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At some point I was searching for an open source car pooling service. I realized there weren't any so I started developing one on my free weekends.

While I haven't made much progress so far, I have been observing how much as a society we have been relying on route planning software. Also, I cannot overlook the effect of such services on the planet (see Amazon, Uber, and many more).

With all this as a context, I have been asking myself the following questions:

1. What would be the impact on society (especially inequality) if there were open source alternatives to such services?
2. What would a common core look like? (i.e. what is the WordPress equivalent for transportation/route planning, is OpenStreetMaps enough?)
3. What domain specific knowledge would it require to build such a software? (while in university I researched about the travelling salesman problem, anything else?)
4. What safety protocols would we need to develop when there is no corporation insuring users? (i.e. if I order something from Amazon and it's dead on arrival, I get either a refund or a replacement shipped to me for free)
5. What's the proper terminology to describe what I am describing?

Feel free to add any questions of your own. I created this post because I am free this afternoon and I wondered what it would like to discuss this with strangers instead of pondering on my own.

Edit: My free afternoon was taken away by an incident I had to respond to, it's now late o'clock here, but I will do my best to reply to all you magnificent people.