Open-source software (OSS) is not free from costs; maintaining, running, and developing it requires resources. To ensure long-term sustainability, several commercialization strategies have been developed, balancing openness with financial viability, in a manner suiting the needs of the owner. Here, we consider "commercialization" as any means to monetize OSS, whether it remains in an academic setting, is adopted by a company, or spun out into a startup.