If I already have my own laser pointer, do I have to use the one from you?

Does the laser you have have the threaded part or not? Please check the attached picture.
If it is like the one in the attached pictures, it can be worked on NOMAD by an adapter: https://www.moveshootmove.com/products/polar-alignment-for-astro-photography?variant=44309350711513
If the laser does not have a threaded part on its head, you will need to get a new one.