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Card 733 of 9752026-09-23 issue

Observed arrival · 2026-09-23

Sidelab’s tools for Japan’s SES freelancers

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Editorial interest 78/100 Selection signal · not a rating of the site

A solo maker sells spreadsheet, Notion, and Python tools for automating freelance SES invoicing, timesheets, and project management.

Landing page captured for the 2026-09-23 issue.
For
Freelance SES workers in Japan
Worth noticing
The invoice sheet handles upper/lower and midpoint settlement bands, then batches xlsx invoices for multiple engineers.

Field notes

The invoice workflow stores settlement terms in a contract master and generates xlsx invoices in batches. The timesheet tool pairs a spreadsheet with mobile input, then maps recorded hours to the client’s specified Excel template. The maker says the products began as custom work and were later turned into templates; one-week setup-question support is offered, with individual tax advice explicitly excluded.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade

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Landing page observed 2026-09-23. The live site may have changed.