Ask HN: App or service for linkable, “watch-later” video messages/screenshares?

There are plenty of options for making conference or video calls with a number of people. As someone who works remotely in a different timezone to others, I find myself regularly having to write long explanations of issues or features I'm developing to get feedback later in the day.

Ideally, I would love to be able to quickly and easily create a screenshare/video/mic recording of me explaining myself instead, that then gets automatically uploaded to a shareable link for the other person to consume later in the day.

Of course, I _could_ just record with Camtasia and upload to Dropbox or something but I'm wondering if there is a streamlined service that offers something like this?