Was ist Git? / What's git?

In short: version control.

Ok...

Surely you know the situation where you have a document, make changes, but then save it with BlaBla2 or something like that. Why? - Because you are (justifiably) worried that you won't remember the previous version. And who knows, maybe BlaBla1 was better than BlaBla2 after all.

So to make sure you don't end up with BlaBla194 and completely lose track, there are version controls. You may already know one of them: OneDrive. OneDrive automatically saves the files for you and you can still view all versions of them. This is exactly what Git does. Except that it's not just limited to Word, Excel and the like. You can use it to save all folders, all files of any type. Important: Everything locally!

But OneDrive is not local. I can access it from anywhere.

Yes, that's right! And that's where GitLab comes into play. GitLab replaces the OneDrive platform in our example. You can also share your folders with subfolders and files with other people on GitLab. Here they are just called repository. You can then also see who has edited what and when and thus have a complete history.

Cool and how is it with this GitLab?

It's best to take a look at it here. :)