how do I make it run when my player starts? I guess, I need to change init?

Yes, that's one way. Another way is to use Hijack's "Exec" feature (although I don't know if you're able to run the Hijack kernel or not, I get the impression you've put a full Debian distro on your player?). Another way is to use "preinit", which can be found with a BBS search.

Note that if you run any programs from /Drive0 you won't be able to synch with the player because it will prevent the drive from being mounted and unmounted by Emplode. So you need to either put things on a different partition, or use Hijack which lets you exec only in DC mode if you like.