One the verge of 1000 LV2s preinstalled in MODui and ther growing number of other preinstalled resources, just the world of Zynthian is vast enough to require a detailed roadmap to navigate.
Some sort of user contributed WIKI documentation for each plugin, synthesizer and SFZ file (some with special orchestration features as well as note range variation) could be a real time saver for users. Perhaps standardized database tables, giving the status and capabilities of each asset as well as space for free form comments on each, like the recent " List of my favorite plugins" post.
Not yet available open source assets could be mentioned in a suggestions section, using the same form.