Cutecity

I roast my coffee in a wok with a wooden spoon, then shake it outside in a strainer. If you just wanna taste it, it doesn't have to be expensive. It will be better with an actual roaster, but the jump in quality is worth it even with just a basic pan. You need a hood or some good ventilation though fyi, it smokes.

I have a homemade wine supplies shop near me that fills the bottles I already had and gives them back for less than half a replacement. I would assume many such places are equipped to fill CO2 canisters all around the world. I think they also do it at the hardware store.

I love this

https://saladtheory.github.io/