itch.io

For Amelia you need to hangout with her for a run (you unlock the ability to run with her on Wednesday morning I think through normal progression), after the run you'll be back at home with Amelia in your room. Talk to her and ask her questions, there you will see an option to ask her to join the farm.

Just do her route I guess, don't lock it out, I got to ask her when she was in the pool after I took Mario out