i know that google have a lot of fonts but i wanted to add some fonts from here. ive tried to see some tutorials but none of them solved my questions. i didnt search a lot since all the answers seems the same but i think ill try to keep this updated if i see an anwser. im asking here to save some time since this involves a birthday present for a friend

if you know how to do it, please let me know! and thank you in advance