You can’t open source it but the government could nationalize it and make it a benefit to small businesses everywhere without the anti competitive profit seeking motives of a private business controlling it.
The original commented suggested that an open source Amazon was the “real solution.” Open sourcing Amazon’s software and then nationalizing their distribution network is a very different suggestion!
Expropriation is the first step to destroying the thing. There no reason for unbelievably good customer service if you get paid by taxpayers regardless of outcome.
The employees at my local usps are pretty good at their jobs. But they are all Korean ladies.