Several such releases exist on the forum but all of them are old and don't work anymore. I updated one of them, this now works on the latest Rathena, apply both in this order :
https://github.com/SeravySensei/rathena/commit/e02ba8bd88c626baca4619bbb2dbaecd30c93f9b
https://github.com/SeravySensei/rathena/commit/b928ee02b19ef18460a82a37c170473877bf11f1
(add .diff or .patch to the url to get those)
Yeah I noticed, it broke when I updated my master, meh git makes things hard.
You need to apply these two in this order :
https://github.com/SeravySensei/rathena/commit/e02ba8bd88c626baca4619bbb2dbaecd30c93f9b
https://github.com/SeravySensei/rathena/commit/b928ee02b19ef18460a82a37c170473877bf11f1
add .diff or .patch to the end to get the diff or patch.