Practical Apps Script guides

Build a tiny HtmlService sidebar your teammates will actually click

Find and flag duplicate rows before you push upstream

Pause a nightly job without deleting the trigger

Give non-technical teammates errors they can act on

Simple triggers vs installable triggers (when onEdit lies to you)

Treat a sheet like a job queue (claim → work → done)

Brief NitroGAS Co-Pilot so you get working Apps Script

Clone a template sheet for every new client

Email yourself when the nightly job fails

Map columns by header, not by letter

Add a Dry Run switch before you write