For the whole process, pretty much all you need is:
1. an oven to roast cocoa beans (though you probably want a tabletop coffee roaster for reliable results)
2. a rolling pin to break apart roasted beans into nibs and husk (this does get old pretty fast after 5 batches of chocolate, so people recommend moving onto another kitchen countertop device, the Champion Juicer)
3. a hair dryer to separate husk from nibs
4. a melanger, as mentioned above, to refine the nibs (with any desired additives like sugar and milk powder) for 24-72 hours
5. a couple of bowls and a good thermometer for tempering
6. (optional) plastic molds for shaping your chocolate.
https://chocolatealchemy.com/how-to-make-chocolate-the-compl...
(Off-topic: is there a way to format a bulleted/numbered list to not require separate paragraphs?)