This FAQ is for advanced questions, only of interest to those working on developing CoCalc.

• Pull Request Checklist

• How do I test stuff involving subscriptions/billing?
• How do I edit a Sage worksheet in raw mode?

Sign up for Stripe.com. Assuming you've made yourself an admin add your test keys on your account settings page. Then restart your hub. Now test using cards at https://stripe.com/docs/testing You can only use each card once even if you've deleted it.

Go to a terminal and type ln -s <name>.sagews <name>.txt; open <name>.txt

Warning: It may seriously confuse the sync system, adversely affecting Timetravel. In any case, last save will update the other one.