How do I make this cut?

I have a mesh setup to make a sort of female end of a dovetail cut. Is there just a boolean modifier to do this? Are there any recommendations on a better way?

Here is an image of what Im trying to do (Highlighted with blue line)


Boolean modifier should do the trick!

happy bl

So to be clear. I would make a model that is roughly the negative of the cut that I want to make?

If you want, you can then apply the boolean modifier and delete the negative, but in most cases its better to not apply modifiers as it’s easier to edit it like that.
in the outliner you can turn off the negative model both from the viewport and from render