Just download the .apk file and install it. For now, it’s only available from this website, but may be included in the F-Droid and Google Play repositories in the future.
You may need to authorize Android to install packages from other sources than the Google Play Store. You have to check the “Install unknown apps” or “Unknown Sources” option either in the Security settings or Apps and notifications settings of the phone, depending on the version of Android.
RxLauncher needs only two permissions:
- reading files to be able to let you select your own icons.
- uninstalling apps to… uninstall the apps you want to get rid of.