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Ask HN: What are you working on? (February 2025)

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Re: Ask HN: What are you working on? (February 2025)

#521
post #23

A platform for technical founders to accelerate their journey to PMF http://buildrappo.com/founders

I’ve faced this challenge multiple times in my journey of building products and startups—having an early champion onboarded as a design partner while the team builds is critical to a startup’s success.

Re: Ask HN: What are you working on? (February 2025)

#523
I'm working on Alumnium (https://alumnium.ai). It's an open-source library to simplify web application testing with Selenium/Playwright.

I aim to create a stable and affordable tool that allows me to eliminate most of the support code I write for web tests (page objects, locators, etc.) and replace it with human-readable actions and assertions. These actions and assertions are then translated by an LLM into browser instructions. The tool, however, should still leverage all existing infrastructure (test runner, CI/CD, Selenium infrastructure).

So far, it's working well on simple websites (e.g., a calculator, TodoMVC), and I'm currently working on scaling it to large web applications.

Re: Ask HN: What are you working on? (February 2025)

#525
I'm building a new tool for end-to-end data validation and reconciliation in ELT pipelines, especially for teams replicating data from relational databases (Postgres, MySQL, SQL Server, Oracle) to data warehouses or data lakes.

Most existing solutions only validate at the destination (dbt tests, Great Expectations), rely on aggregate comparisons (row counts, checksums), or generate too much noise (alert fatigue from observability tools). My tool:

* Validates every row and column directly between source and destination * Handles live source changes without false positives * Eliminates noise by distinguishing in-flight changes from real discrepancies * Detects even the smallest data mismatches without relying on thresholds * Performs efficiently with an IO-bound, bandwidth-efficient algorithm

If you're dealing with data integrity issues in ELT workflows, I'd love to hear about your challenges!

Re: Ask HN: What are you working on? (February 2025)

#528
post #523

I'm working on Alumnium ( https://alumnium.ai ). It's an open-source library to simplify web application testing with Selenium/Playwright. I aim to create a stable and affordable tool that allows me to eliminate most of the support code I write for web tests (page objects, locators, etc.) and replace it with human-readable actions and assertions. These actions and assertions are then translated by an LLM into browser…

Pretty cool. I built my own framework to do something similar very recently.

Microsoft omni parser and claude computer use alone can take you very far in testing almost anything.

Re: Ask HN: What are you working on? (February 2025)

#529

I’m creating an observability tool that I’m trying to make user-centric while staying developer friendly. Most of the tools for remote logging, live dashboards and alerts are either too big, too expensive, or have a “per seat” plan, and incorporate the famous “home” screen with metrics and tips you absolutely never care of. I’m also trying to stay cheap and focused on very few techs (node, Postgres, docker, react) an…

> Even if I don’t get any customers I’ll continue developing it for my own needs!

That’s the spirit! A buddy of mine created a tool/API to solve his own problems, opened it to the public and launched it, but he got very few sign-ups, so he just continued to use it for himself. Recently, about two years later and out of nowhere (without doing anything other than the original bit of SEO he did), he started to see a bunch of sign-ups (including paid) and then started receiving feedback and support request emails from customers. Most folks would’ve just called it quits on the product at least a year ago, but he just kept using the product for his own projects and left it open to the public just in case it was helpful for anyone else. Obviously, YMMV, but good luck with this!

I’m on mobile right now, but I think I’ll give it a try when I’m back at my computer.

Re: Ask HN: What are you working on? (February 2025)

#530
I've been working on an app that will use ai to decorate my Anki cards with audio/example sentences/images. The more I get into it though, the more I think I may just end up writing my own flashcard app. I feel like most of the project has been spent wrestling with AnkiConnect, while the fun stuff has been fairly simple.
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