See:
- Open source software. This is essentially the same as free software ("free as in freedom") but the different terms reflect a different philosophy and emphasis. For a nice summary of where open source stands in a range of applications see Open source won
- Open Source Appropriate Technology (OSAT)
- Open source engineering software
- Open-sustainability
- Open source patents
- Open source rapid prototyping of OSAT
- Open source technology
Compare and contrast with the more restricted
"Basically Open Source technology is the only way we'll end up as citizens in this technological world, rather than as serfs." - Vik Oliver, 2018 [1]