Mount synology to Docker container via MacOS

Hoping someone can help, I’m running docker desktop on macos and want to point sonarr etc to my synology as that’s where my media files are stored but I don’t know how to mount the synology on the mac so that docker can see it? I can access the synology in Finder…any help would be much appreciated. Container set up using docker compose.

Thanks, I’ve done that but get the following error message
ERROR: Encountered errors while bringing up the project.
Matts-Mac-mini:~ macserv$ ROR: for radarr Cannot start service radarr: b’Mounts denied: \r\nThe paths /Volumes/media and /etc/localtime\r\nare not shared from OS X and are not known to Docker.\r\nYou can configure shared paths from Docker -> Preferences… -> File Sharing.\r\nSee for more info.\r\n.’

My docker compose yml is

image: “linuxserver/radarr”
container_name: “radarr”
- /Users/macserv/docker/radarr:/config
- /Users/macserv/Downloads/completed:/downloads
- /Volumes/media:/movies
- “/etc/localtime:/etc/localtime:ro”
- /Users/macserv/docker/shared:/shared
- “7878:7878”
restart: always
- PUID=501
- PGID=20

Should add that I’ve added Volume/Media in file preferences in Docker…

Any further help would be great?