Soak the beans overnight with a tablespoon of salt. The salt will help the beans cook more evenly and help retain their shape.
Cross score the tomatoes at the top, then roast over the stove flame until blistered and expanded. Let cool then remove the skins and dice
Slice sausage into coins or half coins, set aside
Slice along the soft part of the soft pork, removing the tough skin
Slice the fatty part of the salt pork into a tight grid, then slice horizontally to get small bits of the soft fat
Slice up the meat of the salt pork very thin
Cook the salt pork and sausage on medium heat until fat is rendered and meat is sorta crispy, add jalapeno and onion and cook until soft, add the garlic then cook until fragrant \~30s
Pour in the chicken stock with the diced tomatoes and deglaze the pot
Add beans and the rest of the water
Salt and pepper to taste cooking until beans are soft 3-4 hours