Mark is working on a new module where team members can complete onboarding tasks either one at a time or by doubling up to finish faster. Eva asked him to create a small utility that calculates all the possible unique combinations of moves a new hire could take to reach the final goal. For instance, if a user needs to complete three milestones, they could take three single steps, a single then a double, or a double then a single, resulting in three distinct paths. This helper will eventually be used to visualize all the different journeys a developer can take through the platform.