So person A is talking to person B.
A is saying he will move, B asks when, and A responds "tomorrow", and after that he adds the following sentence:
ここに来るようになったぐらいだったかな、決まったの。
I guess it roughly means "It has been decided around the time since I started coming here."
I want to know what the ように means in this case.
ように means:
in order to / so that / hoping or wishing for something
However I can't really fit in these meanings with this sentence.