Hub integrates the four key Nextcloud products Files, Talk, Groupware and Office into a single platform, optimizing the flow of collaboration. Eliminate the confusing hodgepodge of different SaaS tools and the compliance, security, cost and productivity issues that come with it and standardize on a single solution with Nextcloud Hub.
On my Debian repository have latest builds https://apt.jurisic.org/ . Check how to add repository here.