With only 2 developers, CI/CD can be your best friend. Automate the daylights out of testing your code.

Remember to tag your regression tests in some way - any test that is preventing a production bug that actually happened needs to be marked as a ‘regression’ and treated as high priority to keep passing.

Treat all others tests as more art than science. Keep the reliable ones, toss out the brittle ones.

Look for a network traffic recording/replay library for your toolchain. Reusing integration tests as unit tests is a huge time savings.

If you have live data access, build yourself a few charts that represent a typical day. Knowing what “normal” looks like in your database can be priceless on a weird day.

That makes me so happy.

Rarely. Require linear history for the win.