This app isn't supported anymore. A more up-to-date fork exists, named https://f-droid.org/packages/com.anpmech.launcher. A fast, lightweight search-based launcher. Currently the app requires no permissions and the APK's size is lower than 100KB. Use it in conjunction with your current launcher as an alternative app drawer to quickly launch your apps. You can also launch the app enabling its permanent notification or by long pressing/swiping up the home button.