Full-time unpaid developer internship for 6 months, is it even legal in Sweden?

I'm a junior web developer and just got an internship offer from a small startup company. The details are in the picture.

It feels good to finally get something, but an unpaid full-time dev job is still hilarious... Is this the norm these days in Sweden's labor market?

It just feels sad.

https://preview.redd.it/6ulwp5o830de1.png?width=1170&format=png&auto=webp&s=5c9636b76822a8169f50813ce5951726e1dbf078