he there is the entry of the pup key named in wiki still walid? becasue there stand [expires: 2020-01-30] maybe it should be renwed? https://wiki.xiph.org/index.php?title=Icecast_Server/Installing_latest_version_(official_Xiph_repositories)&mobileaction=toggle_view_desktop and the other question is can i use the ubuntu 18.04 things for 20.04?