alt Hacker NewsAsk HN: What Are You Working On? (December 2025)
What are you working on? Any new ideas that you're thinking about?
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A purely functional and asynchronous effect system for F# which started as my thesis in university. It's inspired by ZIO and Cats Effect for Scala and has its own fiber system for scheduling functional effects.
I don't have much time to work on it now a days, but I try to keep up it as much as I can. I also don't have ambitions about getting a lot of users (if any), but I really enjoy working on it :)
I’m building an open-source project to reduce GitHub Actions CI costs by running jobs on self-hosted runners on owned hardware. The motivation is to fill the gap between local workflow execution by projects like https://github.com/nektos/act and self-hosted runner setups on the cloud. My team’s requirements are simple and we don’t require all the features. We hope to keep ops simple and save costs. Any efficiency boost due to caching will be A bonus
Have been working on an app to capture thoughts and to make sense of them with a timeline view. Have posted the first version here and got a lot of suggestions so that we continue working and now release an open testing version to play store. If anyone interested in trying please visit
https://play.google.com/store/apps/details?id=com.upbrew.tho...
The fastest knowledge base for software teams, Outcrop.
A lot of teams enjoy using Linear for product management but still have to use Notion and Confluence for knowledge management. I’ve built Outcrop from the ground up to be fast with much more reliable search and realtime collaboration.
Hundreds of teams from startups and major companies have signed up for early access and many have made early commitments to support the development of Outcrop.
If your team would be interested, I’d like to hear from you!
imed at outcrop.app
Continuing work on my AI game development agent for Godot, Ziva[0]. Basically, big games are made in game engines, and game engines are hard.
Right now you can use it to chat about and modify basic things in your game; it automatically adds open scripts, scenes, and assets to your context, and uses around 50 MCP tools for editing. Currently working on refactoring the agent loop to use Claude Agent SDK so we can piggyback off the Claude Code developer experience and focus purely on the tool and integration side.
[0] https://ziva.sh
https://saveam.app & https://planam.app (all WIP)
Basically building a read-it-later app and a work todo-list app to my personal taste.
http://mikeinnes.io/posts/advent-2025/
I've been working through advent of code using my own little compiler/language. It's in such an early state that some creative problem solving is required, not to mention the compiler bugs! But I'm very pleased to have it running interactively on my blog like this – I want to work towards some bigger notebooks in the style of explorable explanations.
I’m building a web application to catalog your guitars and amps and pedals and record each time you service them and when you bought or sold them. It’s a free service and I’m looking for BETA users to try it out. I switched up the tech stack and went with Rails with minimal AI assistance to go back to feeling like I did back in uni when I was building applications for fun and had to figure things out by trial and error. It’s been nice switching gears and doing things my way.
Take a look at https://pickpedia.app
I'm working on an open source swift app that sends anything you circle in a pdf or epub to AI for an explanation. Currently it works with Gemini but I'm going to allow users to add their own OpenAI compatible endpoint soon.
I think it works best on Mac and iPad. Available on TestFlight and GitHub.
https://github.com/syousif94/EasyReader https://testflight.apple.com/join/1KvY5cwC
I finished the library providing all features of a multisig file signing scheme. With that it was easy to develop a cli tool. And now I'm looking at developing the server component. Looking forward to share a complete solution! Git backed, decentralized, no account creation needed (auth by key pair), open source and self hostable!
Current development at https://github.com/asfaload/asfasign/
I run a small logistics platform called Twinjet that is used by mostly food delivery courier companies. One of our main features is parsing emails from food ordering platforms in order to automatically add the delivery job to the company's dispatch board. These parsers need constant maintenance since the ordering platforms change their email formats all of the time.
I'm putting the finishing touches on an AI parser that I hope to ship after the new year. I'm getting very consistent results from Ministral-3b model, which is super light weight.
It's an AI-native email client. Launching soon!
