FROM THE FOUNDERS
Insights, alerts and updates
BrainStormers insights are practical guides from our two founders: startup engineering articles by Thanos Gkanas and product management articles for founders by Roger Grekos. Alerts track security issues and deadlines, each sourced.
13 INSIGHTS · PAGE 1 OF 2
The drawing shows our guides filtered by a search and, under it, the rule that every word must match a title, summary or topic, with a live count.
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Where to start reading
The three most recently updated guides.
SCALE STRATEGYGUIDE
How to build a product roadmap
How to build a product roadmap a startup can follow: formats, a seven-step process, RICE scoring, a copyable template, examples for three stages and habits that keep it honest.
Roger GrekosSCALE STRATEGYGUIDE
How to find product-market fit
How to find product-market fit: the signals that show it, how to run the product-market fit survey, the questions to ask, and what to change when the answer is no.
Roger GrekosAI CODE FIXINGGUIDE
How to measure and reduce technical debt
How to measure technical debt, the types that hurt startups most, and a step-by-step way to reduce technical debt while you keep shipping features.
Thanos Gkanas
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Alerts and updates
Active alerts come first, soonest deadline at the top, next to our end-of-life tracker for a typical startup stack. All our startup industry updates are also listed on one page.
- SHUTDOWNS FROM OCT 23DEADLINE OpenAI API deprecations: shutdown dates, October 2026 to January 2027
- EXPOSURES REPORTED TO OCT 1Vibe coding security: why AI-built apps exposed data in 2026
- IN EFFECT SINCE AUG 2, 2026EU AI Act enforcement: what startups calling model APIs must do
- NEW WAVES THROUGH OCT 2026npm supply chain attacks in 2026: what startup teams should change
Software end-of-life tracker: the dates your startup stack can't missAlerts and updates
THE FULL LIST
All BrainStormers insights
Every guide, newest first.
- PRODUCT VALIDATIONGUIDE
How to validate a business idea with real evidence before you build
How to validate a business idea before you write code: interviews, bottom-up sizing, smoke tests and pre-sales, with go, pivot or stop signals and real examples.Roger Grekos - PRODUCT VALIDATIONGUIDE
The product discovery process
A product discovery process for startups in four steps, with the techniques that fit each step, the questions to ask users, a simple framework and a one-page template you can copy.Roger Grekos
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