Great aproach Erick. Leaving facebook &Co behind to build communitys using libre and open source software is the right step away from censorship, mass survaillience and manipulation towards self organized and federated communities.
The forum you have choosen is a great start. But still it creates a silo. Nobody within this community can engage with another, unless they are joining another plattform.
To make this forum a flurishing place, you’re by now in concurence to other plattforms.
But this doesn’t need to be like that. There are plattforms using open standarts be be able to communicate with all using the standart.
Some weeks ago I just found one which was based on gnusocial and beeing a place for sharing videos and photos. I will link it here once I found it again
The “normal” gnusocial looks simliar to twitter: https://gnusocial.de/paulfree14
On all the mention plattforms you can build on your own server your own community, but still be able to interact with people being hosted by other servers.
Would be happy to hear some feedback,
kind regards Paul Free