What i mean is for newbie mongodb is trash , I am full stack dev and i have to use this for complete mern project and how we gonna do that => by watching video tut which you guys but you guys change syntax every year that makes impossible to work on ongoing project. So I somehow arranged to have mongodb in my mac m1 then bloody xcode did some changes now again errors after error . So I somehow thought I should use atlas atleast i will not be in my system and guess what you guys changed some **** again { mongoose.connect(connection_string, { useNewUrlParser: true, useCreateIndex: true, useUnifiedTopology: true }) } This one !! https://www.mongodb.com/community/forums/t/option-usecreateindex-is-not-supported/123048 So now deleted that project and wish to never hear mongodb in my life again and you guys can change the syntax in meantime !! Because everytime it took around 8 hr to know what the **** is wrong with that error. Please syntax is not like climate that you change every year.