i'm working on rtk.
https://www.rtk-ai.app/
Ask HN: What are you working on? (September 2026)
541–550 of 773 posts
Re: Ask HN: What are you working on? (September 2026)
#542Working on https://increader.com an incremental reading platform that combines read it later functionality with annotations and spaced repetition. Supports web articles, epubs, pdfs and rss feeds with a lot of little things to remove distractions and keep you focused.
I built it because I wanted to see if there's merit to the idea of incremental reading[1] and it worked so well that it turned into the main way I read things now.
Re: Ask HN: What are you working on? (September 2026)
#543I've been working on a daily games platform called fribble - https://fribble.io/
It's a collection of daily games with some classics like crossword and sudoku, some geography games like draw the country shape and pick the country from a borderless globe, and a few more. Ten daily games in total.
Word Shift and Nine Grid are my the ones I enjoy the most. Would love some feedback!
Re: Ask HN: What are you working on? (September 2026)
#544Classical music concerts database. The interesting part maybe isn't what it is, but how it's done: I'm aiming for a fully automated database, where "crawlers" for the classical music websites are created and validated by AI. Rough idea: get a list of urls with classical music concerts -> send each one to a coding agent to build a crawler -> validate and run on an infrastructure for "free". Classical music is an ideal…
Great - that's what I was looking for when I lived in London! All that existed was TimeOut mag (on paper and online, but pathetically incomplete, more for tourists).
Re: Ask HN: What are you working on? (September 2026)
#545Fluir, a web app that improves Spanish speaking beyond A2
https://getfluir.app
I hit a plateau with my learning, having used Duolingo + tutor. It was only until I tried to read a book that I felt like I was making real progress. Highlighting words in Kindle, exporting them to Anki, then feeding back my progress to my tutor was fiddly and not a good use of my time. Also practicing my speaking once a day wasn't enough.
So I built an app to help me. This app will: 1. Generate Spanish short stories using Claude pitched to your level, narrated with ElevenLabs 2. Every word/phrase you highlight becomes a flashcard. Flashcards use spaced repetition - words you find difficult come up more often per review 3. Chat with Lucía - a turn based conversation who is prompted with the words/phrases you have saved down
You get a use of all the features before subscribing (1 short story, 1 round of flashcards, 1 minute with Lucía), then it's a 7 day trial.
Would love to get some feedback, especially on the AI conversation, as that's the most challenging part of the app I've found so far.
Re: Ask HN: What are you working on? (September 2026)
#546Still plugging away on https://flopper.io
Added models and pricing there recently too. Aiming to be a huge place for all GPU data when it comes to mathematical performance. Things like FP8 for AI inference etc.
Tempted to make the infrastructure a bit more sound.
Aside from that I'm working on https://solarable.org - which is aiming to provider understanding of solar panels before finding an installer and plotholes.app (https://plotholes.app) which is a consensus network for potholes as reported and determined by cyclists.
Re: Ask HN: What are you working on? (September 2026)
#547Convek https://convek.dev/
It's an API (first one) for soaring specific weather data, based on RASP, for paragliders, instrument makers etc.
24 sign ups and ~5 active users, no subscribers yet (one person paid for a month though!).
Along with widgets and daily emails for gliding clubs.
Trying to get every country but, waiting for some users to add another server (RASP is very compute heavy)
Re: Ask HN: What are you working on? (September 2026)
#548https://videofn.com
I like to make videos involving lots of kinetic text that is synced to audio but they always took ages to make. This was an experiment in ai assisted video editing with a strong feedback loop so the agent can self correct.
It's also my exploration into using local models and rendering to keep as much as possible on device. Over time its grown into something pretty useful so I decided over the weekend to release it generally.
Re: Ask HN: What are you working on? (September 2026)
#549[HUMAN-CODE] I'm building a video game. It's part Valheim, part Ultima IV: https://stravaeger.com/ You can play the demo in the browser now (mobile as well as desktop), but I'll be packaging it up for Steam soon. It's all vanilla javascript, html and css. No AI, no 3rd party game engine, no build system even, and just a couple external dependencies for things like networking that I didn't want to reinvent myself. It'…
Your game is good bro, I think there is a real audience out there for this game.
Re: Ask HN: What are you working on? (September 2026)
#550I'm building LinkBunny, a service where coding agents exchange backlinks. You can let your agents build backlinks for you autonomously. I'm manual approving registration now to avoid spam. $20/mth sub and no fees for backlinks. If you are using coding agents and craving for backlinks, I'll personally help iron out bugs/issues. Email me.
Link?
https://getlinkbunny.com (in profile too, for other info)