I'm not gonna show anything but I've done quite a bit. My house is a four-story townhouse with the second floor being a single room where the kitchen, living room, and dining room are in an open floorplan. We put most of our stuff there. My wife built shelving into the corner of the den area, wrapping the corner and going up to the 12-foot ceiling. She also added a rail-mounted rolling ladder, so we've got a nice library setup. Beneath that is locking cabinets for craft material and I keep spare electronics and cabling in it. We have the same model of cabinet mounted underneath the nook for our television where the cable hookup is and that's where I keep most of the homelab.

I've got an OPNSense appliance router running FreeBSD. I made no attempt to modify it. I tried to build a Linux router but realized I can't make anything that takes up this little space and the PCIE-mounted NICs to get the number of ethernet ports costs a lot more than buying an appliance. I built the NAS server myself, using ASRock Rack mini-ITX motherboard with AMD CPUs that have graphics integrated onto the chip. It's got a 1 TB SSD cache and 8 spinning drives. The machines I use as servers are six Minisforum small form-factor PCs, similar to NUCs but fanless, cheaper, and with AMD 6-core processors. I don't think they outperform or anything, but having more cores makes it easier to pin many VMs. These plus the NAS server and television are plugged into two Cisco switches that support 10 GbE and two UPSes that typically give me about 30-40 minutes in the event of the frequent power outages we get in Texas.

I've been tempted forever to try building a "real" server, but they're power-hungry and loud and way more than I need. The small form-factor PCs have done the job and I can run them in a closed cabinet that looks identical to all my other cabinets. The only modification I needed to do was install USB fans in the cabinets themselves to ventilate the heat, but they don't make any level of noise I can perceive.

I've got Aruba Instant-On WiFi access points, one for each floor of the house. They run five separate networks, one for work devices, one for IoT, one for televisions that aren't hard-wired, one for guests, and one for a main non-work WiFi network. Everything except the main network is forbidden from sending packets to local IPs. I don't know there's much benefit outside of that, but it allows me to set the television network to be optimized for streaming, low QoS on the IoT and guest networks, and make the main network WiFi 6. It's also pretty funny to ban porn on the guest network and see which houseguests notice and complain about it.

Being in a townhouse, the only walls I have running floor to ceiling are either shared or external, which means they're very tightly insulated, and running cable between floors was a pretty serious challenge. If you're ever going to do it, I would recommend doing it immediately upon moving in, before you do anything else, before you even move in furniture. I'm pretty serious about cable management and keeping things neat, so I run everything I can through walls and/or floors. No cable is loose except at the last mile.

As for the self-hosted services, I don't use any sort of on-prem management layer like vSphere or Proxmox or anything. It's all Arch Linux with libvirt running on hardware-accelerated KVM. I at least automated the Arch builds by putting provisioning scripts on USB drives with a "cidata" label since the Arch installer comes with cloud-init and you can use this for unattended installs by just in two drives at first boot instead of one. Most everything else runs on Kubernetes, with Longhorn as a storage provider. I use Ansible playbooks to install Kubernetes and the applications are installed and configured with GitOps. So the external services are a Git server and Minio on the NAS acting as a backup target for anything that will backup to S3 as well as a package mirror and image registry so I can provision everything without Internet access. I load balance the control plane with kube-vip and Ingress with MetalLB, using the L2 advertisement features.

Unbound on my router is configured as the default DNS for the LAN. This recurses to NextDNS. I block outbound port 53 to try and ensure everything is actually using this, but there isn't much you can do to block DNS over HTTPs without a MITM proxy. Pretty much any known ad source, telemetry, tracking domains, is all blackholed at both the Unbound and NextDNS layers. It doesn't seem to break too much. The Paramount+ app stopped working, but their actual content is streamable through Prime Video using the same subscription. I should probably just cancel it, but they have SEC and NFL football that I still geek out for plus I've been rewatching Aeon Flux and Daria and they own the MTV back catalog.