Use APKPure App
Get DroidTR IME old version APK for Android
Keyboard application developed by the DroidTR community
Open source android keyboard application
Source code: https://gitlab.com/droidtr/org.droidtr.keyboard
F-droid: https://f-droid.org/tr/packages/org.droidtr.keyboard/
For your opinion, suggestions and feedback: http://t.me/droidtr