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Productivity

Productivity includes tips on how to use tools and software, process optimization, useful references, experience, and mindstate optimization.

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Run Two Claude Code Accounts Side by Side Without Logging Out

Run Two Claude Code Accounts Side by Side Without Logging Out

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8 min read
Sometimes the tool becomes another task

Sometimes the tool becomes another task

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1 min read
Excel for the web Ctrl+L table shortcut and an automatic Total Row

Excel for the web Ctrl+L table shortcut and an automatic Total Row

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2 min read
The Monday/Friday rhythm: a 60-minute weekly system for solo operators

The Monday/Friday rhythm: a 60-minute weekly system for solo operators

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5 min read
The January 15, 2027 estimated-tax check for freelancers: 3 numbers and one shortcut

The January 15, 2027 estimated-tax check for freelancers: 3 numbers and one shortcut

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2 min read
CRM data migration: what breaks, from 9,000 contacts

CRM data migration: what breaks, from 9,000 contacts

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4 min read
Notes from a 2 AM On-Call: Why Our Android CI Containers Silently Froze (And the iptables Rule That Fixed It)

Notes from a 2 AM On-Call: Why Our Android CI Containers Silently Froze (And the iptables Rule That Fixed It)

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2 min read
Different minds only help when they share one brief

Different minds only help when they share one brief

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1 min read
일정 조율을 상태 머신으로 보기: proposed와 confirmed 사이에 필요한 것

일정 조율을 상태 머신으로 보기: proposed와 confirmed 사이에 필요한 것

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1 min read
The handover package: 10 things a client should hold when your project ends

The handover package: 10 things a client should hold when your project ends

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3 min read
A Quote Comparison Needs an Equivalence Policy

A Quote Comparison Needs an Equivalence Policy

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3 min read
Wiring ECC Into Cursor: Where the Harness Pays Off and Where It Bites

Wiring ECC Into Cursor: Where the Harness Pays Off and Where It Bites

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4 min read
EADDRINUSE on macOS: find what holds the port, and stop it safely

EADDRINUSE on macOS: find what holds the port, and stop it safely

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4 min read
Get a desktop ping when Claude Code is waiting on you, with a Notification hook

Get a desktop ping when Claude Code is waiting on you, with a Notification hook

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2 min read
How to Save Web Sources for Research (and Cite Them Later)

How to Save Web Sources for Research (and Cite Them Later)

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8 min read
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