So that setup effectively gives you an all-ports available connection (except 22) from your mobile device and anything that connects through it, like a laptop? The exit node would be the VPS.

Could I skip the home router and EoIP+VPN directly between mobile and VPS, for instance?

I am in a situation (restrictive firewall on ethernet/wifi, prefer personal mobile connection but it’s cgnat or something equally crap) this could be very useful for me.

What’s the recommended way to measure power consumption? Any instrument in particular?

Happy customer for years. However, they recently changed their price schemes. The cheapest plan (1 EUR monthly) no longer allowes custom domains, you need to pay more for that.

People in 90s and 2000s used to get informed before going online, as it used to be a big spending and commitment. Between all the tech-utopia hype you also got to hear about what to avoid and how to behave.

Nowadays you only need a cheap smartphone and start scrolling through algorithm-fed content indefinitely. No need for technical knowledge because the company takes care of that. No need for an intro class, because who even bothers anymore?