I'm Nicolas Grenié, a developer advocate working with APIs, AI, and the people building with them.
Watch introCurrently at SLNG.ai
Voice AI, developer experience & community.Useful tools, curious ideas, and things that found their people.
Create your own Airbnb-like icons with AI. Built with Lovable, Supabase, Replicate and Hugging Face. Reached #2 on Product Hunt on launch day. 43k+ icons, 15k+ users. Ranked #5 in Lovable Shipped competiton.
Built in the delivery room while my wife was in labour! When her contraction timer app suddenly asked for login and showed ads, I grabbed my phone and built this in 30 minutes. No logins, no ads, no paywall - just a focused tool to track contractions. Features vibration feedback, offline functionality, dark mode, and export to WhatsApp/Notes. Thanks to Lingo.dev, it's multilingual. Vibecoding at its finest.
Your weekly digest of Barcelona's tech scene. Discover events, connect with communities, and navigate the Barcelona tech ecosystem in one place, with community-submitted events.
There’s room for the less serious ideas, too.
Explore the full collectionCreating places for developers to meet, learn, and build together.
Co-hosted Barcelona's Fixathon with the Norrsken team. Collaborated on program design, participant selection, event dynamics, and served as MC.
Sponsors Norrsken · Lovable
Founder of Barcelona's AI hackathon. Two editions: 60+ hackers in 2024, 150 hackers in 2025. Organized production, promotion, recruiting, sponsor management, and mentor coordination.
Sponsors Hugging Face · Mistral · Algolia · Lingo.dev · Hookdeck · eDreams · Vonage · Lovable · Perk.com · Linkup · Glovo
Organizer of the DevRel meetup in San Francisco, bringing together developer relations professionals to share knowledge and network.
Sponsors RapidAPI · MuleSoft · Courier · Square
APIs, developer experience, AI, and lessons from building in public.
(Spanish) Podcast conversation on Innosfera about vibecoding: how AI is changing how software is built, the limits, and what it means for engineers.
(French) Keynote on how AI is reshaping software development, rapid prototyping, and the role of engineers in product teams.
Lessons from building dozens of AI-assisted projects in public — how vibecoding is reshaping the engineer's workflow.
Building expertise through education and hands-on experience
Barcelona, Spain
Developer Advocate for SLNG.ai, a platform building voice agents, TTS and STT infrastructure. Building the developer foundation with documentation, SDKs, and agent skills; representing the company at hackathons and organizing workshops.
San Francisco, CA | Barcelona, Spain
Hosted developer webinars and livestreams reaching 500+ viewers, expanded app ecosystem to 10K+ apps, built strategic integrations
San Francisco, CA
Delivered technical presentations at international conferences with 500+ attendees, led on-stage sessions and community workshops
San Francisco, CA | Barcelona, Spain
Organized APIStrat Conference with 300+ attendees and API Meetup Barcelona, hosted monthly community events engaging 100+ developers
Advanced studies in Computer Science and technology
International exchange program in Computer Science
Videos, talk recordings, and the process behind the projects.
Watch latest videoCheck out my latest video content and tutorials.
A tool to build, a community to grow, or an idea worth sharing. I'd love to hear about it.