Some projects use a copyleft license like the GPL or AGPL by default but also sell their product under another license to parties that want to avoid copyleft. T

Some projects use a copyleft license like the GPL or AGPL by default but also sell their product under another license to parties that want to avoid copyleft. This way the product is FOSS but companies that want to use it in their proprietary software have to pay. https://en.wikipedia.org/wiki/Multi-licensing#Business_models https://en.wikipedia.org/wiki/Multi-licensing#Business_model...