alt Hacker NewsAsk HN: What Are You Working On? (April 2026)
What are you working on? Any new ideas that you're thinking about?
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Working on testing and monitoring agent-readiness of CLIs with www.cliwatch.com, some interesting challenges in building test suites and analyzing data :)
Been rolling around from project to project this past month.
A SSO application in rust(not public)
A DNS for a dream project of mine which is a hosting provider company like digital ocean but in Scandinavia(not public).
A code hosting site for said hosting company called bofink(not public)
Ansible playbooks for applying database patches that can resume and create schemas etc, based on an internal tool from a former job. This is public and available on my github if anyone wants to look at it not linking it because there are way cooler projects here.
I recently built Cranki [0], a free little PWA that generates crosswords using your Anki flashcard lists. It's aimed at language learners (who find flashcards boring and crossword fun!).
To be honest I built it just for me and then decided it might be useful for others.
It's all local, no server, no database, etc. Mobile and desktop friendly.
Bid-Euchre.com (https://bid-euchre.com/) - If you have ever played Euchre this is a bid based way to determine suit. A lot of people in my home town play it. Just hit 5k completed games.
I have decided to put my GAS behind me and focus on truly learning one musical instrument, the MPC Live III. I aim to learn all the features and come up with several workflows at which I become fluent. The goal is to enable me to create songs without having to worry about constantly figuring out how to do something.
A 3D cluster visualization of S&P 500 and NASDAQ-100 markets. Created with Svelte and Three.js.
I am working on https://github.com/xi/xiio, a minimal async runtime for python. It is mostly feature complete with a fraction of the code of asyncio or trio. It is great fun to get into low level stuff and hopefully it helps me to better understand the finer details of async programming.
I'm working on https://blunders.ai, a chess improvement app. It uses a chess engine + AI to analyze your games, generate commentary, improvement plans, and targeted puzzles. Still in beta but I'd love any feedback!
Coupon code HNAPRIL26 if you want to give it a try.
Let's see; I keep so many projects going concurrently that I have to go look through my git history :)
I'm presenting at LinuxFest this year, so I'm currently in the process of wrapping up my slides for that. They're turning out ok; I have had to resist the urge to have AI write them for me, since they has a tendency to make everything feel soulless.
I maintain a fork of the main MiSTer executable [1] because of some disagreements with how Sorg runs the project and because I want to reduce the risk of saves being corrupted. Now I'm trying to come up with an automated way to monkey-patch the upstream changes so I can apply my changes on top. I have been experimenting with putting something like Claude in a Github Actions to handle this, but I haven't nailed down anything I'm super happy with.
I have been on a quest to find the source code for the old Digital Research Concurrent DOS. It's taken a few turns and I've been blogging about it: https://blog.tombert.com/Posts/Technical/2026/03-March/The-Q...
Because I have to accept the fact that I may be unsuccessful with finding the source to Concurrent DOS, I have been learning how to do reverse engineering with Ghidra if I ever want to see even a facsimile of the source code. Once I get competent enough with that I want to play with the MCP for Ghidra.
I have grown tired of people committing AI generated code, so I've been working on a library (written by my own fingers) that allows you to "assume" certain functions exist and have AI generate it for you, and use aggressive memoization to avoid it being too expensive. I'm working out the kinks and trying to make it more modular and flexible and deterministic, but I think it would be kind of neat. It's Opus doing the real work, of course, but for example I told it to `assume` that there existed a symbolic differentiator function that took in a string and did a derivative with respect to x, and then another function that could take in a function that took in a string of a polynomial and made a regular function out of this; basically assuming a very light version of Mathematica.
I think that's basically it for now.
I’ve started moving off WordPress to Yapress. It’s a Git-managed static setup with a migration script, though I haven’t run the full migration yet. Right now, I’m testing the setup and validating the workflow.
The trade-off seems reasonable so far. By going static, the main thing I lose is comments.
The project is still in progress, but I made solid progress over the weekend.
The project is here: https://github.com/yusufaytas/yapress
Tiny platform for app https://github.com/blue-monads/potatoverse
Working on https://www.nichess.org/
Nichess is a game like chess, where pieces have special abilities and health points. This allows for much finer balancing and many more variants compared to the original chess. It will take some time, but it will become great eventually.
