Filament Repeater Many to Many relationship

I have products, specifications models that have many to many relationships, the specifications group by the label on the pivot table of product_specification I want to build a form in which I can set the label of the will saved specifications the label input should be creatable, searchable, and selectable, and the specifications input should be multi-select searchable overall those inputs should be under the Repeater form which the user can add multi-group of specifications in a product thanks