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

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

#631

Kirby's Adventure for the NES, one of my favorite games, ignores your controller inputs sometimes. I dove into the ROM, figured out the problem and fixed it: https://www.romhacking.net/hacks/7595/ I'm currently hacking the SNES mouse into Sim City.

This reminds me of the person who fixed the infamous Atari ET game: http://www.neocomputer.org/projects/et/

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

#632
A bootable mini-CDROM that I would pop into two dozen computers in a computer lab after hours that would turn the lab into an OpenMOSIX SSI cluster and auto-eject the CDs. All I had to do to reset the lab is ctrl+alt+delete on all the machines.

I also built a CarPC back before we had smartphones that could do everything. I wrote some custom Perl software for it:

- An audible user interface that allowed a remote control, a keypad, or voice commands to speak-navigate a series of menus, to allow running programs, selecting music to play, etc. It was extremely low-latency, fast and clear, to allow very rapid navigation. No need to look away from the road, unlike every annoying car navigation menu I've ever used.

- A music interface to allow selecting playlists, shuffling music, pausing/skipping, etc

- A program to play the next of a pre-written instruction when approaching a GPS coordinate; basically, ghetto turn-by-turn GPS nav

- A wardriving interface to tell you when a new access point was captured and if it was unencrypted and high signal

- A video player hooked up to a mini monitor installed in the dash

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

#633
post #254

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.

Some cool tech there too - client side sqlite db over wasm, neat! :)

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

#634
post #254

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.

Reminds me of the 90's Lego computer game "Lego Loco"

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

#635

I'm slightly embarrassed that in terms of building personally relevant things, my proudest (digital) work is always shell scripts I use daily. Most of my personal projects are non-technical meat-space things like building with wood and the like. Here's some that I've open-sourced: - A git interface using fzf that works pretty nicely and is very composable. https://github.com/bigH/git-fuzzy - An interactive evaluator,…

I’m a long time user of git-fuzzy, thank you for that!

I am also grateful to hear about “interactively”, I always had to write some kind of half baked implementation, it’s great to finally have a defacto solution.

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

#638
post #254

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.

Have you considered getting a line scan camera for sharper and higher resolution images? I took some train scans with one: https://daniel.lawrence.lu/photos/

Incidentally I also built some tech for it: https://github.com/dllu/nectar but I need to update the readme...

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

#639
Right now I’m working on a heads up display using a pair of AR glasses and a pinephone. At the moment you just get the time and a battery level in the corner of your vision, but the interesting thing is the platform. Every hud app is just a Wayland client, and the apps get positioned absolutely on the screen by the compositor

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

#640
Does it count if you've built something for yourself that is now becoming an actual business?

If yes, then I started building a hand tracking based VR workout app back in 2019 using GodotEngine to get myself a bit of extra motivation to exercise at home.

In the meantime it's become an official app but I am still using it for myself very intensively ( unfortunately no longer using Godot )

https://app.xrworkout.io

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