Blog

Automating tutor operations — attendance, invoicing, and class reports

Comparison

"Pokémon Pocketpair" Sold 2.2 Million Copies in 4 Days. Your Tutoring Admin Work Can Be "Cleared" in 5 Minutes | How to Automate Schedule Management

While Nintendo's latest title sold 2.2 million copies in 4 days, private tutors are battling end-of-month admin work. Automate your schedule management, and you can "clear" it all in 5 minutes too.

2026-03-30 Dev Story

How Handing Our Discord Bot's Code to Claude Code Shrunk It from 1,376 Lines to 480

We took a 1,376-line Discord Bot down to 480 lines. The secret? "Don't make the Bot smart." Delegating everything to the AI side made both the code and maintenance dramatically simpler.

2026-03-25 Development

[Part 5] Dev Tools for a Non-Coder — How Cloudflare Workers & wrangler Helped Me Break Through GAS Limitations

GAS has a 6-minute wall. I migrated to Cloudflare Workers to break through it. The incredibly generous free tier blew me away.

2026-03-30 Dev Story

I Thought I Hit 4,000 PVs — Turns Out Only 530 Were Real Users | Don't Get Fooled by Analytics as an Indie Developer

I was thrilled to see "4,000+ PVs!" — then realized 3,691 were API requests and only 530 were real users. A cautionary tale from an indie developer who got fooled by the numbers.

2026-03-25 Efficiency Tips

I Joked on April Fools' That "Invoices Will Arrive Automatically" — Turns Out It Was True | Automating Parent Communication & Invoicing for Tutors

"Invoices will arrive automatically" — this isn't an April Fools' prank. Discover how the Kagemusha System automates parent communication and invoice creation for private tutors at just $5/month.

2026-03-29 Development

[Part 4] A Non-Coder's Development Environment — How It All Started with Google Apps Script & clasp

If you have a Google account, you can start programming for free. The Kagemusha System began right here.

2026-03-29 Efficiency Tips

In the Age of "Guilty Soda," It's Time Tutors Ditched Their Own "Guilty Manual Work" | How to Automate Student Management

"Guilty Soda" may be trending, but for private tutors, the real guilt is that handwritten student management notebook. Here's how to automate 10 hours of admin work per month.

2026-03-28 Dev Story

Giving AI a "Memory" Completely Transformed My Development Experience | Building a Memory System for Claude Code

AI is smart. But every session starts with "Nice to meet you." When I gave Claude Code a memory system, my development workflow changed dramatically.

2026-03-25 Development

[Part 3] A Non-Coder's Dev Environment — The Peace of Mind of "Undo That" with Git

Break your code and revert in an instant. Git = save points for development. Here's the bare minimum a non-coder needs to know.

2026-03-28 Dev Story

I Sent 44 Sales Emails and Got Zero Replies | What an Indie Developer Learned About SaaS Sales

A tutor with zero programming experience built a SaaS product. Then sent 44 sales emails. Zero replies. From there, he took on the challenge of 94 international emails—an unfiltered sales log from an indie developer.

2026-03-25 General

Kanto Bus Threatens to Strike! Isn't It Time to Strike Against Your Tutoring "Paperwork" Too?

Kanto Bus's 24-hour strike threat made headlines. Drivers spoke up against low wages and long hours. But wait—as an independent tutor, haven't you ever looked at your end-of-month paperwork and thought, "I can't take this anymore"?

2026-03-27 Development

[Part 2] A Development Environment for Non-Coders — Node.js & npm Basics: Nothing Works Without These

Claude Code and Wrangler won't run? That might be because you don't have Node.js installed. Here's a guide to the essential "foundation" every beginner needs to set up first.

2026-03-27