It seems that only me commenting this thread knows LWT. A really cool program for learning every kind of languages... with lots of resources if configured properly. It is a package for setting a Localhost server and feed with whatever texts will want from, e.g. Latin, Greek, German, Hebrew, Spanish, Portuguese, English, Japanese, Chinese, you name it! It has lots of resources like exporting to anki flashcards, controlling your learning pace, converting to html format, etc... etc...

https://sourceforge.net/projects/learning-with-texts/

Apart from that, there are a few good tutos on the internet about how to use it. But, the official documentation in the website is just enough... I wish the owner would open-source it. But, even though it is an amazing free program...