Streaming reaper video with (tight) synced audio

[dadada]

Hi,
I sometimes collaborate with people and would like to send them a link to the video I have in reaper (or a screenshare) with audio synced. And I mean "really synced" as it would be when played locally in reaper.

I know there are some oferrings like source live from source elements:
https://source-elements.com/products/source-live
https://source-elements.com/
It seems nice but at 1K USD for the software it's pretty expensive.

Is there another way to do this that works reliably or is the only way to do it with source elements source live?

Thanks!