Ask HN: What Are You Working On? (December 2025)

https://news.ycombinator.com/item?id=46215686

by mchaver • 7 months ago

21 52 7 months ago

news.ycombinator.com

What is everyone working on?

mmarian• 7 months ago

An AI copilot for LibreOffice Writer. My extension just got published in the LibreOffice marketplace 43 mins ago https://extensions.libreoffice.org/en/extensions/show/99471

slig4• 7 months ago

Puzzleship - a free daily puzzles website with the archives paywalled. Right now it has Logic Grid Puzzles and Zebra Puzzles. I'm pretty proud of the LGP generator algorithm and some experienced players also liked the way the puzzles are constructed. This is my first subscription site and it's been online for less than a week, so I'm learning a lot and trying to figure out the pricing.

https://www.puzzleship.com/

dolia• 7 months ago

Oh man, this is my jam. I remember seeing this kind of puzzles in a Martin Gardner's book. Thank you :)

slig4• 7 months ago

Thank you! Glad you enjoyed!

Will look up his book.

hallvaaw• 7 months ago

UkulelExplorer https://github.com/hallvaaw/UkulelExplorer - An app for exploring the ukulele fretboard with custom tunings. Because of its small body size and having four strings, people often think of ukulele as a toy rather than an instrument. I believe that by exploring and finding custom tunings, the ukulele can be a quite versatile instrument.

mchaver7• 7 months ago

I've been working on a digital math workbook. Currently the demo covers fourth grade math. There is a practice mode where you can select the skills you to want practice. There is also a customizable dashboard where you can setup your own tasks. There is still a lot of work to do with improving the UI, but I think it is a good start.

I am currently working on fifth grade math. My plan is to cover first grade math up to Calculus and High School Physics. I envision it as a companion tool for Khan Academy/Math Class/Math Books. It is inspired by Chris McMullen's math workbooks.

Check out the demo. No signup required. Progress is only stored locally. https://demo.numerikos.com/

slig4• 7 months ago

Are you planning on offering printable worksheets as well?

mchaver7• 7 months ago

Yes, it is a little bit further down in my todo list, but I think for teachers (and students who like worksheets), worksheets would be a nice feature.

shim2k• 7 months ago

Sente - a custom browser agent for QA automation http://sente.run/

mchaver7• 7 months ago

This is really cool. Can you describe more about the scenarios you define and how you manage them over time? I can imagine if you end up with a lot of them, then it becomes time consuming to perform all of the visual tests or handle the human-in-the-loop part.

I wonder if you could do some automated diffing between the scenario results. If they are pretty similar and they were previously considered in a good state, then you don't necessarily need a QA person to review it.

K0IN2• 7 months ago

Flotte, a ssh access management solution for hobbyist and small to medium-sized businesses.

We aim to provide a fast JIT ssh cert attestation.

With focus on: * making on/offboard users fast * efficient workflows (no need to lookup passwords for logins or sudo) * mitigate private key leaks (especially in BYOD/BYOK environments) * Help admins manage server access fast

GitHub(WIP): https://github.com/flotte-sh

mchaver7• 7 months ago

Your homepage https://flotte.sh/ is showing a Welcome to nginx message.

K0IN2• 7 months ago

We currently don't have a website (sorry), but we are working on it!

And thanks for checking us out :)

lucasfdacunha4• 7 months ago

Working on https://greatreads.dev/ A place to aggregate and find articles from developers' blogs. Right now, I'm building a submission form for people to submit new sources.

There is also a way to search for articles using vectors, it's called "Semantic Search". So basically you can ask, for example, "Postgresql and how to best optimize it." and it would search for articles touching that subject, or at least related to it.

Wondering about the best way I can add a weekly newsletter built on top of the content currently being ingested, and still looking for more sources to add to the database (let me know if you have any good recommendations).

bonniesimon• 7 months ago

I checked it out. It looks good.

mchaver7• 7 months ago

Nice job. The order options don't seem to work when searching.

lucasfdacunha4• 7 months ago

Good catch, something is definitely not right there. I'll take a look.

ml-2• 7 months ago

Doing something similar for a non-public project. How do you deal with remixing feeds, and the potential mix of formats (rss, atom, etc)? I need to create new feeds as well, and if its done by normalizing, sanitizing content, etc. I feel I misrepresent the original content, and probably breach the implicit license granted by syndicating via feed.

Probably very few creators care one way or another, as the links are going to the original content. Just interested if people had an opinion on the matter.

lucasfdacunha4• 7 months ago

It’s honestly a bit of a pain. I’m using a library to help parse different formats, but there are many custom cases to handle. Dates are a good example. I’m parsing more than a dozen formats, and there’s no real pattern in how sites display their published dates. Some blogs even use unusual formats that aren’t common anywhere else.

