dot20

You really just need, like, a screwdriver set to get into most laptops. Maybe you can search online (e.g. on YouTube) for tutorials for your model. Then you can buy a replacement fan and also replace the thermal paste, because 13-year-old thermal paste surely isn’t doing you any favors in the performance department. Altogether it shouldn’t cost more than €50 (if you’re careful not to break any internals).

BTW, if you want to watch YouTube videos with less resources, you can also copy the video URL into VLC

Any second-hand business class laptop that fits your budget, i.e. HP Elitebook/Probook/Zbook, Dell Inspiron/Latitude/XPS, or Lenovo Thinkpad.

Businesses tend to get rid of them after 4 years, even if they're still in good condition. Great bang for your buck and easily repairable if something does end up breaking.

You'll have to install Linux yourself, but generally support for older hardware is OK.

IMPORTANT: make sure the BIOS isn't locked before buying.

Dual SIM phone

Jerboa, because it just works and doesn’t overcomplicate things.

Does it work well?

hates Macs

buys M2 Mac

dog knows who's ARM implementation

AFAIK you don't have to use it as a router. If you configure all the interfaces to LAN it should just act as a switch/AP combo.

https://nij.ojp.gov/library/publications/through-wall-sensors-law-enforcement-market-survey

IME those can be unreliable though, and they're barely cheaper than Zigbee bulbs

In fact, autistic burnout is a thing that can happen to autistic folks (as opposed to occupational burnout)