Over at NLM there is a post providing photos from readers of their home altars or chapels. HERE
I warmly recommend that you consider establishing something in your dwelling.
The use of a cabinet is a great idea. For example, think about an “entertainment cabinet” that many people have, a large piece of furniture with doors that open to reveal a TV, etc. These days, larger and better screens are pretty economical. Big one’s won’t fit in these cabinets. Hence, maybe it could be repurposed. I have one (left by the previous resident) where I am now and it would be perfect with the rearranging of shelves. I wonder if these aren’t going out of style now that screens are getting huge. There might be some available used or on consignment, etc.
As it happens, I have a whole room dedicated as a chapel. However, the attractive, abandoned piece of furniture I have would work very well. There are even additional hinges in the frame behind the doors so that the doors could be opened all the way, flat against the sides of the cabinet, instead of sticking out. I suppose the insides of the doors could be decorated with sacred images. The drawers would easily hold Roman vestments, since they are plenty wide and deep. Right now, I am cutting and staining boards to add as shelves to make it into a china cabinet.
I suspect that, before things get better, they will get worse.