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cosmok

cosmok on Hacker News

Show HN: I made a startup idea validator for founders who move fast

Posted by cosmok on Saturday June 20, 2026 @03:45AM
from the show-hn dept.

https://ideas.trk7.app/use-cases/startup-idea-validation

I’ve been building web and mobile apps for many years. They were created to solve problems I had personally faced, but none of them became huge.After thinking about it for a while, I came to the conclusion that there were two primary reasons for that:1. Marketing: getting it in front of people 2. Demand validation: are people searching for it?And the combination has to be profitable.After a lot...

( Read More... | no comments | on HN )
Re:Show HN: Decision OS – A framework to evaluate job offer risk (not ... on Tuesday February 17, 2026 @02:44AM (#47044759)
Sample Report: https://decide.trk7.app/assets/sample-offer-full-llm.pdf

Show HN: Decision OS – A framework to evaluate job offer risk (not just salary)

Posted by cosmok on Tuesday February 17, 2026 @02:37AM
from the show-hn dept.

Hello HN,A few days ago I shared my "Should I Quit?" calculator. The most common feedback was: "Okay, I should quit, but how do I know the next thing isn't worse?"So I built Part 2: The Offer Evaluator.Most offer comparison tools just look at Total Comp or commute time. I wanted to model the structural risks of a career move using a weighted decision matrix.The Methodology: The "Decision OS"...

( Read More... | 1 comment | on HN )
Re:Show HN: Decision Audit – A deterministic decision engine for caree... on Saturday February 14, 2026 @11:36PM (#47021089)
Sample Output: https://decide.trk7.app/assets/sample-brief.pdf

Show HN: Decision Audit – A deterministic decision engine for career pivots

Posted by cosmok on Saturday February 14, 2026 @11:14PM
from the show-hn dept.

https://decide.trk7.app/intake/should-i-quit

Hello HN,I’m a solo dev building a tool to replace the "pros and cons" list for high-stakes decisions.While LLMs are great for brainstorming, I found them dangerous for actual decision-making—they hallucinate and try to please you rather than giving you a hard truth. I wanted something that combined deterministic logic (weighted criteria) with generative explanation (narrative).The...

( Read More... | 1 comment | on HN )
Re:I Read All of Cloudflare's Claude-Generated Commits on Saturday June 07, 2025 @03:15AM (#44208018)
I have documented my experience using an Agent for a slightly different task -- upgrading framework version -- I had to abandon the work, but, my learning has been similar what is in the post.

https://www.trk7.com/blog/ai-agents-for-coding-promise-vs-re...

Re:Ask HN: What non-AI products are you working on? on Tuesday March 26, 2024 @08:09PM (#39834308)
I have been working on a private diary app. All data stored in the device and is available as a SQLite export. Android: https://play.google.com/store/apps/details?id=com.trk7app.ap... iOS: https://apps.apple.com/us/app/app-ananda/id6446887879?itsct=...
Re:Stable Audio: Fast Timing-Conditioned Latent Audio Diffusion on Wednesday September 13, 2023 @04:22PM (#37501241)
I have had a lot of success with this: https://ultimatevocalremover.com/ for de-noising
Re:Show HN: My Privacy Friendly Diary App on Tuesday May 02, 2023 @08:38AM (#35786490)
Links: Android: https://play.google.com/store/apps/details?id=com.trk7app.ap...

iOS: https://apps.apple.com/us/app/app-ananda/id6446887879

Community: https://community.trk7.app/c/app-ananda/app-ananda-goals-dis...

Show HN: My Privacy Friendly Diary App

Posted by cosmok on Tuesday May 02, 2023 @08:34AM
from the show-hn dept.

Greetings,Over the past few months, I have created a personal Diary app called "App Ananda." It operates exclusively offline and in private, allowing you to document your thoughts and daily activities. Additionally, you can add goals and track your progress over time. By considering your Goal Tracking and Diary Entries, the app generates a score (currently based on frequency) that indicates how...

( Read More... | 1 comment | 2 points | on HN )
Re:I regret using Ionic for app development on Saturday April 08, 2023 @09:46PM (#35499376)
Debug builds are big. Production releases of Apps are very small - one of my Flutter Apps 7.6 MB.
Re:The Future of HHVM on Monday September 18, 2017 @05:38PM (#15279865)
Laravel encourages DI via Service Containers: https://laravel.com/docs/5.5/container And, Laravel static methods (as you see in the docs as Facades) are not truly static (and testable/mockable). https://laravel.com/docs/5.5/facades#facades-vs-dependency-i... http://usman.it/laravel-4-uses-static-not-true/
Re:Ask HN: Idea Sunday on Sunday May 04, 2014 @03:20AM (#7693620)
I created a bookmarklet many years ago that does this and a little bit more: https://github.com/cosmok/HackerNews_Sorter
Re:Google's text-to-speech engine randomly inserts phrase "he now prai... on Friday January 04, 2013 @12:05AM (#5006356)
I was able to reproduce this on a Galaxy Nexus.
Re:Joel Spolsky: Lunch on Thursday April 28, 2011 @06:25PM (#2495370)
Great points! But, it can get pretty lonely to have your lunch alone - sometimes even depressing. I tend to have lunch with 1 or 2 of the closest of workmates whenever I can.
Re:Dear Dr. Stallman: An Open Letter on Saturday April 23, 2011 @09:16PM (#2478048)
It is almost impractical for me to be like Stallman and shun a lot of Hardware/Software. But, I do not wish for Stallman to be any less radical than he is as: by being radical he gains my attention and some of his thoughts and ideas stick with me and, it has made me think about 'freedom' while buying any piece of Hardware/Software.

I would never want to work him on anything - I watched him tear apart people while responding to their concerns - but, people like him are essential to the Free Software movement.

Re:How not to protect against SQL injection (view source) on Tuesday March 29, 2011 @08:06PM (#2385126)
Very easy in PHP. http://php.net/manual/en/pdo.prepared-statements.php
Re:Ask HN: What are your best life hacks? on Sunday March 13, 2011 @05:18AM (#2318780)
I have forced myself to stop checking mail, facebook, time, etc. on my mobile after I have decided to rest. I have slept better since then.
Re:8.9 earthquake hits Japan on Friday March 11, 2011 @02:44AM (#2312563)
Not according to the guidelines:

    "Off-Topic: Most stories about politics, or crime, or        sports, unless they're evidence of some interesting new phenomenon. Videos of pratfalls or disasters, or cute animal pictures. If they'd cover it on TV news, it's probably off-topic."
But, I don't mind it all as I get to read views and firsthand accounts from fellow hackers that is much different from what I see on TV.
Re:Ewww, You Use PHP? on Friday October 22, 2010 @06:21PM (#1821752)
Good example!

Things like "stat cache" and "memory leaks" are what I watch out for when I write command line scripts in PHP. Also, I do not run my scripts as a daemon and I make sure that they do not run for more than a set maximum execution time.

So yeah, it may not be the most perfect choice but, it beats : having to learn another language when I know what to look out for when I write a command line script in PHP.

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