Unemployment Benefits: Trailing Spouse - California to New Hampshire, Which State to Apply

My question involves labor and employment law for the states of California and New Hampshire

My husband received a fantastic job offer in New Hampshire and he accepted the position.
My children and grandchildren live in NH so the decision was a "no-brainer".
I have been working full-time for the same company for 3 years and have looked into filing for "trailing spouse" unemployment benefits.

I know both CA and NH have "trailing spouse" unemployment benefits but......
Do I file in California or New Hampshire?
Do I file before I leave or after I get to NH?

I'm not sure what to do and I'm getting stressed out......
Please help!!

Thank you

Unemployment Benefits: Trailing Spouse - California to New Hampshire, Which State to Apply