I try to avoid altering the original content as much as possible. I do need to sanitize and adjust parts of it to produce clean text on my site, but I’m careful not to change anything in a way that misrepresents the source. Only a few short phrases appear on GreatReads, and users cannot read the full article without visiting the original source.

techtalksweekly2• 7 months ago

that's a really cool project! I'm building something similar, but for conference talks and podcasts[1], but in a form of a newsletter.

I use semantic search ocasionally when building extra editions and use a sentence transformer with all-MiniLM-L6-v2 model.

How did you go about implementing semantic search in your app?

[1] https://techtalksweekly.io/

lucasfdacunha4• 7 months ago

I'm using a Postgres database. So when articles are ingested, I use the Gemini Embedding model (they have a great free tier) and save that in a vector column that is used later to do the search.

ekrapivin2• 7 months ago

https://inSolitaire.com

I'm building on an ad-free website with 50+ solitaire/puzzle games.

Gotten some feedback from HN already and now fixing things – basically rewriting the engine for the 4th time.

Hoping to add some hundred games more soon!

mchaver7• 7 months ago

Two thoughts on solitaire.

1. I don't like how if I already place an Ace and then reveal a 2 that matches it suit, it then automatically moves it over. While mostly trivial, it still takes a way one move from the player and automates it.

2. Would you be willing to expose the value that seeds the game? That way any particular game of solitaire is replayable or sharable with a friend.

ekrapivin2• 7 months ago

Thank you for the feedback. For first one I'm turning it off, this has been a piece of a feedback already. For the second – yes, as part of daily/winnable deal package in Q1 next year.

sakamotosan• 7 months ago

VERDURE is still a creative plant-generation sandbox where you grow and sculpt stylized trees.

https://store.steampowered.com/app/4069810/VERDURE/

brynet• 7 months ago

Making rent as an open source developer.

Attracting new monthly sponsors and people willing to buy me the occasional pizza with my crappy HTML skills.

https://brynet.ca/wallofpizza.html

division_by_0• 7 months ago

Refining my Svelte S&P 500 correlation matrix

https://cybernetic.dev/matrix

zarathustra333• 7 months ago

Working on a memory layer for AI agents, a fun project and lots of interesting design choices I need to make.

atrettel• 7 months ago

I'm working on a command-line tool for advanced full-text search of written documents. It works in a completely different way than grep, so it can do a lot of operations that grep fundamentally cannot like fuzzy searching and proximity searching. I needed something like this for my scientific research, and I'm glad that I have this capability now. I hope others find it useful too!

I called it Wosp for word-oriented search and print. See the GitHub page for more information: https://github.com/atrettel/wosp

duckerduck• 7 months ago

I'm building a Typeform/Google Forms alternative that integrates into existing applications and stores data in your own database. It allows you to define forms in JSON Schema or JSON Forms. Forms can be added or removed dynamically, and submissions are sent to your backend and in turn stored in your database.

Built using our full-stack library toolkit Fragno [0].

[0] https://fragno.dev/

WilcoKruijer• 7 months ago

I'm working on a meta framework for building "full-stack" libraries. I.e. libraries that bundle frontend hooks, backend routes, and a database schema into a single package.

This allows library authors to do more, like defining webhook handlers and (simple) database operations. The idea is to move complexity from the user to the author, making integrations easier.

I think libraries being allowed to write to your database is a pretty powerful concept, and can enable a number of interesting use cases.

https://github.com/rejot-dev/fragno

madsmadsdk• 7 months ago

I'm working on https://www.root-dir.com - a command-line community with public profiles and an IRC style chat.

You can't use this without having at least basic knowledge of the command-line.

Currently in closed beta, but sending out new batches of invites frequently.

marchypolite• 7 months ago

I am working on https://ui.telezen-ai.com it's a SaaS landing page template built in nextjs and Shad Cn. it's to give people a good starting point when building their own landing pages

endriju• 7 months ago

Unpark - Domain Activation Engine. I built this to solve my own problem of having 30+ parked domains. Instantly generates and deploys a simple AI website to any parked domain. For domain hoarders who aren't web developers.

[0] https://unpark.ai

daltont• 7 months ago

An exercise in simulating sports fandom on a map. To do things like simulate expansion and relocation of franchises.

The idea of turning this into a simulation game is a possibility hence "warz" in the name.

It is a bunch of Jupyter notebooks being served by Voila. The "Blank.ipynb" one is more interactive but the ergonomics need work.

It is running free tier hosting so it could swamped if enough people use it simultaneously:

https://sportwarzsim-production.up.railway.app/

https://github.com/daltontf/SportWarzSim

There are instructions to run locally via Docker in the README.md

ml-2• 7 months ago

Want to put local history on a map, so when I go somewhere I could ideally just open this webapp and immediately get presented with cool or interesting history that happened close by.

Currently spending time establishing relationships with historical societies, as I really need them to contribute points of interest, and stories. Many of these societies are run on a voluntary basis by 70+ year olds, so it's a long process. Getting some good responses eventually though, so it might actually go somewhere, just a lot slower than I want.

