CURRENT PROJECTS Retired couple (retired electrical contractor) 100% hardwired both security w cameras & network Tech couple w teens (chip design mgr) wireless security, 100% network no cameras + 7 extra conduit runs Tech couple under 30 (design & finance) hardwired security, 9 camera runs, full network w several repeater points SECURITY NOTES At the point we will remove security prewire from our proposal templates as the big wireless providers have installed in 3 of last 4 completions, and 1 of 2 in process. Each of the wireless installs required visible to the eye white sensors on all exterior doors which some might find surprising and tacky in custom homes Typical wireless contact install. The lower photo is an 84" x 120" entry pair for scale. What bothered me most is the salesperson told the client they would use the prewired contacts and prewire to control pads he had just installed and paid for. An hour later the install mgr made flimsy excuses why they couldn't (but was able to use in a prior build). Client paid $1600 to the wireless company. NETWORK Home uses a hardwire camera system hardwired network w repeaters. All clients are set up to work from home using their cell phones, so high quality wireless network is also critical. MISC "Smart" aftermarket doorbells w cameras don't connect the same as typical door bell buttons. Typically the units need an internet provider installed, up and running and the transformers in the doorbell system need to be modified, replaced, etc. Cryptic translated install instructions. Similar with some smart thermostats.

Can't see your drawing, out of focus. But, I would put in several hard-wired Ethernet points and one central WiFi router. You can always add more using one or more of the Ethernet ports.

My company installs cameras. Virtually all wireless cameras are less than perfect. Install wired POE cameras if at all possible and you'll never regret it. With that said, Reolink is pretty good and fairly reliable. Just remember most wireless cameras only record on what they determine to be motion. Ones with some kind of AI to determine if thats a person, dog, etc is very important if you plan to use notifications to alert you of activity. Personally I would not use cameras like Ring or Nest inside my house as they are too prone to data collection IMHO. Stick with companies that do JUST cameras and are not owned by a Google or Amazon type company.

The Honeywell T10 Pro thermostat with remote sensor(s) will do what you want, I think. You will wire the thermostat to the humidifier and adjust all settings there. You can place the battery-powered temperature/humidity sensor(s) wherever you like (within range) and configure the thermostat to manage the temperature/humidity levels based on the sensor(s). You can program the thermostat to switch temperature/humidity control among between the thermostat and among sensors based on a schedule or motion sensing. Note that the thermostat requires 24 volt power so you will have to user a transformer (example) to power it.