Suggestion Needed For storage

[NewUniverseEntrop]

Hey, i am building a blog website where user can signin and post BIG plain text files / 5mb image.

i can use GridFs , but shall i store everything in fs including { image, BIG plain text files , user info , other data } ? can i just create a folder called src.... is it good for serverless app ? this way seems pretty legit . i know that fs reading is slower than query but it doesnt really connection to mong

Thanks !