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

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

#671

Post by matthiaswh »

epaga wrote: post #600

Working on a tactical map-based WW2 submarine simulator called Silent Shark. https://silentshark.app Free beta version is running well ( https://silentshark.app/alpha ) and I plan on releasing the full WW2 campaign version on Steam, App Store, and Play Store in the next month or two. It's been an absolute blast getting feedback from Navy geeks on Discord, tweaking things, and my favorite moment was when my stadimeter…

The quotes on the homepage made me chuckle.

This looks right up my alley, looking forward to playing it.

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

#672

Post by lawgimenez »

I’m currently working on an API-first identity verification backend built with FastAPI. It is made for handling ID documents, selfies, OCR data, biometric signals, API keys, webhooks, and tenant billing data.

Hopefully I can find an investor in the future, still in the early stages.

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

#674

Post by LurkerAbove »

I had an idea about explaining ML predictions without direct access to the data or the model: provide basic stats about your data, use them to generate synthetic data, then train a surrogate to predict your model's predictions on the synthetic data.

Could be handy for model risk management and governance, e.g. if you need a challenger model for SR 11-7 without all the hassle of getting access to the original data, getting the black box model set up, and so on. I wrote it because I remember having to create "throwaway" models to show why I needed a better model; it would have been nice to just make a couple of API calls instead.

SDK: https://github.com/proxyml/proxyml-sdk-python

Schema builder: https://github.com/proxyml/schema-builder

Landing page: https://proxyml.ai/

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

#675

Post by metadata »

Safe Boundary, a database security proxy especially optimized for AI agents: https://www.spectralcore.com/safeboundary

Launching for Postgres very soon (currently working on Supabase-optimal deployment). Continuing with Oracle, SQL Server, MySQL in the coming months.

Our superpower is a very fast parser with full static analysis engine. This enables not only blocking of destructive queries but also deep SQL rewrite for PII masking in real-time. It also means better syntax error messages which allow AI agents to adjust their SQL queries automatically.

Full workflow (parsing + static analysis + SQL rewriting + logging) takes less than 1ms.

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

#678

Post by needcaffeine »

I'm working on https://www.OnetimeFax.com - it's a way to send and receive faxes for a flat fee without needing to subscribe to anything.

Version 1 was a script I wrote for myself to fax the courts a jury duty deferral during covid lockdown, and then during my parental leave I productized it.

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

#679

Post by jo-m »

druskacik wrote: post #584

European night trains search engine. The plan is not to provide the functionality where user searches for a specific route on a specific date and the engine returns prices. The plan is to provide "tips for trips", e.g. I provide a starting city and it will recommend me interesting trip ideas any time in the future. There are many flight apps that provide this functionality, but no train app. Currently I'm building sc…

cough that name is already in use ;) https://github.com/jo-m/trainbot
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