you might want to check your .env file at your project root. In this file you can setup many things such as : 
CD_HOST=cd.basic-company-unicorn.localhost/
CM_HOST=cm.basic-company-unicorn.localhost/
ID_HOST=id.basic-company-unicorn.localhost/

There is probably something in there already.

For the http vs https, Traeafik is acting as a proxy here, and you can see on each services that has a labels node containing these :
      - "traefik.enable=true"
      - "traefik.http.routers.id-secure.entrypoints=websecure"
      - "traefik.http.routers.id-secure.rule=Host(`${ID_HOST}`)"
      - "traefik.http.routers.id-secure.tls=true"
So by default you should be on https, if I am not mistaken.