Live data from Hacker News

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

news.ycombinator.com

411–420 of 1001 posts

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

#411
I built a command line app that will execute a variety of different strategies for my crypto holdings. To be clear, I'm not a degen trader, it's more about things like DCAing and rebalancing.

Eg. "Divide my current USD balance into 5 levels of descending orders where the first order is at 5% discount from the current price and every level after that is at a 10% discount." Set it and forget it or run it again with different parameters if the market changes.

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

#412

My MIL is 93, and the only tech she can really deal with is turning on the radio and TV and changing channels. She is fond of music from old classics (from the 60's and earlier), so I hooked up a Raspberry PI with an FM transmitter and created her own private radio station. She tells me what songs she likes and I create different playlists that get broadcast on her station. It preserves the surprise element of radio,…

This made my day, thank you for sharing. Such a sweet thing to do.

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

#413
A software developer and football (soccer) fan who lives in an antipodean time zone, I enjoy watching games on demand the morning after they occur. Apart from watching the games of the team I support, I like to watch one or two of the most entertaining games in any given week, but score spoilers absolutely ruin the experience for me.

So, I created https://laterball.com: a web app the algorithmically determines the best games of the past 7 days without score spoilers, to let me (and you) know which games are worth spending time watching. There was also an associated twitter bot at https://twitter.com/laterball which occasionally tweets when there's been a high-quality game until the recent Twitter API changes.

Technical stuff: the back end is a Ktor server hosted on a linode instance which pulls statistics data from an API to determine the ratings. Factors used to determine ratings include goals (number, timing, swings in score, comebacks), xG, wins or draws against the odds, cards, and a few others.

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

#414
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.

This is really impressive. Very nice work

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

#415
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.

I live on an airport - Id really like to do this.

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

#416
I needed to build a Wordpress site for user docs for a company last year. Couldn’t find a good solution :(

I created a React based version of Wordpress for developers.

I turned it into an open source framework so that other people can use my work and build on top of it. It comes baked with Next.js, Tailwind, and a bunch more.

It’s currently a work in progress, but I’ve been receiving great feedback from the dev community.

https://www.elegantframework.com/

https://github.com/elegantframework/elegant-cli

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

#418
My friends and I used to watch movies almost every night online during COVID and to decide on the movie I created a polling website that pulls information from TMDB. It was really useful because we could see the movie description, genre and length right there while voting instead of having to google for every movie title. I planned on adding new voting methods as well instead of majority vote like ranked voting, a movie randomizer that the chance a movie wins is based on how many votes it has and others. Unfortunately, we no longer watch that many movies together so the incentive to add those features decreased.

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

#420
A toolset for learning Japanese with focus on listening comprehension. Most resources suggest a "writing systems first" approach, which seemed counterintuitive to me. So I started coding my own tools 10 years ago. First, a small spaced repetition system for vocabulary connected to forvo (pronunciation database) and lateron an addon for Anki (popular spaced repetition system). The addon is made for studying with movies and includes a dictionary and a parser for converting the original script to something simpler.

In retrospect, it was totally worth it: I reached a decent amount of fluency in listening comprehension and used the tools to create a Japanese course for others, which became popular on ankiweb: https://ankiweb.net/shared/info/911122782

Post reply on HN