Restraint Has Surpassed Raw Execution
How mapping time to money in just two days reinforced my approach: build simple.
When Time is Revenue
For many service businesses - think freelancers, plumbers and other tradespeople, my barber - the calendar is the most important thing for their operations. Every empty slot is lost revenue, every booked slot represents a sale. While many businesses understand the relationship between their calendar and their revenue, there is still a big reliance on gut-feel to understand the impact day-to-day, especially if they primarily accept cash where there is no clear electronic paper trail.
This prompted me to consider whether Cari and its focus on micro/small businesses in emerging markets, where so much is manual, could potentially deliver a simple, accessible way to leverage the calendar as a simplified proxy for revenue.
The Feature: Mapping Time to Money
Appointments and calendar functionality have long been on my radar for Cari, I even explicitly mentioned it back in November 2025. It’s not hard to see why, I’ve consistently received feedback that while expenses are important, anything that touches revenue is more immediately valuable. Cari already supported basic revenue logging functionality.
This works, but requires the business to remember to log each transaction as it happens. Something I see very few cash-based businesses do, especially if it’s a busy day with customers constantly arriving waiting for their turn. So I figured, “what would be the simplest way to approach this?” and this led me down the path on this calendar-to-revenue feature. Here’s what it actually does in practice:
Businesses link their Google Calendar via their existing WhatsApp conversation with Cari. With that alone, they can already ask detailed questions about their schedule.
But on top of that, because Cari already supports basic revenue functionality, they can now ask Cari to identify any events on their calendar that could represent revenue and Cari will help them log that revenue.
I want Cari to stay out of the way as much as possible. It’s there when a business needs it, but invisible when they don’t. Anything that impacts their real-time workflows with paying customers could lead to me actually costing them money. As such, a key tenet for building Cari was ensuring businesses could use the tool at their convenience retroactively, which could be at the end of the day, or week, or whenever.
Not disrupting their existing flows for managing their schedule was important as well, so it doesn’t require them to use Cari to create/update/delete events, although they can.
Restraint Is Now the Hard Part
The calendar-to-revenue feature is simple. That’s not a limitation, it’s an intentional decision. There’s no shortage of feature rich appointment systems out there already if they want one.
In my experience, restraint has often been a by-product of juggling too many roadmap items with too few technical resources. With AI having proven itself as an undeniable unlock in product development, it is easier than ever to overbuild or deliver frankenstein products. It’s no longer “can we?” because we can, but instead, “should we?”
Given the small scope I decided to start with, it took me just 2 days to get a version of this that I was comfortable sharing with others. Now it’s already out there, behind a feature flag for select folks to provide feedback on.
It was probably working in half a day, and the remainder of time spent on polish and testing. It’s truly remarkable what is possible now if you can build upon solid architecture and point your AI tools at good internal documentation.
Given that backdrop, I’m focusing on value delivered over time or effort spent. An ability to deliver something in 2 days does not necessarily reduce its value to the business owner seeking more clarity on their business.
If anything it highlights that there has never been a better time to experiment with building niche products that don’t scale. It’s a big part of my approach with Area 246 Labs.
If you’re interested in chatting more about this, reach out.