The source code is in another branch to the default.
Install com.menny.android.anysoftkeyboard first, then select the desired
layout from AnySoftKeyboard's Settings->Keyboards menu.
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.Download F-Droid