A simple mail merge script (Apps Script on Google Sheets/Gmail)
Vibe coded with Claude and a bit of ChatGPT.
Instructions: In a new Google sheet, go to Extensions in the menu, click on Apps Script. In the new tab, delete all the code that may be there and paste the below, Hit the save icon, and then Run.
Go to the sheet and reload it, then a new menu item called Mail Merge will appear.
It will take a draft you prepared within Gmail, and send it out to whatever contacts you list.