Originally posted on LinkedIn on October 22, 2026
Most of my investments are in ETFs and stocks. I regularly check how they’re doing, either in my broker’s app or in apps like Yahoo Finance or Apple Stocks. But none gives me quite the overview I want.
Some bother me with charts and financial news. Others make it hard to find my gains since purchase or my portfolio breakdown. Editing holdings can be unintuitive, and then there can be ads.
Vibecoding to the rescue!
Using OpenAI’s Codex, I built RichYet?: a personal investment overview that shows me exactly what I want to know. My portfolio’s value, the latest price changes, gains and losses on my current holdings since purchase, and how my investments are divided up. Simple to check, easy to edit, and without ads.
The four screenshots show a fictional example portfolio.
Once I was happy with it, I wanted to open it up to other users. That turned out to be harder than building the app: the free market-data services I used have limits on both usage and sharing their data.
So I’ve made RichYet? open source. Others can install and host their own copy, using their own data-provider accounts and free allowances.
https://github.com/msmeehui/richyet-self-hosted
It’s fascinating that AI now lets me replace apps that don’t quite work for me with something designed around my own needs. Earlier this year, I did something similar with my weather app, MyMeteo.
Which app on my phone is next?
Back to AI experiments and musings
Nice!! Zo kun je alles op maat maken!
Ja, handig hè
Knap werk Mr Caveman!