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Ask HN: Software with no Open-Source alternatives
After seeing the great Rust security camera software project on the front page today, I started thinking about other software with no open-source alternatives. That is, are there still many industries (or just individual tasks even) that are necessarily locked into proprietary products because of complexity/cost of development, lack of interest outside of a niche of industry, or whatever other reason.
Would love to hear any anecdotes about peculiar instances of this or any other examples that are not obvious to the average dev!