raw head-on shrimp, body peeled and deveined, front legs trimmed off • jalapeño, thinly sliced • habanero, thinly sliced • garlic, thinly sliced • chiles de arbol, thinly sliced • about 1.5" knob of ginger, peeled and finely julienned • crushed chili flakes • optional: 2 dried Kaffir lime leaves, finely julienned • the zest and juice of 1 Kaffir lime (or a regular lime if that's what you've got) • + 1 Tablespoon fish sauce • soy sauce • water •