Hardware
Below is a brief overview of the computing machinery that I use daily.
Laptop
My main working laptop is a Lenovo Thinkpad Carbon X1 G8, which has a great build quality and is very light. It runs NixOS. Another laptop worth considering, after this one falls apart, might be the then-current generation of the Lenovo Thinkpad T14s.
Smartphone
As a mobile computing device I use a Google Pixel 4a, running GrapheneOS. The phone has all the hardware features I could imagine needing and things like the fingerprint sensor are not necessary for me.
NAS
For network storage and internal infrastructure, I use a small Supermicro server with an X9SCM-F motherboard, populated with an Intel Xeon E31220 CPU.