Making a jointer for planer

So ran into issue of my face surface not being flat and not able to have room for a jointer.

Had a left over piece of melamine 11" and had a left over piece from gluing up a cutting board. My planer is 13" but prob could adapt wood size with other piece but wanted to see if this would work before investing time.

Works really good as long as you can get it shimmed right.