original content generated in and for other languages. There’s probably enough content in German to produce a “German EA Handbook”. I’m not confident there is enough original EA content in other languages such that a corresponding EA handbook could be produced.