This is a set of quick rules for the buying and selling of merchant cargo in The Expanse RPG. I wrote it before I got Ships of the Expanse module, wich has less abstract rules for that. We indeed switched to SotE's rules but here is the homebrew I wrote in case someone might find it usefull: https://docs.google.com/document/d/1UrHysDlqllrjtZt8V3VQ1RzLs2yPILqILKwTZx9GkYQ/...