I'm going through CMU 15-721 and building wsql[1]; a GPU-accelerated query engine. It uses wgpu for cross-platform portability and implements modular pattern, heavily inspired from Sirius[2] paper.
Ask HN: What are you working on? (February 2026)
671–680 of 1001 posts
Re: Ask HN: What are you working on? (February 2026)
#672This is the first time I have seen a post like this on Hacker News. And I just launched Writtte yesterday, a writing platform for drafting articles with built-in grammar checking and AI-based refactoring with custom styles, and for the first time, with a better copy/paste mechanism for other platforms like Medium, and Substack :D https://writtte.com
tried signing up, didnt receive a sign up mail!
Re: Ask HN: What are you working on? (February 2026)
#673Building ExoAgent: a security layer for AI agents that enforces data flow policy, not just access control.
The problem: agents like OpenClaw can read your email and post to Slack. Nothing stops Email A's content from leaking to the wrong recipient, or PII from ending up in a Slack message. Current "security" is prompts saying "please don't leak data."
The fix: fine-grained data access (object-capabilities) + deterministic policy (information flow control). If an agent reads sensitive data, it structurally can't send it to an unauthorized sink. Policy as code, not suggestions.
Got a working IFC proof-of-concept last week. Now building a secure personal agent to dogfood it.
What integrations would you want if privacy/security wasn't a blocker? What's the agent use case you wish you could trust?
Re: Ask HN: What are you working on? (February 2026)
#674Nonna Emilia, so I don't forget people's names and what they're up to anymore.
I did post about Emilia a few months ago... now I have a domain https://meetemilia.com/
The basic idea is that you give Emilia knowledge about your family and friends, and then you can ask her questions or (eventually) get reminders.
I was motivated during an extended family gathering where I completely blanked out on the names of the partners of some of my cousins. I felt awful... trying to hide the fact that I didn't remember their names.
Now the names and who they are etc is there in Nonna Emilia, and through natural text I can ask questions like "what's the name of all the partners of my cousins on the side of my dad's family?" or something like that.
I am looking for alpha users. The service has legit helped me a few times already remembering stuff, but the amount of work to input all this data still bothers me.
Anyway, it's free. If you want go ahead and try (bugs here and there I bet, and you need a Google Account) and shoot me an email at inerte@gmail.com if you have any comment.
Re: Ask HN: What are you working on? (February 2026)
#675https://anatole.fyi
Hyper relevant business news.
Re: Ask HN: What are you working on? (February 2026)
#676An on-call runbook execution engine - being able to take plain text runbook steps like
- look at logs for $service, check for dependency failures
- look at so-and-so dashboard.
and execute them when an alert fires.
We are at https://www.relvy.ai
Re: Ask HN: What are you working on? (February 2026)
#677My first research paper about World Model caching !
Re: Ask HN: What are you working on? (February 2026)
#678The first AFAIK customer owned self-hosting as a service company. You own the hardware, the software and your data without the hassle of needing to configure or maintain any of it. https://skarabox.com/
The technology is using my open source project https://github.com/ibizaman/selfhostblocks
Re: Ask HN: What are you working on? (February 2026)
#679Building TimeCap: an app that removes the addictive sections of any social media. That means that you can check your friends' updates on Instagram without getting distracted by reels.
It is fully customizable, works on any social media, and it genuinely brought my screen time to less than 1 hour.
It is free to use for one platform, and is $29.99/yr for unlimited. And if you need the premium version but can't afford it, just send me a message and I'll sort you out.
App Store link: https://apps.apple.com/us/app/id6737515680
Re: Ask HN: What are you working on? (February 2026)
#680https://github.com/purplefish-ai/factory-factory - creating an IDE for managing a swarm of claude agents, and more importantly, increasingly baking workflows into them (e.g. design -> build -> review -> push -> address comments).