I've seen a few stripboards laying around that have no copper tracks. After looking online I can see that you can indeed buy these but I can't seem to find why or how to use them.
How can you use it if there's no tracks to solder too?
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It's often called perfboard (perforated board).
You poke the leads of through-hole components through the holes, bend them to provide mechanical security then solder those leads to each other or to wires.
Example from here
Embroidery for engineers.