jonathan@jonathan-VirtualBox:~$ docker run -it --rm --network host \
   -v $(pwd)/server.json:/server.json \
   librespeed-cli:latest \
   /bin/librespeed-cli --local-json /server.json
   
Using local JSON server list: /server.json
Selecting the fastest server based on ping
Selected server: LibreSpeed Local [192.168.22.4]
You're testing from: {"processedString":"192.168.22.249 - private IPv4 access","rawIspInfo":""}
Ping: 2.45 ms	Jitter: 1.45 ms
Download rate:	594.31 Mbps
Upload rate:	468.81 Mbps
jonathan@jonathan-VirtualBox:~$