I want to build a software module which will be constituted of open-source material from another project. You can think of it as a theme for an OS from another one. It will also include logic and such to put this material in the correct place, which is what I’m selling.
The origin of the material is licensed under GPL and LGPL, and in the description of this software I will provide a link to download a full copy of its source code and instructions to build a working copy of it by yourself for free, and also give full credit to the material authors. Buying it would be an optional donation to me, or a way to install it with zero-configuration for the lazy.
As far as I could understand the GPL and LGPL license, it is OK to go with such approach, isn’t it?
Edit after 1 year: please read my first comment on this question.
As now I’m adding a bounty, I would like formal sources on the answer confirming if it is or isn’t legal or acceptable by the community.