Solo founder · build-in-public

Hi, I'm Juan.

I built Diaz Editor because Aurora Solar's $156/month was eating my margin. This is the full story — no marketing copy, just the facts.

Why this exists

18 months ago I was combining 4 disciplines in Excel for one customer: solar + battery + heat pump + electrical. Aurora did solar only. Helioscope did solar only. PVsyst was scientific but no drafting. SketchUp plus four plugins half-worked.

So I forked Pascal Editor (MIT, 14 years stable) and built what I needed: one drawing for all 9 disciplines. Local. One-time payment. No cloud lock-in.

What I'm betting on

80% of the solo installers I know do fewer than 30 systems per month. For them Aurora costs $1,872/year = 18-25% of their software budget. Diaz Editor is €99 (introductory price — it goes up at v0.5). One payment. Lifetime updates.

If the bet is right: 5,000 customers in 24 months. If wrong: I learn what I missed and keep building. Simple.

Tech & process

No mystery. Here's the full stack:

Editor Pascal Editor MIT-fork
(© Pascal Group Inc.)

Stack Electron + Next.js + React + Three.js

Payments Stripe + Lemon Squeezy
(parallel, no SPOF)

Licenses Supabase + HMAC-signed keys
(GDPR compliant)

Auto-update electron-updater +
public GitHub release mirror

Platforms Windows · Linux (live)
macOS: roadmap, no date

Solo dev, no funding, no runway-pitch. Direct from my work laptop to your PC.

Roadmap promise

Public roadmap at diazatlas.com/roadmap. Public changelog at diazatlas.com/changelog. Public GitHub releases at bongartzdiaz/diaz-editor-releases.

If I get hit by a bus tomorrow, €197 buyers can fork it — Pascal Editor's MIT license still applies. No ransomware risk. That's a promise with legal backing, not marketing copy.

Contact

Email directly: juan@diazatlas.com·WhatsApp: +31 6 5314 2656

Response within 2 business days
No contact form, no ticketing system (yet)
No chatbot — a human reads every email

Ready to build?

€197 one-time. Three workstations, lifetime updates, no subscription.

Get the licence — €197 →

What you get for €197

One-time. Lifetime. 3 seats. No subscription.

Diaz Editor Pro — lifetime license for your full workday
3 seats — you + your foreman + your work-prep ✓
All trades in one tool — building, carpentry, electrical, plumbing, mechanical, solar 4 tools saved
DXF export — works with any architect, contractor, or installer Included
1-click PDF export — quote, work-drawing, and BOM in one pack Included
DXF + CNC export for the workshop — cut lists, sheet layouts, mill paths Included
All future updates — v0.4, v0.5, v0.6... Included
Feedback form that reaches the developer directly Included

Built for self-employed tradespeople + small teams (1-10 people). Not for architects or utility-scale engineering — AutoCAD and Aurora are better at those.

Introductory price — goes up at v0.5:

€197 today

Buy the licence — €197 →

Stripe checkout. Instant download after payment.