My goal is to help people get done with email faster, so that they can get back to doing other stuff. A lot of the features are designed around this goal: unified inbox, AI summarization, AI email drafting, etc.
Some of these are table stakes but I think there's also an opportunity to significantly revamp how email is done in the AI age. Imagine having your own personal assistant that goes through your email and surfaces the highest priority things that you need to know automatically.
Built a daily puzzles site at https://dailybaffle.com.
Working on a new puzzle for it as well as the mobile app, which is coming for iOS and Android around the holidays.
I'm working on hand-building mugs. Throwing clay around in a studio, etc.
But I'm also thinking about it as a product manager based on my tech experience. Looking at what people like in mugs, creating templates to exactly size the mugs to people's preferences, creating re-usable molds to put repeatable components together, and taking detailed notes on exactly what I am doing in-studio to create a repeatable, reliable process to create a product that will sell.
It is going poorly so far, but each iteration gets better, so hopefully I have everything down before I end up with 100+ unsellable mugs in my kitchen.
A new vertically integrated operating system and computer for the next generation.
Working on the native language and OS currently!
I’m working on Yomu, an iOS app for reading Japanese text with adjustable furigana.
I’m learning Japanese myself (recently took JLPT N4), and I noticed that full furigana makes me rely on readings instead of actually reading kanji. Yomu lets you hide furigana for kanji up to your level and keep it for harder ones.
It’s offline-first, supports importing text from anywhere, camera OCR, and a fast dictionary.
Two things currently:
1) TrickTrapper.
Backwards compatible verified phone calls. Android version is in testing with friends.
2) Katalib.
We have about 1600 books or so at home, there's no chance I'm going to scan ISBN codes of all of these. I've tried four times and got way too bored after the first 100-200. The solution? Take a photo of the bookshelf, send to Claude for text parsing and series information. Then some UI etc around that.
It's working, I just need to start testing it myself and a few friends have also asked for access.
I’ve been playing with a Arduino compatible Uno R3 and a WS2812B RGB addressable LED light strip. I cut a 3m strip into 5 strips that are 28 LEDs long and soldered the lights together to make a display. I’ve been working on coding a font for the lights and can display about 10 different characters currently. It’s my first time really doing any sort of embedded work and my first time actually successfully soldering. Now that the thrill is gone since I solved this challenge I was thinking of making a remote control snow plow.
https://github.com/AvitalTamir/termsheet
termsheet - a Google Sheets client for the terminal
It is a workflow graph automation site (drag and drop and connect nodes), but is a toy and only allows a local user and local models (both transformers.js and tensor-flow mediapipe), so costs me nothing. Mostly text stuff at the moment, but working on a slate of image stuff this week, may get to audio and video as well, we shall see.
Low Touch Advisor The dream: “click a button to get a senior engineer added to your slack.” It’s a side hustle for awesome engineers.
My first customer has me looking for e6+ or cloud architects to be paid advisors to review cloud migration RFCs. (No coding) Comp is $1k per RFC you review. There are at least 18 RFCs per month to be reviewed.
Here’s my site I scaffolded for this: https://www.lowtouchadvisor.com/
My one-person project Zigpoll [https://www.zigpoll.com] I've cracked the eCommerce market (1M ARR as of a couple days ago) but want to spread out more broadly into other verticals (SaaS, Hotels, Restaurants, Home Services, etc...) to reduce sector risk. If anyone is cooking something up please reach out and I'll be happy to hook you up with the service for free. [[email protected]]
I've started fund raising efforts for a project related to accelerating adoption of authenticated encryption between mail servers (it's time to move past opportunistic TLS).
I also launched a web browser extension last week, Blog Quest, which has some great early adoption numbers that exceeded my expectations. When I can find some spare time I'll start fixing up some of the early feedback/feature requests.
Checkout Sugar - A Dev Team That Never Stops.
