Request : Say which are open-source/proprietary

[etiennebonnafoux]

Hello,

As the title say, it would be nice to say which can be installed locally and which required to log into an API. Some compagnies doesn't want their data process by a third party.

Thanks a lot for your work,

Edit: I can do a PR if you think it is a good idea

[etiennebonnafoux]

I start working on that, but I would like to discuss the format. Should I present it in a table or should I mark the one who are open sources (which are a minority) ?