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Hisashi Space

I've run my own company for 20 years and still write all the code myself. No office since 2011. I build the small apps and SaaS tools I needed first, and write up what actually happened.

I control 10+ browsers with AI agents from one terminal. Here is how

I control 10+ browsers with AI agents from one terminal. Here is how

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4 min read

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Regex couldn't sort my sales emails. A yes/no judgment model could

Regex couldn't sort my sales emails. A yes/no judgment model could

Comments
5 min read
Traffic from ChatGPT jumped! Is it because its crawlers now run JavaScript?

Traffic from ChatGPT jumped! Is it because its crawlers now run JavaScript?

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7 min read
X lead gen ads are back: how to collect names and emails without sending anyone off X

X lead gen ads are back: how to collect names and emails without sending anyone off X

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3 min read
What a free press release did for my startup in 5 days, and what I'd do after launch instead

What a free press release did for my startup in 5 days, and what I'd do after launch instead

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5 min read
Traffic from ChatGPT now brings a quarter of our sign-ups. How we track it, and what we changed

Traffic from ChatGPT now brings a quarter of our sign-ups. How we track it, and what we changed

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4 min read
Selling a lifetime deal on AppSumo? You build the code redemption yourself

Selling a lifetime deal on AppSumo? You build the code redemption yourself

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6 min read
Free press release sites in 2026: I sent my startup's launch to 7 of them

Free press release sites in 2026: I sent my startup's launch to 7 of them

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5 min read
How to rename, add and delete Sidekick workspaces after the shutdown

How to rename, add and delete Sidekick workspaces after the shutdown

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9 min read
I made my SaaS usable from ChatGPT and Claude with a single sign in. What adding MCP taught me about the chat window front door.

I made my SaaS usable from ChatGPT and Claude with a single sign in. What adding MCP taught me about the chat window front door.

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6 min read
Your Google sign-in screen may be showing your personal Gmail. Here's how to change the user support email

Your Google sign-in screen may be showing your personal Gmail. Here's how to change the user support email

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4 min read
SPF, DKIM and DMARC all passed. Gmail still sent my mail to spam.

SPF, DKIM and DMARC all passed. Gmail still sent my mail to spam.

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3 min read
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