Working with Ruby on Rails
In addition to the readme, the presence or absence of good seeds is another element that determines how quickly you can start work on a new project.
Once a new feature has been developed, it's a good idea to write seeds that can be used to test it. There is no need to be too detailed and test all possible scenarios, but it is useful to help new developers have an idea how the application works without having to configure it manually.
Again, for inspiration on how to write seeds, you can see some of the existing projects or ask in #development.
We should always be careful with DB migrations, especially when working on high-traffic applications where a bad migration can easily cause minutes of downtime.
It is a good practice to configure strong_migrations for projects, so that any migrations that could cause downtime are detected before being deployed to production.