I know that there exists a presentation (generators and relations) of the general linear group over a finite field. Is there also a presentation of $GL(n,\mathbb{Z}/m\mathbb{Z})$ for an arbitrary integer $m$? And perhaps also for the symplectic group over $\mathbb{Z}/m\mathbb{Z}$?

I was surprised that $GL(n,\mathbb{Z}/m\mathbb{Z})$ is implemented in GAP, so I assume that there exists a presentation but I could not find anything in the references.