Under the "showcase" forum, what about having a "software" category?
If you want to discuss software you are developing for Manjaro, there is also the #manjaro-development:projects category
What about others software, i know it's not manjaro's responsibility, but maybe manjaro users can share their experience with software running on manjaro, fixing some problems
I think that category will do the job, thanks
That kind of information is probably best in the category I link to below. Just add [Sharing] or something similar to the title if you are posting a workaround or solution to an issue you have resolved yourself so people know it's not a request for assistance.