* GitHub and GitLab for private and public repos

* Just switched from GitLab CI to GitHub Actions (as self-hosted runners, especially on Windows, can be flaky)

* MailChimp (free tier)

* Drift for chat support (generous free tier)

* Braintree (similar functionality to Stripe, but also includes PayPal)

* Cloudflare proxying a Digital Ocean droplet running nginx serving a Hugo-built static website

* Sentry.io for error reporting (again, generous free tier, and open source)

* Twilio for an extremely cheap toll-free number

* G suite for email/docs

* Clerky for corporate setup

* Todoist for shared lists