Idk what powder you’re talking about for ants, but the borax gel works amazingly well and isn’t toxic.

Like what

How do the thirdreality motion sensors work with pets?

If it’s a mesh system yes running wires would be a nice upgrade

Wired backhaul?

RIP what a hero. Anyone know of a replacement? Will these eventually stop working?

What do you want to do? You could try to Ppick a problem and then find a service to solve it. Maybe a pi hole ad blocker, or homeassistant for home automation. Both of these run well on a pi. Then follow the guide to deploy those services.

Dead internet theory?

Animagraffs makes 3d explainers of how machines/vehicles work. The one on the “Big Boy” steam engine is amazing.

Ancient Americas talks about pre-columbian America

It helps to not click sponsored listings, and avoid listings with expedited shipping for free + free returns. Also if you do get drop shipped, mention it in your buyer feedback so others can search for it.

Emporia Vue has circuit level monitoring. You can flash ESPHome to get rid of cloud functionality.

This is great. I tried putting a shock sensor in my metal mailbox which is attached to my building and couldn’t get the signal to reach. This is a whole other level of advanced work!

Juse use easyoptouts. Way cheaper for same thing.

You already have a pihole. I assume you like it. You could buy a cheap minipc/NUC and set up proxmox on it and learn to set up and configure a second pihole as a virtual machine. Then you’ll have a server running with the ability to expand as needed. You could look into setting up new network gear (like tp-link’s omada) and run the software controller in a VM. Or you could dabble with HomeAssistant and get into smarthome. Or set up a photo management tool like Immich. Like others have said, find a problem you want to solve and use these tools!