SA Residency/Mozam Visa (Maputo)

Hi All,

I am a US citizen who holds a South African residency visa based off of my spouse (who is from SA). He is doing lots of business in Maputo and we basically live here now. I will be leaving the country one a month to fly down to see family, keep things in check with work, etc. Is there a way around having to get a visa every time i cross the border. So, instead of getting a visa until my next flight is booked to return back to SA and paying the R670 fee every month, is there an extended visa based off of his work visa. OR because my residency is SA technically and S. Africans are able to come and go without visas, is there something i can get based off of that?

Anyone else have these issues or can guide me, please?

Thank you in advance.