Automatically generate an email address from the current Safari page. Useful for signing up for services.

domain_from_url.js

// Make sure to run `yarn add tld-extract` / `npm install tld-extract`
const { exec } = require("child_process");
var tldParser = require("tld-extract");

exec(
  "osascript -e 'tell app \"safari\" to get the url of the current tab of window 1'",
  (_error, stdout) => {
    try {
      const parsedDomain = tldParser(stdout);
      const regex = new RegExp(`.${parsedDomain.tld}`);
      console.log(parsedDomain.domain.replace(regex, ""));
    } catch (error) {
      console.log("signup");
      return;
    }
  }
);

espanso.yaml

matches:
  - trigger: ":EM"
    replace: "{{domain}}@[YOUR DOMAIN HERE]"
    vars:
      - name: domain
        type: script
        params:
          args:
            - node
            - path to domain_from_url.js

This means you can type :EM while on GitHub, and it will replace that with github@yourdomain.com.

I have used this for a few years now, and it's been awesome. 1Password Masked Emails, and iCloud Hide My Email are awesome, but I find them super clunky to use compared to this.