docker-compose.yml

version: "3.8"

x-environment-variables: &environment-variables
  PUID: 1000
  PGID: 1000
  TZ: Europe/Berlin

services:
  vpn:
    image: linuxserver/wireguard
    cap_add:
      - NET_ADMIN
      - SYS_MODULE
    environment:
      <<: *environment-variables
    volumes:
      - ./services/wireguard/config:/config
      - /lib/modules:/lib/modules
    ports:
      - 51820:51820/udp
      # from transmission
      - 9091:9091
      - 51413:51413
      - 51413:51413/udp
    sysctls:
      - net.ipv4.conf.all.src_valid_mark=1
      - net.ipv6.conf.all.disable_ipv6=0 # TODO inspect what this does
    restart: unless-stopped
  torrent:
    image: linuxserver/transmission
    network_mode: "service:vpn"
    healthcheck:
      test: curl https://am.i.mullvad.net/connected | grep -q "You are connected" 
    environment:
      <<: *environment-variables
    volumes:
      - ./services/transmission/config:/config
      - ./data/downloads:/data/downloads
      - ./data/watch:/data/watch
    restart: unless-stopped
  plex:
    image: linuxserver/plex
    network_mode: host 
    environment:
      <<: *environment-variables
      VERSION: docker
    volumes:
      - ./services/plex/config:/config
      - ./data/media:/data/media
    restart: unless-stopped
  prowlarr:
    image: linuxserver/prowlarr:develop
    environment:
      <<: *environment-variables
    volumes:
      - ./services/prowlarr/config:/config
    ports:
      - 9696:9696
    network_mode: host
    restart: unless-stopped
  sonarr:
    image: linuxserver/sonarr
    environment:
      <<: *environment-variables
    volumes:
      - ./services/sonarr/config:/config
      - ./data:/data
    ports:
      - 8989:8989
    network_mode: host
    restart: unless-stopped
  radarr:
    image: linuxserver/radarr
    environment:
      <<: *environment-variables
    volumes:
      - ./services/radarr/config:/config
      - ./data:/data
    ports:
      - 7878:7878
    network_mode: host
    restart: unless-stopped

File structure:

In essence, to run the whole stack I do
cd /media/[username]/[drive name]/torrentbox
docker compose up

Weird "full" location on status page of radarr: