We've got 1 and 2 settled. Ikan bilis is slightly different from the anchovies we're used to seeing in Italian food. These little fishes are dried but pack just as much salty flavour with less of the fishiness, and are dirt cheap in most Asian dried foods stores. Roasted along with the peanuts (also dirt cheap), this is a super addictive combination of salty nutty umami that I find myself snacking on even without the nasi lemak.