[NO TUTORIAL]nginx reverse proxy docker container serving web apps on non 80 ports by app.domain.lan

*** PURPOSE of this video is of a strictly demonstrational nature and requires superficial understanding of all components, their associated terminology and cli commands involved (linux, systemd, docker, dhcp, dns, terminal, ports, asf.) from the view of a system administrator, i.e. the guy having [to] set this up. It does not aim at explaining my way of setting things up, does neither claim completeness or a following of best practices. Ultimately intended for the eyes of somebody already familiar with most of the components involved to propose a more elegant solution for my original goal. *** Nginx reverse proxy running in docker container for catching subdomain requests on my local network and redirect them to web apps running on non 80/8080 ports. Subdomains are of the pattern appname.domain.lan. For instance adminer.muncic.local which is running on localhost:8484