WhatsApp is Nigeria’s everything app.
@moniediary turns it into your money manager too.
No new apps. No bank drama.
Just text/ share your expenses & we do the rest.
#Moniediary
Bank statements show you numbers.
This product shows you patterns.
Just ask:
“Where did my money go this week?”
“Am I spending more on Bolt or food?”
You get replies. With answers.
A link will be dropped soon for early access
Paystack processed over ₦1 trillion in transactions last year.
Their APIs handled Black Friday spikes, salary-day traffic, and even the naira devaluation panic without major public downtime.
Here are a few architecture patterns that make systems like that possible
why im obsessed with system design ?
Netflix → serves 230M+ users globally with zero downtime
WhatsApp → handles 100B messages daily seamlessly
Instagram → processes 500M daily active users
Zoom → scaled from 10M to 300M users overnight (COVID)
Amazon → built the most reliable infrastructure on earth
Google → search responds in 0.2 seconds across billions of queries
idk If this doesn’t excite you, what will
One day we’ll sit down and really talk about you people that “do tech” but never show a single thing you’ve actually done.
No projects. No proof. Just vibes and tweets.
You're redesigning a public API
that 10,000 developers already use.
You need to make breaking changes.
How do you do it without
destroying everyone's integration?
So, I just got the 2nd subscriber 🚀
$10.80 MRR so far. No ads, No official social media posts.
Just organic outreach.
What did I build?
I’ll share soon..