Cheap/DIY approach to compressed powder candy

I'm interested in making tablet-style compressed candies (like sweet tarts or specifically the sticks from lik-m-aid), and while I can find ingredients on store packaging and figure out from there, I don't know how to compress the candies at home. I'd appreciate any advice anyone has on how to do this. So far the only even related recipes I've found have been for making molded candies out of granulated sugar, but I think I need a more technical/high-pressure approach for powdered ingredients to hold together and be hard enough (I am aiming for the hardness of a mint lifesaver basically). Does anyone have any experience or resources?