[ev_dev3]

The intention is to sell this software in a similar way to Sublime Text. So a one-off fee for a perpetual license. The main difference from Sublime is that Trayce's source code is available. If GPL3 isn't compatible with such a model then I'll have to re-evaluate what license to use..

[fdw]

IANAL, but GPL3 is compatible with selling the software (see Linux distros). However, it forces you to open up the complete source code and it allows the users to fork and recompile it as they see fit (but they must also open up their changes if they distribute it).