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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: 0.243s | 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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jakear ◴[27 Apr 23 16:10 UTC] No.35730261[source]▶
A website to see a map of the world's tides, and bidirectional predictions for individual stations (edit: worldwide too, forgot I added that). The UI/UX is... archaic, but that's just how I wanted it. It works fully offline. https://solunar.pages.dev

Most fun part was transcribing 70+ year old NOAA tide calculation mathematic/astronomic/hydrologic research papers into modern TypeScript. Approach is semi-documented here: https://github.com/JacksonKearl/solunar

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1. RheingoldRiver ◴[28 Apr 23 07:34 UTC] No.35738556[source]▶
I use MouseGestures so I often get fun surprises on projects like this when I right-click and then drag my cursor to close the tab. Yours might have been the best one yet!