@contact thanks for your reply. I have tried installing it in my OpenBSD machine. I though believe it needs more memory to build. It quits with out of memory errors.
@contact aye, I will probably build it on a local machine and then upload it to the server machine.
Yet, as a simple, KISS, non-docker alternative to Discourse for a true web 2.0 forum feeling, it does the job well, and is really quite simple to install.
I believe stable release should more or less be around the corner now...
https://discuss.flarum.org/