My first server was a single-core Pentium - maybe even 486 - desktop I got from university surplus. That started a train of upgrading my server to the old desktop every 5-or-so years, which meant the server was typically 5-10 years old. The last system was pretty power-hungry, though, so the latest upgrade was an N100/16 GB/120 GB system SSD.

I have hopes that the N100 will last 10 years, but I’m at the point where it wouldn’t be awful to add a low-cost, low-power computer to my tech upgrade cycle. Old hardware is definitely a great way to start a self-hosting journey.

Having a single, central receiver to collect inputs from 5+ A/V sources and deal them back, arbitrarily? to 6 different outputs seems awfully complicated. Something like Jellyfin or mythtv with one or more TV tuners would let you originate all of the TV & streaming signals from your central source to client players - kodi or whatever - in the player rooms. Most of those have at least some control through homeassistant. Kodi on RPis with some basic class D amplifiers in each room, run through the TV, if the room has a TV. Probably couldn’t get synchronized audio in all rooms that way.

Super easy, as it turns out. I run my own DNS and web servers, so I pointed quicken.com at my web server to capture the request, then used curl to capture the response. Both turned out to be plain ASCII, request like

stk.1=SMCI;.2=NVDA;.3=INTC;

as POST data, and responses like

qwin.quotes.ASTM.symbol 4 ASTM
.last 7 18.7400
.time 10 1573074000
.time.str 5 16:00
.change 6 0.4000

plus a whole slew of other optional fields for fundamentals, dividends, etc. It was a simpler time on the internet, when no one cared about leaking data and companies didn’t care if a handful of geeks reversed engineered their data structures.

This won’t help you, but I want to brag. I started using Quicken to track my finances at the turn of the century, back when it was all local storage. Quicken 2012 was the last iteration that used http (not https) to update stock prices. When they discontinued support, I captured the interaction and deciphered the formats. Wrote a proxy to intercept the request, look up the security info, and send back the data.

So, I self-host quicken.com. It’s saved me having to update Quicken or submit to their subscription model.

Yeah, don’t let the bashers get you down: wasting stuff just because it’s cheap is how we got here. Measuring your power use is the only way to make informed choices, and sometimes the results are surprising.

Like, I was surprised to find that my audio gear uses exactly the same power whether it’s playing or not. The subwoofer alone uses twice as much power as the RPi that feeds it signal. It’s maybe 0.02 USD/day (for the sub), but I’ve got extra smart plugs from a multi-pack, and it’s easy enough to put together an automation to power them all down if they’ve been idle a while.