If you keep your CA residency, you will continue to owe CA income tax every year.
There are three, maybe four states that nomads often change their official residency to, because there are no state income taxes in any of them, and because they make it easy for full time RV types to do so. FL, TX, and SD are the well known ones. Our fearless leader, BOB, uses NV and extols it's virtues.
We have a number of threads here on this subject, so much so that the sometimes conflicting information can be confusing.
Escapee's Club in TX claims that using their mailing address satisfies all current legal requirements and gives you a valid address for driver's license, vehicle registration and insurance, voting, etc. TX has an annual vehicle inspection, but if you are out of state, you are fine - you just have to get it done within a few days of coming back to TX.
Here's a link to info on it
https://www.escapees.com/images/pdfs/texan.pdf
And some info on becoming a FL resident:
https://www.escapees.com/resource-center/domicile-info/florida-domicile-information