Dendy console w keyboard

In my childhood, I had a classic Dendy console, spent many hours with it and loved it very much. Such consoles were very popular and I saw many different types.

Recently I found myself at a flea market in one of the Ukrainian cities and saw this type of Dendy console that I had never seen before. This is a Dandy console with a full QWERTY keyboard!

I found out on the Internet that there were cartridges that allow you to learn typing or even simple programming! It was big news for me. It's a pity that I didn't have them then. Does anyone have cartridges for Dendy with keyboard?