Currently there is no software license applied to this project, which means that no one else can use, copy, distribute, or modify this without being at risk, including end users who have had this add-on implemented on their site by a developer. Ref: No License
By putting it on GitHub, it seems like the intent is to be open-source, though without a license the only rights being granted are to view and fork the repository (but not even to make changes to the fork). Would it be possible to codify your intent by selecting and applying an appropriate license? Choose a License is curated by GitHub and does a good job of making license selection easy, and would allow people to use this add-on in their projects without being at risk of removal or litigation.
Currently there is no software license applied to this project, which means that no one else can use, copy, distribute, or modify this without being at risk, including end users who have had this add-on implemented on their site by a developer. Ref: No License
By putting it on GitHub, it seems like the intent is to be open-source, though without a license the only rights being granted are to view and fork the repository (but not even to make changes to the fork). Would it be possible to codify your intent by selecting and applying an appropriate license? Choose a License is curated by GitHub and does a good job of making license selection easy, and would allow people to use this add-on in their projects without being at risk of removal or litigation.