Add a license

[DropD]

We should decide on a license, because without one it is unclear whether anyone is even allowed to use it.

My first suggestion would be MIT, as that is what AiiDA uses (and, as an AiiDA plugin, also aiida-icon). It means anyone can use (including commercially and in closed source projects), share, modify, the only obligation is that the license and copyright has to be included in derivative work.

I would only recommend to make sure that it is compatible with C2SM and EXCLAIM (ETH is fine with it for sure).

[leclairm]

Hum, more out of principles, I'm not sure about the "including commercially and in closed source projects" (even though I don't see any commercial or closed source project using it anytime soon).

[agoscinski]

@leclairm so C2SM and EXCLAIM have no restrictions on the license?

including commercially and in closed source projects

I don't have any strong opinion. Usually I go with BSD or MIT because less consideration about the license is needed if you want to include the library somewhere, which reduces maintenance work. If you feel very strong about it then we can also do LGPL.

[leclairm]

• Check ExClaim, C2SM
• Probably MIT

[leclairm]

Ask for copyright holder: C2SM? ETHZ? Other?