Use a small software defined radio to listen to ADS-B messages (real time airplane telemetry— even with a crappy $10 USB SDR dongle I can sometimes see planes that are 100+ miles away)
Host my website (if I ever got any actual traffic it might be a problem, but since 99% of the traffic is me it's ok)
I have been working on my own hosting as well and I wonder where the tipping point is, and if it's in regard to multiple users at once, or just consistent website hits?
For my use case (almost entirely static content), I think the bottleneck is SD card IO. I can handle at least a dozen hits per second no problem though
Host my website (if I ever got any actual traffic it might be a problem, but since 99% of the traffic is me it's ok)
Various web scraping/archival tasks