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Mario Hayashi profile picture

Mario Hayashi

Building products with AI. Indie maker

Education

Imperial College London

Work

Software Engineer at Tugboat Coding

The Factory Must Grow (Part III): Stopping the AI Agent Production Line Toyota-style

The Factory Must Grow (Part III): Stopping the AI Agent Production Line Toyota-style

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9 min read

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The Factory Must Grow (Part II): From Spaghetti AI Agent Orchestrator to a Main Bus

The Factory Must Grow (Part II): From Spaghetti AI Agent Orchestrator to a Main Bus

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10 min read
The Factory Must Grow: I Replaced Myself With AI. Now What?

The Factory Must Grow: I Replaced Myself With AI. Now What?

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6 min read
An autonomous dev pipeline for one

An autonomous dev pipeline for one

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6 min read
Using AI to make Xero expense auditing fast, cheap, and (almost) fun

Using AI to make Xero expense auditing fast, cheap, and (almost) fun

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6 min read
I Set Up an AI Personal Assistant with OpenClaw

I Set Up an AI Personal Assistant with OpenClaw

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6 min read
Better AI code with strong constraints: Ban it() for it.each()

Better AI code with strong constraints: Ban it() for it.each()

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4 min read
7 Prompt UX Patterns to Help You Make Quicker Decisions with AI

7 Prompt UX Patterns to Help You Make Quicker Decisions with AI

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4 min read
How I Use Cursor (Now with GPT-5)

How I Use Cursor (Now with GPT-5)

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3 min read
How I Use AI Every Day (as a Software Engineer + Indie Maker Making Shopify Apps)

How I Use AI Every Day (as a Software Engineer + Indie Maker Making Shopify Apps)

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7 min read
Back in the Fold: My Return to Building in Public (and Doing It Better This Time)

Back in the Fold: My Return to Building in Public (and Doing It Better This Time)

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3 min read
I Built a Whole App by Vibe Coding with AI — And It Changed How I Think About Software

I Built a Whole App by Vibe Coding with AI — And It Changed How I Think About Software

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3 min read
Trade-offs leading tech at early-stage startups

Trade-offs leading tech at early-stage startups

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5 min read
10 things they don't teach you about AWS

10 things they don't teach you about AWS

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2 min read
Do web/mobile app copy changes get handed over to you in Notion/Sheets?

Do web/mobile app copy changes get handed over to you in Notion/Sheets?

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1 min read
Write copy in Notion, export to JSON

Write copy in Notion, export to JSON

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1 min read
Made a blog on software contracting/freelancing

Made a blog on software contracting/freelancing

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1 min read
Where to start with SQL? A few posts to help beginners

Where to start with SQL? A few posts to help beginners

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1 min read
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