TIL how to compose a URL to Gmail to pre-populate an email compose window, for really lightweight automated-assisted email sending https://til.simonwillison.net/google/gmail-compose-url
Generating URLs to a Gmail compose window

I wanted to send out a small batch of follow-up emails for workshop attendees today, and I realized that since I have their emails in a database table I might be able to semi-automate the process.

@simon does this not work with a standard mailto:... link? That should work with every email provider/app/etc rather than just Google.
@groxx mailto: links only work with Gmail if you add an extra browser extension - this isn't meant as a general solution for other people, this is for my specific workflow