Autonomous AI development for Claude Code. Delegate tasks, Sugar executes continuously—building features, fixing bugs, shipping code.
https://sugar.roboticforce.io/
https://github.com/cdnsteve/sugar
Pretty pumped, 22 stars and growing!
https://diverticulitistracker.com/ I tried to vibe an app to track my diet and symptoms during a diverticulitis flare up.
Most recently (yesterday), vibe coding a better interface for Roblox screen time: https://github.com/astrostl/blockblox . Claude Code crushes, and I'm preferring Go for everything I can to take advantage of typing, quality ecosystem, and distribution. Still need to implement the QE side on this as I have on other things.
My "test prompt" for AIs used to be to create an extension to manage tabs. After a year and with MV3 the extension I used to kill duplicated tabs died.
Now this one became my favorite extension.
https://github.com/jeanlucaslima/ato
Warning: current version is maintained only through claude code, even the README. Feel free to criticize/send suggestions.
I'm in the progress of open-sourcing (and extending) my static-site generator "CMS" (with big air-quotes).
The idea is to add dynamic content, i.e. reservation tool, to what is essentially a statically hosted web page.
Demo: https://astro-booking.pages.dev/booking/
A bit more details: https://www.nordstroem.ch/posts/2025-01-15-to-the-stars.html
A personal photography website for myself using a bunch of AI services to enable automatic tagging, color extraction, and hopefully some novel discovery methods.
I really like the color discovery features - I wanted something like this to exist when I was trying to find prints for my house with specific color harmonies.
Little projects for December Adventure (https://eli.li/december-adventure)
- Just finished forking an nvim keycast script for TUI demos: https://github.com/wong-justin/showkeys-noplug
- Started making a Roku app (https://wonger.dev/nuggets#n299)
- Drafting a year-in-review post for my website
- Drafting a book review for "Programmers at Work"
Working on an iOS/Android app that lets gamers of all flavors connect with each other.
The main selling point of this app is that I do everything to let you continue do what you're doing while the algorithm search for other players. You receive a notification when a group is found or when a player is found.
Its not out yet ! The beta will be released in less than two weeks !
We have a website https://jynx.app/ If you want to leave feedback there is a form for that
For a fun project; rejuvenating a 1978 Chess Engine https://github.com/billforsternz/zargon. It's the second time I've worked on the same engine. The first time I got it working nicely on modern machines, running four orders of magnitude faster than in in 1978. This time I hope to get it running much faster than that. I found a bug in the 1978 Z80 assembly the other day. A blog post "Fixing a 50 year old bug..." or similar suggests itself.
I’m working on a community-driven website for finding local deals, especially happy hours, in Seattle, Washington: https://seattlebardeals.com/. I launched last week on Seattle Reddit and got a lot of positive response. The long-term goal would be to have something like this in every city, so when people are new or are just visiting they can find fun things to do on a budget
https://github.com/rush86999/atom
Marketing line: Atom is your conversational AI agent that automates complex workflows through natural language chat. Now with Computer Use Agent capabilities, Atom can see and interact with your desktop applications, automate repetitive tasks, and create visual workflows that bridge web services with local desktop software.
work in progress
I've been working on Mukbang 3D for the past year and a half—an iOS app that converts food videos into interactive 3D models using photogrammetry. Record a short video of food, and viewers can rotate/zoom/explore it while the video plays.
I recently added pose tracking of the 3d model so I can overlay 3d effects onto the underlying video.
Here's a demo: https://mukba.ng/p?id=29265051-b9c7-400b-b15a-139ca5dfaf7e
I'm a product designer with no training in development. I've been hacking together a ridership data analysis platform for public transit planners using Claude Code. The data is all fake generated right now for King County Metro routes, but it pulls real GTFS for the route / stop information. AI coding is making things possible that I never dreamed of until recently - glad to be learning these tools.
