I am having trouble interpreting this sentence in a manga, the text was split in two bubbles which is why I separated them. 「日之出ん家でしてくればいいのに」 「そうすりゃもっと長く一緒に居られる」
from other threads, ～ばいいのに seems to imply wishing something happens or "should do (but haven't done)". which leads me to think it means something like: "I wish you would give me X, (it would be good) because Y" "I wish you would give me hinode's address, (it would be good because) you would be able to stay together longer".
However, the で particle usually means "at" (at a place/home/...) or "with" (with a tool/with scissors/etc). I have no idea what it is doing here.
context: weird cat (seemingly evil/bad/....) on the right talking to the cat girl on the left