Also still doing https://wheretodrink.beer, but haven't added anything of note since playing on this other project.

And react2shell was a fun time

openfret• 7 months ago

I am working on a web-based guitar RPG

You can fight monsters, craft, and conjure magic by playing real notes on your actual guitar. Web Browser Audio API handles pitch detection.

Basically, trying to make guitar practice a bit more fun by adding gamification.

Free demo: https://openfret.com/game/demo

techtalksweekly2• 7 months ago

I'm working on Tech Talks Weekly[1] which is a free weekly email with all the recently published Software Engineering podcasts and conference talks in the past 7 days.

Every week I pull all the new talk recordings from hundreds of conferences (Devoxx, KubeCon, PyCon, QCon, LeadDev, JSNation, and many more) and even more podcasts podcasts. I feature the ones I think are must-watch with short summaries written by me, then include a list of everything else uploaded that week.

It started as a personal project to fix my own messy YT subscriptions and RSS feeds and now 7,500+ people read it.

I also publish extra editions from time to time like “The Most Watched Talks of 2024” which made it to the HN front page.

If you watch software engineering conference talks or listen to podcasts, you might find it useful. I’d love to know what you think!

[1] https://techtalksweekly.io/

fiftyacorn• 7 months ago

HN should start a "what would you like to work on?" where people can post projects they want to start, and maybe where they are uncertain to start - then can get advice

mchaver7• 7 months ago

You can do it. Just create the submission with "Ask HN: What would you like to work on?" and add some details about the kind of things users should discuss there.

nicbou• 7 months ago

I got access to around 30,000 Berlin apartment listings from the last year. The end goal to help foreign apartment seekers rate a listing’s price, size and location, and to give people realistic expectations. For example if your search criteria returns two listings per month and the chance of getting the flat is 1:100, you might rethink your approach.

The first release will be a map of median rent per square meter. Simple stuff.

udit99• 7 months ago

https://www.gitori.com

Games for Guitarists.

huncyrus• 7 months ago

I made a small open-source JavaScript DTO class for projects that can not upgrade to use TypeScript: https://www.npmjs.com/package/@huncyrus/simple-validated-dto

phernandez• 7 months ago

Basic Memory - an MCP server that creates a knowledge graph from your conversations. Chats become markdown notes, notes inform future chats.

Local: https://github.com/basicmachines-co/basic-memory or hosted: http://basicmemory.com

shelika• 7 months ago

An AsciiDoc parser and a few converters (html, manpage, terminal).

https://github.com/nlopes/acdc

Still lots to do but I've been having a lot of fun.

gillyb• 7 months ago

https://audiopea.com - Inspired by photopea, I'm building an online audio editor. Trying to do everything myself and make it all run on the client. Not too far along, but I plan on continue hammering at it...

7237139812• 7 months ago

Scam SMS and AI detection from screenshots, primarily for South Africa - hoping to make it available via WhatsApp soon.

No real monetization plans yet - just experimenting / improving the detection at the moment.

https://legitornot.co.za

XCSme• 7 months ago

Contracting work doing n8n AI automations.

My main personal project is a self-hosted Hotjar alternative: https://www.uxwizz.com

pmonte• 7 months ago

I'm building Sentialytics (https://www.sentialytics.com/), a tool to help managers improve team performance by monitoring well-being via short, weekly surveys.

It's built on three principles: - Simple Listening: Short, anonymous weekly surveys that take less than 60 seconds for the team to complete. - Actionable Insights: AI analyzes comments to identify recurring themes, so you don't have to read hundreds of open-ended responses. - Performance-Focused: The goal isn't just to measure 'happiness', but to provide suggestions that help managers make better decisions.

I was inspired to build it after my own experience as a manager, where I realized I wasn't monitoring my team's well-being closely enough and it was starting to impact our performance.

It's still very early days, and I'm looking for a few first users to give honest, brutal feedback on the concept and the product.

Any feedback on the idea or the product is appreciated.

Godefroy• 7 months ago

I'm experimenting with AI-moderated interviews with my SaaS https://raconte.ai/ and the open source lib I created for it: https://micdrop.dev/

Micdrop is already used by other products to implement robust voice conversation with AI in webapps. Cheaper and more controllable than realtime GPT.

Feedbacks are appreciated!

rokoss21• 7 months ago

I’m working on a deterministic execution layer for AI systems.

The goal is to treat LLMs as constrained components inside explicitly defined workflows: strict input/output schemas, validated DAGs, replayable execution, and observable failure modes. Most instability I’ve seen in production AI systems isn’t model-related — it comes from ambiguous structure around the model.

We’re exploring this through a project called FACET, focused on making AI behavior testable and debuggable rather than probabilistic and opaque.

Early days, but the direction is clear: less magic, more contracts.

Ask HN: What Are You Working On? (December 2025)

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