Building https://canonicalschema.com/, I started with a simple CSV viewer because none of the existing online tools supported large files or provided flexible column statistics and filtering to easily understand the data. My plan is to grow it into a full application where users can more easily manipulate and analyze CSV or spreadsheet data.
Finished db compression in special 3D slicer software for a new type of metal printer, and designed a fully parametric large motion-platform.
Also, assembling the PCB for some custom 1U rack hardware. Added a pi5 header to the debug PCB for automated component testing.
Restructuring fabrication options for several hardware components due to trade issues. =3
"So long and Thanks for all the Fish" ( Douglas Adams )
I am working on a website called Nexa Access as part of my new personal business venture. I have developed the website to focus on industrial door hardware and related products. I have taken new steps to provide services within the Turkish market.
the last few weeks I've been working on a directory for GenAI tools for marketing. It's hard to keep track of which tools are launched almost every week now and which are relevant for which part of the job; We got inspired by the Lumascape and a few other similar initiatives:
Currently a side project.. looking for feedback or ideas of improvement; and if it picks-up I might implement them. List has been manually curated but I've used some automations to get all the relevant fields.
In terms of how I've built it; I've vibe coded the app with Replit (also hosted); Strawberry + Comet for scraping and structure output + Brandfetch in the end for logos; Used also Claude Code as sparring partner for some tasks.
I'm working on a graph representation of complex data flows through a large organisation. The graph looks like crap, partially because hierarchical dagee graph layout algorithms apply a naive way of removing cycles that ruins the shape of the graph.
I've figured out a better way to remove cycles that preserves the shape of the graph in a way that works well for our purpose. Now I just need to figure out how to minimise edge crossings and line up nodes in such a way that it's more immediately obvious how the data flows between different systems.
Working on cargo like tooling for cpp. It just let you jump start a project for different build systems(vcpkg, bazel and meson). I am also planning to bring CLion features build on docker, ssh to cli with tui setup. Docker side is close to complete working on ssh for now.
HALUD YOUR HORSES is a small containerized development workflow designed to reduce exposure to supply-chain attacks in the JavaScript and Node.js ecosystem. Every project runs inside an isolated container with its own node_modules volume. Nothing from npm executes directly on the host machine. The tools are simple shell scripts that create, enter, and fork project-specific development images.
Working on building an investment assistant backed by real time data. ChatGPT and Perplexity finance are amazing, but all of them are based on web search data only, which is a big limitation in finance since realtime data is important.
We have an agent that has access to almost every data point you can think of in the stock market (as much as we can get), which gets leveraged before answering.
And we also figured out ways to build amazing charts in between answer snippets, which looks very cool. Investors are usually very visual.
I’ve been working on Pixie, a platform to employ and track your kids for real work; for families with a business, it helps reduce tax burden and fund a child’s Roth.
I’m actually an anesthesiologist with some 1099 income, built the platform myself because my kids help with my side projects, and have since onboarded CPAs who now offer it to their clients. It's been a fun journey!
I know blockchain isn't exactly popular around here. Nonetheless, I've built a DAO where voting rights are tradable assets.
I recently released Blobcache v0.0.2. https://github.com/blobcache/blobcache
Blobcache is a content-addressed data store for holding application state, and buiding E2EE applications. This most recent release includes a git remote so you can push and fetch Git data into and out of Blobcache.
College basketball + football analysis tools. I rank all the teams, players, coaches… everything! The gui is all open source. I am working on creating a fantasy system, for people to create leagues and manage them etc
I’m working on Vocabuo (https://vocabuo.com/), a vocabulary-focused language learning app.
Two main differences between this and other Anki-like apps: 1) The words you learn are from YT videos, websites and ebooks you import in the app. 2) The flashcards are optimized specifically for learning vocabulary - cards automatically get audio, images, multiple sentence examples, words definitions etc. It can also create fully monolingual flashcards with just definitions or the words in dialogs.
My biggest flex is that I have users who have done more swipes than me (over 100,000).