Costel Apostol

@costel_apostol

Stockholm, Stockholm, Sweden

@costel_apostol_

Norynth Neural
2026 — present
Domain-specific AI for engineers. 9 intelligence domains, Stripe subscriptions ($9.99/mo Pro), Google OAuth, built from scratch in 54 hours. Free tier available.
Engineering Playbooks
2026 — present
Three production-ready engineering resources: API Design (20+ patterns), Data Architecture (25+ examples), Smart Contract Security (70+ patterns). Sold via PayPal.

Recent activity

PostedI built an open-core logistics platform — here's what happened in month 12026-06-01
Commented onI built an AI platform from scratch in 54 hours (PHP, no frameworks)2026-05-22
Commented onI built an AI platform from scratch in 54 hours (PHP, no frameworks)2026-05-22
Commented onI built a private journaling platform with a local AI. No cloud APIs, no tracking, no likes. Here's why.2026-05-22
Commented onI built a private journaling platform with a local AI. No cloud APIs, no tracking, no likes. Here's why.2026-05-21
Commented onNexusAI is a production-ready AI SaaS starter2026-05-20
Commented onI built an AI platform from scratch in 54 hours (PHP, no frameworks)2026-05-20
PostedI built an AI platform from scratch in 54 hours (PHP, no frameworks)2026-05-19
Commented onPterocos: Online HTML Editor with AI chat I wanna hear feedbacks2026-05-18
Commented onThe fastest AI teams are winning because they iterate publicly2026-05-18
Commented onBuilt what I wished existed. Validated it. Can't sell it. What now?2026-05-18
Commented onI went from 0 LinkedIn leads to $15k in new clients by doing LESS work2026-05-18
Commented onLeadSynth will show you why working harder is making things worse2026-05-18