Hey @HeadClot , thaks for the feedback, we appreciate it.
The **StreetArch plugin is NOT under LGPL license. **This release is under a custom EULA provided on GitHub, where we grant you the commercial and royalty free license among other things (read the EULA).
What might have confused you is that at the end of the EULA there is a copy of the LGPL license - we legally needed to include that copy because we used the third party library GEOS which is under the LGPL license (see the relevant section there) - and the copy of LGPL is necessary to be compliant. That in no way means that LGPL applies to our plugin, since it is only a “work that uses the [third party] library”, and thus we can provide the plugin under any terms that we see fit.
Hope I clarified this for you?
There is an interest for other engine version, so we will be releasing this alpha for 4.18 also. Regarding the open source, we are thinking about it, and will probably get back to directly to you guys that are interested for that in order to better understand what are your precise needs 