Dilek

Adding the mistake I made twice, which is not about specifications at all: check the existing wiring before choosing anything.

A wired doorbell needs a transformer of adequate rating, and the one behind an old chime frequently is not. The symptoms of an underpowered doorbell are horrible and hard to attribute — it reboots when the infrared illuminator kicks in at night, drops off the network intermittently, or works perfectly in summer and not in winter.

So before you compare products, find out what transformer you have and what the chime is. If there is no existing wiring at all, that changes the shortlist completely and pushes you toward battery, with everything that implies.

The other one: measure the field of view against where your door actually is. A doorbell mounted at the side of a recessed porch sees a wall. No specification saves you from that.

Small thing that saved me once the share finally worked: check the ownership mapping.

User and group ids inside the guest are not automatically the same as on the host, so files can appear owned by nobody, or be unwritable, even though the share is mounted correctly. There are options controlling how identities are mapped.

Easy to mistake for the share not working properly when actually it is working perfectly and you cannot write to it.