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Joan Comadran

Industrial engineer turned AI engineer. I solve problems with software: websites, apps and AI tools, 10x faster than before. Barcelona · joancomadran.dev

Barcelona Joined on Oct 14, 2026 https://joancomadran.dev

Oct 14

Supabase "new row violates row-level security policy": every cause and the fix

#supabase #nextjs #postgres #rls

8 min read

Oct 14

Shipping shareable poll results with Next.js ImageResponse

#nextjs #webdev #vercel #react

6 min read

Oct 14

A pre-launch security checklist for Next.js + Supabase (from a real launch)

#supabase #nextjs #postgres #security

9 min read

Oct 14

AI agent development cost: what actually moves the number (2026)

#ai #llm #claude #anthropic

8 min read

Oct 14

Claude vs GPT for AI agents: what I actually ship with (2026)

#ai #llm #claude #openai

10 min read

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