Ask HN: What are you working on? (May 2026)

Hey I'd really love your input based on your academic background on an app I'm building if you have the time. It's learning focused.

I'm a Dad homeschooling a son and have a dog in the race of making parental guided education easier.

https://chunkker.com

I have an Alpha user who's a PhD and makes courses but I still want diverse feedback.

[Vaava](https://www.vaava.app/) is a baby tracking/logging app I originally built for myself, now available on both app stores. All the user generated data is stored only on device and is transferred in local network to users who you have paired the app with. There is 0 behavioural analytics, even the crashlytics are 100% optional.

There is a couple of semi-unique features; you can use your voice to dictate and generate events (feeding, sleep etc), you can also scan documents for growth measurements.

You don't need user account to use it, there is no subscription, the paid features are available behind a single purchase for lifetime. Still like 90% of the features are available for free.

Also https://www.athilio.com/ , which originally was also purely for my own use. Most sports and fitness wearable manufacturers own software and 3rd party software make it incredibly hard to do "how does my this months metric x compare to same month last year", athilio attempts to make those queries easier. Many of the ideas are basically copied from software observability concepts. Also I have used the app to implement and learn agentic workflows.

I have paid for to do apps to try and tackle this by using the NLP "every 3 months" etc to basically accomplish this.

I think you're smart to spin it out to its own thing because I tend to use them differently batching my chores into a time gate and then using my "chore list" to know what needs to be done. And also the notifications for chores tend to distract from "Important one time task you don't want to forget".

I'd consider paying for this if the app was well done and reasonably priced.

A tool to simulate and benchmarks MPC protocols in your local machine with your desired network parameters, without need to spawn real distributed servers. The simulator uses math formulas to compute the delays to send the messages.

The tool simulates MPC protocols but also allow you to write them using traditional networking as usual.

I expect this tool to be useful for protocol researchers and cryptography engineers.

I've been working on https://thumbnail.ai/ full time for a year now. It lets you make thumbnails for your social media and youtube videos with preset templates. Going great so far. I'm looking for a marketer/content creator to grow it.