Request - Spline/curve tools

I just started working with curves to create shapes in blender, and I’m a little disappointed with the lack of tools. Mainly just a way to join two splines would be great but other spline tools as well. I did some searching but didn’t find anything. Is there another process I should be using?
Any links or if anyone knows how to write a simple script/GUI (artist here) I’d be greatful. I’m sure I’m not the only person who could benefit from more spline/curve tools.

Join the curves with Ctrl-J. In Edit mode select the Last point on the first curve and the First point on the other and hit F.