Logo Design
Modern, memorable visual identities for brands that actually want to stand out.
Available · 2026
Matheus
Nicolas
Known as TzDev. I design thumbnails and logos, and code web apps, mobile apps and APIsend-to-end while building Adventure AI. My work has driven 500M+ YouTube viewsfor the world's biggest creators.
500M+YouTube views
130M+Subscribers reached
20+Top-tier creators
2Apps in the works
— What I do
Services
From idea to shipped product — design, code, and strategy.
Vibe Coding
I code apps and websites end-to-end — from idea to shipped product, fast and intentional with AI in the loop.
YouTube Thumbnails
Click-driving thumbnails for serious creators. 500M+ views generated across top-tier channels.
Landing Pages
High-converting pages. Fast, responsive, and designed to sell.
Mobile Apps
Cross-platform iOS and Android apps. From wireframe to App Store — performant and polished.
Backend & APIs
REST and serverless APIs, databases, auth, integrations — robust servers built to scale with the product.
— Portfolio
Thumbnails that convert
Over 500M+ YouTube views driven — from Like Nastya (130M+ subs) to Khalid Al Ameri, Corey Funk, Koreannosh, and Hudson Matter.
— Trusted by
Creators I've worked with
100+ clients served — from channels with millions of subscribers to billions of impressions, they trust my thumbnails to drive clicks.
ClientLike Nastya130M+ subscribers
ClientKhalid Al AmeriTop MENA creator
ClientCorey FunkAction sports
ClientKoreannoshLifestyle
ClientHudson MatterEntertainment
— Building now
Projects
What I'm shipping at the moment.
Adventure AI
AI platform for crafting interactive adventures and experiences. Combines storytelling, automation, and artificial intelligence into a single product.
AISaaSWebNext.js
Visit adventuregen.aiOther applications
Multiple apps in parallel — always testing new ideas.
MobileWeb
Thumbnails & Branding
Full identity packages and thumbnails for creators and brands.
DesignBranding
High-converting websites
Landing pages and marketing sites built with Next.js and Tailwind — focused on speed, performance, and identity.
Next.jsTailwindTypeScriptVercel
— About
Building at the speed of curiosity.
I'm Matheus Nicolas, but you can call me TzDev. I'm 23 and I mix design and code to turn ideas into real products.
My thumbnails have driven over 500M YouTube views for top creators including Like Nastya (130M+ subscribers), Khalid Al Ameri, Corey Funk, Koreannosh, and Hudson Matter.
Right now I'm building Adventure AI and shipping web apps, mobile apps, APIs and backend servers end-to-end — alongside thumbnails, logos and landing pages in vibe codingmode — fast, intentional, and with identity.
On the AI side, I fine-tune pre-trained models and run advanced workflows in ComfyUI — building custom pipelines for image generation, identity and style transfer.
Good product is the sum of aesthetics, performance, and story.
The dream? Build a 🦄 unicorn startup from scratch.
Next.jsReactTypeScriptTailwindReact NativeNode.jsREST APIsPostgreSQLAI / Fine-tuningComfyUIFigmaIllustratorDesignBranding
Vibe Coding500M+ ViewsAdventure AILike NastyaKhalid Al AmeriCorey FunkKoreannoshHudson MatterYouTube ThumbnailsLanding PagesWeb AppsMobile AppsAPIsBackendLogosBrandingNext.jsAI ProductsVibe Coding500M+ ViewsAdventure AILike NastyaKhalid Al AmeriCorey FunkKoreannoshHudson MatterYouTube ThumbnailsLanding PagesWeb AppsMobile AppsAPIsBackendLogosBrandingNext.jsAI Products
— ContactGot an idea?
Got an idea?
Let's build it.
Hit me up for your logo, your thumbnail, your landing page — or your next product.