There are a few locals that are doing a good job with this and commercializing it perfectly so they can be in stores.
And then there's also the really local locals that just make it on request. Person to person. Think of the old Javanese grandmas that try to earn a little bit extra. I tend to support those the most, sometimes even buying a 5-10 liter container of plantain/cassava/breadfruit chips.
Same as the sharing culture in the Caribbean then, but in the Caribbean they bring leftover containers alongside the something they bring over. !LOL