20 years ago, I was an ASP developer. I could build anything with it.

Then the world moved on. My favorite stack became “legacy”. For a while, I thought my time as a developer was over.

Two years ago, I moved to Osaka and started a small vacation rental business. I loved hosting guests from all over the world, but I hated the daily operations. Answering the same guest messages at 2 AM. Scheduling cleaners. Updating prices manually on 3 platforms. Changing the same listing description in 3 languages.

I looked for software to help. They were either too expensive, too complicated, or didn’t understand how business is actually done in Japan.

So I did what an old programmer does. I opened my laptop.

I started building small tools with Python. First a script to auto-reply to guests. Then a cleaner scheduler. Then a pricing bot.

With AI, everything became 10x faster. What used to take me a month in the ASP days, now takes a weekend. Python + FastAPI + Next.js + AI – this is my new stack.

This website is my new workshop.

I will share everything I build here in the open:
How I automate my Airbnb business, the small tools I make for hosts in Japan, and what I learn re-learning how to code in the age of AI.

This is not a tutorial blog from an expert. It’s a logbook from a builder.

If you are also a host, a solo founder, or an old programmer trying to come back, welcome. Let’s build something useful.

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P.S. I’m currently building a micro-SaaS for Airbnb hosts in Japan. If you run rentals in Osaka, I’d love to chat.