Xabber is available on the Android Play Store and another software repository that contains only apps that are what ?
F-Droid F-Droid is a software repository (or "app store") for Android applications, similar to the Google Play store. The main repository, hosted by the project, contains only apps that are free and open-source software. Applications can be browsed and installed from the F-Droid website or client app without the need to register for an account. "Anti-features" such as advertising, user tracking, or dependence on non-free software are flagged in app descriptions. The website also offers the source code of applications it hosts, as well as the software running the F-Droid server, allowing anyone to set up their own app repository.
Automatix (software) Automatix is a tool designed to automate the addition of applications, codecs, fonts and libraries not provided directly by the software repositories of Debian-based distributions (specifically Debian, MEPIS and Ubuntu).