Issues with Network host mode and SearxNG

[JAAnon]

Hi, I'm self hosting a searxng instance using their docker file. However, using their default docker-compose.yaml file I get a "tcp 127.0.0.1:8080 already in use" error. They set "network_mode = host" as default for caddy. If I remove this line the instance starts but am not an expert and I don't really understand why I should let caddy connect to the host in this case and what is the difference if I simply let docker create a default network for caddy. Any help would be greatly appreciated thanks.