How to control the galvanometer scanner and XYZ stage to work synchronously?

I have a laser galvo scanners and XYZ stages. They are controlled separately by a servo control card and a galvanometer control card, and each performs well when working alone.
Now I want to combine them for hybrid interpolation and large-area marking.I know that there is a control card on the market that integrates the servo axis and the galvanometer axis, but I do not plan to buy a new control card for the time now.
Maybe there are some stitching algorithms available? Is there an open source solution to do this?

I have a laser galvo scanners and XYZ stages. They are controlled separately by a servo control card and a galvanometer control card, and each performs well when working alone.
Now I want to combine them for hybrid interpolation and large-area marking.I know that there is a control card on the market that integrates the servo axis and the galvanometer axis, but I do not plan to buy a new control card for the time now.
Maybe there are some stitching algorithms available? Is there an open source solution to do this?