The hardest part of building isn’t the code — it’s turning a raw idea into something executable. Here’s what I’m building next
Build in public — Modules #2 and #3 in progress
I've shared what DomainFlow is (Module #1 — already shipping).
Now let me talk about the next two modules I'm actively building inside InnerSpark OS.
Module #2: CashOS Lite
The problem it solves:
Most solopreneurs and small founders have no real visibility into their cash situation week to week. They're reactive. They find out things are tight when it's already tight.
What CashOS Lite is:
A weekly finance module — Notion template + guide + checklist + optional AI prompts — designed to give you cash clarity in 10 minutes per week.
The core idea is brutally simple: you sit down once a week, run through your checklist, and you always know where you stand. No accounting software needed.
What it includes (in progress):
→ Weekly cash tracking template
→ Income/expenses/pending payments views
→ 10-minute weekly checklist
→ Optional AI prompts (for analysis, not magic)
Modularity principle: works standalone, connects to the OS when you're ready.
Module #3: Idea Engine
This is the one I'm most excited about.
The problem it solves:
You have ideas. Lots of them. But most of them die in a notes app or a Notion dump because you never turn them into something actionable.
What Idea Engine is:
A Notion + AI system with three components:
- DB Ideas — a structured pipeline for capturing and ranking raw ideas
- DB Frameworks — mental models to analyze and stress-test ideas
- Ralphi Prompts — guided AI prompts that help you think better, not just faster
The output: you put in a raw idea, you get out a structured brief, the right questions to validate it, and a clear next step.
This is different from "just using ChatGPT" because the structure is opinionated. The frameworks force you to think about the problem, the market, and the execution before you start building.
Why I'm building these three modules first:
Every founder I know has these three problems:
- Domain/hosting renewals slipping through the cracks
- No weekly cash clarity
- Ideas that never become projects
Three small modules. Three real problems. Each one under $30.
Eventually they all plug into the full InnerSpark OS. But you don't need the OS to get value from any single module.
That's the Lego model: start with one block, build the wall when you're ready.
— Rafa | building InnerSpark OS from Guayaquil 🇪🇨
