* No server processes required other than PostgreSQL itself
* Front end is C++ Qt client that each user installs,
* it seems to run OK over VPN (IPsec) to a remote PostgreSQL
* It has a permissioning system, the PostgreSQL users are Postbooks users
* it can be customised by adding fields and buttons to forms and adding custom logic using JavaScript
* The developers are also making a full web/mobile Postbooks solution that works with the same database, it is not packaged yet
* the developers (xTuple) operate as a software development company maintaining the code, running an annual conference, supporting business deployments, etc
* the CPAL license is potentially not GPL compatible, although it is agreed that CPAL is a free license
## Evaluation of [[Reporting|UseCases/GeneratingReports]] UseCases