I’m not a tax expert but my recollection is that the 2018 tax reform bill removed the ability to deduct home costs from your federal taxes. However, some states may still allow such deductions.

you can't deduct home costs unless you want to get visited by the IRS. If you are running your own business it's fairly easy, if you're working for someone else as a direct employee DON'T DO IT. you will get audited and have to pay those taxes and penalties if you're lucky and don't get charged with tax fraud. It's not worth it. If you need to set up something expensive make your employer buy it (new computer you are borrowing, laptop, audio equipment, whatever) and give it back to them when you quit/get fired/done with it.

You can’t deduct home office costs. Working from another state has complexities too. But the money saved from not living in the bay more than pays for the CPA.