Especially as Condor is used more for flight training, one great limitation is frustration by landscape developers over many little ease of use issues which we learn to overcome, but can be a larger hurdle for some.
Just a few starting links for reference.
- General description of Open Source -> https://opensource.com/resources/what-open-source
- Copyrights and Licensing -> https://haacked.com/archive/2006/01/26/ ... ject.aspx/
- XCSoar is Open Source, contributing -> https://xcsoar.org/develop/