New tool? New device? Let’s look past the demo and see what it actually does.
— Tech, testedCODE YOU CAN ACTUALLY RUN
Rainy Tech Lab turns AI, Python and web development into step-by-step projects you can run, test and make your own.
OKAY, SHOW ME THE GOOD STUFFLess guessing. More building. Practical coding tutorials with the steps that matter.
— Code you can followLocal AI, developer tools, and the experiments worth trying on your own machine.
— Straight from the labLaunching a developer tool? Let’s show people what it really does, in a tutorial they’ll actually finish.
— Let’s collaborate⌘ Swift⚛ React◈ Pythonϟ FastAPIAI / local
The technologies we build with, test, and explain.
SERVICES
Collaborations and content for brands that want developers
to actually try their product, plus web & app builds.
▶COLLAB
BRAND COLLABS
Sponsored tutorials and dedicated videos that show developers how your product really works.
- Dedicated YouTube video
- Integration in a tutorial
- Hands-on, honest demo
RNEW VIDEO
CONTENT CREATION
Tutorials, product demos and launch videos made for your own channels.
- Tutorial & demo videos
- Shorts, Reels & TikTok
- Script, edit & voice-over
>_WRITE IT.
WRITTEN CONTENT
Technical articles and step-by-step guides your users can follow and actually run.
- Tutorials & how-tos
- Docs & getting-started guides
- Published on Rainy Tech Lab
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WEB & APP DEVELOPMENT
Websites, dashboards and native iOS apps built around your business.
- Next.js & SwiftUI
- API integrations
- Launch support
START HERE
Practical guides and real experiments for
your next “wait, I can build that?” moment.
AILOCAL FIRST
LOCAL AI ON MAC
Explore models, tools, and experiments that run on your own machine.
READ THE GUIDE →</>AI × CODE
AI CODING AGENTS
Claude Code, Codex, and the practical questions behind the demos.
READ THE ARTICLES →PyBUILD THE API
PYTHON & FASTAPI
Backend guides for turning useful ideas into working applications.
EXPLORE THE GUIDES →⌘TEST. COMPARE.
DEVELOPER TECH
Devices, software, and tools through the eyes of someone who builds.
WATCH THE CHANNEL ↗There’s plenty more: read all the articles or explore Rainy Tech Lab on YouTube.
TESTED, NOT GUESSED.
I’m Rainy, a software engineer and the creator behind Rainy Tech Lab. I explore AI, build software, and share what I learn along the way.
A useful tutorial explains the why. A good product solves a real problem. That’s the thinking behind both the channel and the client work.
I HAVE AN IDEA. LET’S BUILD IT!KEEP EXPLORING
Watch something. Learn something.
Then make something of your own.
Browse all articles: tutorials, tests and how-tos.
Prefer reading? Follow the written guide. More tutorials on the YouTube channel.
GOT AN IDEA?
LET’S MAKE IT REAL.
A tutorial that makes your product click. Content for your channels.
A website or app for your idea.
LET’S TALK
ABOUT YOUR IDEA.
Tell me the essentials and it goes straight to my inbox. I’ll reply by email.
Brand collaborations · Content creation
Written content · Web & app development