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Ask HN: Most interesting tech you built for just yourself?

1901 points l2silver | 1 comments | 27 Apr 23 15:04 UTC | HN request time: 0.204s | source

Maybe you've created your own AR program for wearables that shows the definition of a word when you highlight it IRL, or you've built a personal calendar app for your family to display on a monitor in the kitchen. Whatever it is, I'd love to hear it.
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jo-m ◴[28 Apr 23 08:49 UTC] No.35738987[source]▶
I have a rail line right under my apartment, so I built a small computer vision app running on a Rasperry Pi which records each train passing, and tries to stitch an image of it.

It has a frontend at https://trains.jo-m.ch/.

Edit: it's currently raining and the rain drops are disturbing the images a bit.

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fransje26 ◴[28 Apr 23 10:18 UTC] No.35739464[source]▶
Really cool. They look like model trains! :-)
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dmd ◴[28 Apr 23 13:23 UTC] No.35741008[source]▶
Yeah! I've never seen trains so clean and modern looking in my life. They look like they came out of a futuristic toy set.
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1. 4ggr0 ◴[28 Apr 23 14:03 UTC] No.35741388[source]▶
They're swiss trains, I guess we have enough wealth to make sure that our trains are clean. The interior is also almost always clean, except early morning on weekends (drunk people).

From time to time I see a train with graffiti on it, but usually they remove such things very fast.