I've been vibe coding a cross platform desktop app targeting bird photographers, that uses photo metadata and vision ML models to generate an eBird checklist formatted CSV for importing. It can detect and classify many birds in a single photo as well as individual birds. https://github.com/jkanethird/rackery
We are working on Entangle - https://entangle.cloud
developing AI agents that are easy to integrate in to websites, based in Europe and all data stored and processed in Europe to complying with regulations.
Looking forward to collaborations, and happy to talk with anyone would like to collaborate with us
The most recent project I’ve been working through has been a tool for JSON query evaluation and debugging [0] inspired by how easy regex101 is to use.
I couldn’t find any that were as nice or as powerful to use for writing JSONPath queries, so instead of spending an hour crafting and testing them manually, I spent >40 hours building this tool to save myself half an hour.
https://dmarcdefender.io. DMARC service focused on api/integrations. Currently thinking about (1) writing an ml classifier to classify sources, and (2) using rag to automatically generate spf/dkim fix advice for different sources.
Recently I have been doing a modern Lotus Agenda clone as a native iOS app. I have been implementing a custom CRM using that platform.
Also, Arch Ascent, which is a tool for evolveing microservice-heavy architectures.
https://github.com/mikko-ahonen/arch-ascent/blob/main/doc/de...
I built my own fun t-shirt brand called devopsicorn, no AI used here, I worked with a graphics designer from Spain: https://devopsicorn.com
Fun project playing around with print in demand and Etsy. Now wondering why Etsy became so popular while being tricky and inflexible to use for the seller :-)
Side project to generate good-looking programs for recitals and concerts: https://concert-programs.projects.jaygoel.com
For people who use Fora for travel, a tool that uses AI to create google calendar events from travel itineraries: https://itinerary.projects.jaygoel.com
We're building a repairable and fireproof e-bike battery at https://infinite-battery.com :)
I coded a visual novel/adventure game framework in pygame. Pretty much just to see if ai could handle a full project.
Eventually I got scope creeped into a full game with branching stories, item crafting, and a custom cutscene engine...even Trained a model for a few specific art assets.
Still doing https://plannotator.ai
I use it daily and so do others, for - better UX, feedback, and review surfaces for ai coding agents.
1. Plan review & iterative feedback.
2. Now code review with iterative feedback.
https://fablesandfriends.games
It's still VERY much in development but I'm building a site that allows people to find TTRPG games that are suited to them AND includes a suite of tools for both GMs and players in said games.
Players will be able to showcase characters they're playing or have played and GMs can manage campaigns (scheduling, notes). I'm a D&D player but I'm trying to make it system-agnostic
Working on figuring out onboarding for my coding tool. For someone who has been baked into building I'm struggling to put myself into the position of a new user just landing on the website. What features do I highlight without overwhelming them?
Any advice in this arena would be greatly appreciated.
I (codex) made a plugin for stremio to stream my collection from real-debrid. I tried existing plug-ins first and non was working. Just prompted chatgpt to refine my initial specs, and asked on another session to build that. And later used codex for the last mile. Nothing fancy though and nothing can be particularly useful to others but damn it was too useful to me and my wife.
https://agentskillsfinder.com/ This is the website I am working on. My goal is to make agent skills searchable, installable, and usable, and to add the function of organizing the workflow of multiple agent skills.
The toolbox for anxiously attached people, like myself: https://www.attachedapp.com
Most iOS/Android mental wellness apps are trying to be everything for everyone, ie general AI journaling or meditations.
By niching down, we can build the best experience end-to-end for anyone that resonates with these particular emotional challenges.
I believe soon a day will come when the agents will chat with each other to get things done. Agents running on different machines, behind firewalls, on phones, laptops, servers etc will all want to chat with each other.
So there is going to be a need for Instant Messaging for AI Agents - Launching soon. https://agent-socket.ai
I’m working on https://hilogame.cc It’s a word guessing game based on binary search. Only having around 10 users for now, but hope more people will find it fun.
Turns your project's GitHub release notes into user changelog that your users actually want to read.
I'm working on a local desktop app for inventory and production management: https://kitted.site
It includes bill of materials, purchase/production orders, "can I make n?", stock takes, multiple stock locations, and barcode scanning. It's aimed mainly at small business and makers for the time-being, but still allows multiple users to connect over the the local network.
