[Newbie] install focalboard with docker on to subdomain

Hi, first of all, I would like to thanks Cyberpanel community for creating good stuff!
I’m new to self managed servers, but I’m fast learner.
So, long story short, having VPS on Contabo.de (4 vCPU + 8GBram + 50GB NVME SSD) managed to install cyberpanel + wordpress. All runnig smoothly.
Now, need to install FocalBoard on to subdomain. Could you help me with that?
Thank you in advance!