New OS on ugreen DH4300

Hello everyone,

i am thinking about getting a ugreen DH4300, however I don't trust the company with their is so I am thinking about installing something like OMV on it. Has anyone here done that to this line of machines? I found no one saying anything about this online.

On another note. Currently I have a raspberry running my services. Would it even worth it to get that ugreen? Or should I just upgraded my pi with some hats or a DAS?