Adding unit tests to a game for Game Boy Advance.
https://medium.com/@lmy/adding-unit-tests-to-a-game-for-the-...
Deploy to your own AWS account with minimal config!
- Any containerized app, uses Fargate (no Kubernetes)
- Heroku-like CLI tool with instant console sessions
- Set up SQL/Redis instantly with Heroku-like add-ons.
- Autoscaling, preview apps, audit trail, release approvals.
I’m working on a mobile app called Dream Chimp.
It’s a preset editor for UAFX Dream ‘65 pedal that I decided to build because I was so frustrated with the stock app.
If you’re a Dream ‘65 owner please check it out!
Podcast and RSS reader
Several other things, a CAD/CAM kernel with a Blender based frontend, a possibly novel strange attractor worth publishing, a git/CI host, an AI/LLM/VM cross platform workspace manager / IDE, shared multiplayer terminals in Minecraft and Godot
A cyberpunk 2077 inspired Tower Defence game https://github.com/XEonAX/TowerPunk-CyberDefence
I had already developed a tower defence game without AI long time back.
Wanted to try my hand at guided vibe engineering and see how faster was it.
PricePush (pricepush.app), automating localized pricing for mobile apps. Calculates PPP-adjusted prices for 190+ countries and pushes them to App Store Connect and Google Play in one click. Built it because managing prices across 175 Apple storefronts for my own 8 apps was taking entire weekends.
I'm training a latent diffusion model on weather radar data to predict short-term storm behavior. Decent results so far on downscaled data at +30min, training a full-res model at +1h and +2h horizons now. Excited to see how it does!
Codeboards connects to GitHub, Stack Overflow, LinkedIn, and HuggingFace to generate a professional developer profile that updates itself. Your commits, contributions, and reputation — finally in one place. https://codeboards.io
I'm building inspection software for various industries that are stuck with terrible pre-2010 software, or just pen and paper. Using AI where it makes sense, but not forcing it on users. Already have 5 users trialing the software, they're helping shape the product.
Very fun project, launching this week publicly in the app store.
I've been writing about interesting books and papers I read for a few years now. I wanted a nice, simple interface to point people to as a "hub" for recommendations that's compatible with a static site.
Here's the MVP interface: https://bcmullins.github.io/reading/
I appreciate any feedback. Hope you find something interesting to read!
I’ve been building the next generation of scam detection products; isthisspam.org. So far, the homepage took has been getting mildly successful, trying to build offline detection with iOS app now capable of offline detection, working on new ideas to market the tool.
I've been hacking on gaffer (https://gaffer.sh) as a way to learn and explore agentic development. It's been fun and I've even picked up a couple customers.
I've forked Transmission, and I'm trying to implement mutable torrents. Some partial success between two hosts (seeder and leecher) on my own LAN, most of the UI stuff figured out. Will wait until I get it a little more solid before working on the Gtk, Qt, and command-line ports (I expect those to be pure interface work at that point).
I'm working on `tu` (terminal use), which is a way to give agents access to a full blown virtual terminal to operate TUI apps
https://github.com/flipbit03/terminal-use
I'm super proud, because it came to my knowledge that someone at Codex used my tool to debug codex+zellij issues, by running zellij within `tu`, and then codex inside zellij
Still very early, but I’ve been building Market Diary - https://marketdiary.io. Log daily market thoughts, document trades, and review charts all-in one place. Built for solo investors and teams who want to turn noise into alpha. Powered by Markdown, supports file attachment, teams, and TradingView charts. Free to signup. Would love feedback.
I’m working on an ATS system that integrates LLMs for helping the recruiter in writing job descriptions, parsing CVs to Markdown, making summaries of CVs and suggest which ones match the best the job offers giving pluses and minus: https://beehive-ats.com/
Been working on a paper that's my attempt to add a meaningful update to macroeconomic theory, specifically around the effects of high-entropy outputs (waste, heat, harmful byproducts) as diminishing GDP and general population health. Working on some studies backed up with data to support. If anyone here is interested in economic theory, I could use your feedback.
Got fed up that startups and small companies having to pay for Enterprise level compliance and sustainability tools, to be considered as a supplier.
So built Sustalium (https://sustalium.com) which is designed to be easier and faster for micro-small-medium businesses to comply with majority of compliance & sustainability frameworks.