Feb 2 – 23, 2026 · 21 days · part-time

Shane Calder

10 products. 6 domains. Everything from AI tools to security research. All working. All shipped. What can you build when you collaborate with AI?

10
Products
21
Days
6
Domains
PT
Part-Time
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The Sprint

21 days. This is what happened.

0
Products Shipped
0
Stripe Integrations
0
Lines of SQL
0
LLM Providers
The Work

Six themes. One sprint.

01
Taught Machines to Scope
AI-powered spec generation, resume screening, multi-provider BYOK architecture
ForgedScope Advanced 132hiring
Product Hunt · Mar 3
02
Quantified Uncertainty
Monte Carlo simulation, 18 computational methods, risk matrices across construction and finance
RiskTools MarketRisk
03
Replaced Six Tools With One
9 modules, 2200 lines of SQL, CPM scheduling, EVM, Monte Carlo, P6 XER export
132 Platform
04
Bridged Code to Hardware
SRM motor design with physics-based calculations, BOM, Fusion 360 export. ESC creator with KiCad PCB generation.
SRM Motor Tool ESC Creator
05
Shipped End to End
Flutter mobile app, EJS landing and admin, Stripe integration, full backend — hospitality platform
StayLocal Flutter EJS
App Coming Soon
06
Tested the Trust Layer
LLM policy channel security research — unauthenticated injection, cryptographic fix, threat model
Security Lab CWE-306 PoC
Active Research
The Stack

Tools used across the sprint

Node.js
EJS
Flutter
Express
PostgreSQL
Supabase
Stripe
Tailwind
Three.js
Chart.js
Vercel
Python
Kali Linux
Fusion 360
The Builder

About Shane

I built 10 products in 21 days, part-time. Show what you can do when you collaborate with AI.

This portfolio is a challenge as much as a showcase. I used AI tools to their full capacity — not to replace engineering judgment, but to multiply it. Every product here has a real backend, real payments, and real users. None of it was generated and left untouched. It was engineered.

I want to see what other builders can ship with the same constraint: 21 days, part-time, real products. Not prototypes that die on localhost — working things with Stripe, auth, databases, and a URL. You and AI, collaborating. Show what that actually looks like.

The 21-Day Sprint Challenge: Pick your stack. Pick your domain. Collaborate with AI. Ship as many real, working products as you can in 21 days, part-time. Tag it. Share it. Let's see what people can actually build when they stop planning and start shipping.

Principal Risk Consultant · AI Architect & Developer · Quantitative Modelling · Energy & Nuclear

25 years in capital and mega projects across nuclear, oil & gas, power, and water. Engineer and hacker. I build the tools I can't find and break the ones I don't trust.

Get in Touch

Think what I could
do for you.

Or better yet — take the 21-day challenge and show what you can build when you collaborate with AI.