How to run the new Content Builder everytime I debug/run (even when the game doesn't rebuild)?

I’m using 3.8.5preview2 and have switched to the content builder project to build my content (I followed the instructions from the docs page), and so far it’s great compared to the old tool aside from the fact that it only runs when building the project. If, for example, I change an asset, and then hit F5 in visual studio to run the project, it won’t actually run the content builder if no changes were made to the game project. I have to manually right-click, build/rebuild on the game project for it to run, which is a little bit annoying.

How can I make it so the content building happens every time I start up the game, even if it doesn’t rebuild the game project?