I'd prefer XCB over Xlib, but while X may feel crufty today and maybe even more in 5 or 20 years... it will probably still run. If you integrate with an html+j

I'd prefer XCB over Xlib, but while X may feel crufty today and maybe even more in 5 or 20 years... it will probably still run. If you integrate with an html+js viewer, do you link it into your binary? If so, what are its dependencies and will they be around? If not, will you still be able to use the same viewer in 5-20 years or will it have some breaking change that requires additional work? Worst case, you run VcXsrv in Wine, because win32+wine is the future proof platform; but if we're all running Wayland then, Xwayland should work, and I'd bet money if there's a replacement for Wayland in the next 5-20 years, it will have an available X server even if it can't integrate with Wayland clients.