Core Codex
A fixed 90-day execution system for solo operators building a business on roughly 10 hours a week with limited capital. Pick one revenue engine, run it on preset rules, and let written kill criteria decide what happens next.
- Format
- PDF, about 95 pages, with embedded decision diagrams
- Built for
- Solo operators with about 10 hours a week and limited capital
- Horizon
- One 90-day cycle. One engine. Kill criteria written before you start
- Price
- $29, one-time. Instant download after payment, no account needed
The problem
Most side projects do not fail from lack of effort. They fail from drift.
You change platforms in week three. You add a second offer in week five. You quit in week seven, two weeks before the data would have told you anything useful. None of that is a work-ethic problem. It is a missing-structure problem.
The Core Codex is a fixed 90-day execution system for solo operators building a business on roughly 10 hours a week with limited capital. It exists to protect you from your own optimism. Every block of the system answers one question: should this continue as it is, or does a preset rule now apply?
What you get
A 95-page PDF covering the full 90-day arc
The 2026 reality check
Which solo business models still hold leverage and which are structurally dead (SEO-only content, volume plays, "passive" income without ongoing control), and the three durable advantages every tactic in the system anchors to.
The three revenue engines
Attention, Conversion and Intent: what each one requires, the time horizon, the failure modes, and who should and should not run each.
The single-engine rule
Why you commit to exactly one primary engine per 90-day cycle, and the selection process for choosing yours.
The execution phase, week by week
- Weeks 1 to 2: signal before confidence, with a daily execution structure for week 1
- Week 2: controlled adjustment rules, so you change one variable at a time instead of rebuilding
- Weeks 3 to 4: commitment and compounding
The decision phase
Kill, continue or scale. Kill criteria are written before you start and are non-negotiable. Continue mode defines stability without expansion. Scale gates define what earns the right to grow.
The operator layer
A readiness assessment, the full 90-day execution timeline, failure mode avoidance, and a final execution contract you sign with yourself.
Four appendices
Realistic revenue projections (deliberately conservative), failure diagnostics and pattern identification, metrics reference bands, and a one-page decision summary.
Fit
Who it's for, and what it is not
This is for
- Solo operators: founders, freelancers, consultants and working professionals building a side business in the hours real life leaves them
- People who prefer boring progress over exciting chaos
- People willing to stop when the data says stop
This is not
- A marketing course, or a list of niches or business ideas
- A passive-income pitch. The system assumes ongoing, scheduled work
- Motivational. If you need momentum supplied from outside, this will frustrate you
- A guarantee of income. The projections appendix is intentionally conservative
The constraints in this system are deliberate. If a step feels too simple, that is usually because it removes a decision you do not need to make yet.
Free excerpt
Already read the free Attention Engine brief?
That brief is Section 3 of this document, uncut. The Core Codex adds the other two engines (Conversion and Intent), engine selection, the week-by-week execution phase, the kill/continue/scale decision framework, scale gates, the operator readiness assessment, the 90-day timeline and all four appendices.
Read the Attention Engine brief, free, no email required.
Questions
Frequently asked
What format is it?
A PDF of about 95 pages with embedded diagrams: the engine selection matrix, the signal-state flowchart, the 90-day timeline, the scale gates and the decision flowchart.
Is this specific to one platform or business model?
No. The system is engine-based, not platform-based. Platform selection guidance is included for each engine.
How is this different from the free brief?
The free brief covers one engine. The Codex covers all three plus the full execution and decision framework that turns an engine into a 90-day operating plan.
Do I need money to start?
The system assumes limited capital. It is built around time and consistency, not ad spend.
Is there a guarantee I will make money?
No. Anyone who promises that is selling you something else. This system defines success and failure signals up front so you find out the truth faster, whichever way it goes.
Buy
Get the Core Codex
Pay once with a card through Stripe. Your download page opens the moment the payment goes through, and its address keeps working, so bookmark it.
- 95-page PDF with embedded decision diagrams
- All three engines, the 90-day arc, kill criteria and the four appendices
- No subscription, no upsell. Yours to keep
$29one-time, USD
Payment is handled by Stripe. We never see your card details. Instant download, no account needed.
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