Using my office Mac music server at home

H to all
Like in description,
Can i use MY OFFICE MAC MUSIC SERVER AT HOME?

We need more information. Is your office music server running Roon? If yes, you could use Roon ARC at home, but not regular Roon because regular Roon only works on a local network, not over the internet.

Some people have gotten this to work over the internet with a VPN like Tailscale, but this is not an officially supported configuration and you will therefore find discussions in the Tinkering area of the forum.

Yes i can now run roon arc but obviously not regular app.
Is there a way to map my office’s server via my office’s fixed ip connection?

Only with a VPN and some configuration. Like I said, this is not an officially supported configuration and will not work out-of-the-box.