Abafruit LCD Help needed

Hello,

i want a nice working LCD on me Pi (Raspberry Pi 3B+)

I have test many scripts only one is working but i don’t like that one.
I found this.
yet-another-adafruit-lcd-16x2-implementation-t3065.html
That one don’t work anymore sadly but thats how i want it. Can someone help me with it or someone has a nice working script for me?

Greets Marco,