Thank you kindly @Roland . Looked through the commits on Alby's Github, both ARM and X86 scripts and indeed it was from 8080 to 8029. The file I have on my server somewhat shows 8033 with a note warning about it, dated back to September, but I cannot recall why other than a small discussion, my apologies. So digging around @Start9 GitHub files, I noticed they run Albyhub with Docker, which in this case would be my initial suspicion, however further their installation script puts Albyhub listening to only port 8080. Have a look please, line 102:

GitHub

albyhub-startos/docker_entrypoint.sh at main · Start9Labs/albyhub-startos

This repository creates the s9pk package that is installed to run Alby Hub - Start9Labs/albyhub-startos

We could be onto something!