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If you measure the success of a code base by features, however, open-source software is the winner.
When you enhance open-source software, you have to provide others with the source so they can build on it further.
Some open-source software comes with poor documentation, just like some proprietary software.
We accomplished this feat by using only commodity hardware and open-source software.
However, the open-source software browser's security story has had to deal with some hiccups.