Marcin Piekarski 🇦🇺
@codewithmarcin
Coding since '98 from JS to React. I build projects & guide new devs. Follow for a journey of creation! 👨💻🛠️
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Just released an 8+ hour Next.js 16 Full-Stack Course! Auth, caching, server actions, file uploads, DB patterns & plenty more 👀 and the entire backend is powered by @convex 🚀
All you need to setup payments is: npm install "@convex-dev/stripe" Link down below 👇
Learn how to integrate @Stripe with Convex in 10 minutes with the new Stripe Component. @Rasmic cooked with this one. youtube.com/watch?v=-S4iHT…
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Integrate Stripe with Convex in 10 mins (Stripe Component)
Power users, we see you. 👀 Usage has been growing exponentially, and we watched many of you hit your monthly limits early, leaving you stuck waiting for the reset. That ends today. Introducing Daily Quotas. 🔄 Your quota now resets every single day at midnight GMT. This…
holy shit, this is the most beautiful react app I've seen openDAW: a next-generation web-based Digital Audio Workstation — link to github below
try the frontend design skill to make beautiful green field apps! open claude code and run these two commands: /plugin marketplace add anthropics/claude-code /plugin install frontend-design@claude-code-plugins excited to see what you build
We put together a prompting guide for Claude Opus 4.5 based on extensive internal testing by our research and applied AI teams. Here's what we've learned so far about getting the best results:
🎉🎉 Happy Black Friday week! The brand new Database School is live! And the free 39-video series Introduction to Postgres is also available now! Thanks to @supabase for making this free! As for the design...
Gemini 3 for developers🚀 we created a new playlist to teach about API features, vibe coding, agents, and more with @nikitanamjoshi & @SmithaKolan :)
Prisma 7 is here! 🦀 Rust-free Prisma Client as the default 💪 90% smaller bundle size & 3x faster queries 🔌 Direct connections to Prisma Postgres We've been building towards this for months, so let's see what's in this release 🧵
Today, we have an open-source launch for you. Announcing React Email 5.0. 1. Dark Mode Switcher 2. Tailwind 4 support 3. Resend Integration 4. 8 New Components
Here's my beginner's lecture series for RAG, Vector Database, Agent, and Multi-Agents: Download slides: 👇 * RAG: byhand.ai/p/beginners-gu… * Agents: byhand.ai/p/beginners-gu… * Vector Database: byhand.ai/p/beginners-gu… * Multi-Agents: byhand.ai/p/beginners-gu… --- 100% original,…
two years ago I created this Prompt Engineering Crash Course, which has been watched by 200k people :) I might create a new version (esp. for reasoning models), but imo the fundamental principles & tips are still a good starting points for learning AI. Link & cookbook below
📢 We're hosting the 5-Day AI Agents Intensive course with Google on November 10 - 14. This no-cost course is designed to help you explore the foundations and practical applications of AI agents. Registration closes tomorrow at 11:59pm PT: rsvp.withgoogle.com/events/google-…
If you want to know more about a web page, you could go to DevTools or an SEO auditing tool. But what if you want instant info, without having to leave your browser? In this tutorial, Hitesh helps you build a Chrome extension that analyzes any web page using JavaScript and…
Nano Banana + N8N = AI Creatives Factory This AI system creates scroll-stopping visuals at scale using Google's newest image model. No designers. No agencies. No $50K creative budgets. Just endless professional-grade ads that look like top brands made them. Here's how it…
Announcing login․new, the fastest way to set up auth. Just pick your auth providers, and click Create Pull Request. that's it. Currently supporting all Next․js projects, with preliminary support for React and vanilla JS. Try it out!
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