Konstanty Litwinow Jr's profile on Product Hunt

About

Hi, I'm Konstanty. I'm an MSc Cyber Security student and indie builder focused on creating secure SaaS and AI products. I build in public, document the process daily, and share everything I learn - from product ideas and architecture decisions to launches and mistakes. Current projects include: • Build Sprint - a free 7-day sprint for indie founders • ShipSafe - a production-grade Next.js boilerplate • ShipStreak - build consistency for makers • MakerWall - discover and showcase indie startups Always happy to connect with builders who enjoy shipping.

Links

Website

Threads

Twitter

Badges

Tastemaker

Gone streaking 10

Gone streaking

Gone streaking 25

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Maker History

ActivityProofProve you're still shipping. On your site.
Aug 2026
Build Sprint by KLJrA free 7-day build sprint for indie founders.
Jul 2026
PrioraEvery Feature Earns Its Place.
Jul 2026
ShipStreakDon't break Your streak.
Jul 2026
MakerWallGive every maker a place to exist publicly.
Dec 2025

Forums

•

26d ago

ActivityProof - Prove you're still shipping. On your site.

Your feed shows the grind. Your product site still looks frozen. ActivityProof is a live shipping-status badge for indie product sites. Connect GitHub, preview the SVG free, pay once to go live, paste one embed. Visitors see real shipping posture: actively maintained, days since update, or live since a date. Honest when you slow down. Unlike Shields (README-first) or portfolio pages, this sits on your product URL where buyers land. One-time payment. No subscription.

p/build-sprint-by-kljr

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1mo ago

Would you join a 7-day build sprint?

I'm running a small experiment called Build Sprint.

The idea is simple:

10 founders
7 days
Ship one real product
Demo Day at the end

No courses. No "growth hacks." Just building alongside other founders with daily check-ins and accountability.

•

1mo ago

Build Sprint by KLJr - A free 7-day build sprint for indie founders.

Build Sprint by KLJr is a free, 7-day build challenge for indie founders who want to stop planning and start shipping. Instead of endless courses or accountability groups, participants commit to building one product for seven consecutive days, share daily progress, and finish with a live Demo Day. Every accepted founder receives a toolkit including ShipSafe, ShipStreak, prompt packs, templates, community support, and practical guidance designed to remove friction and help them ship.