Things we learned at the HashCode 2019.

1. Since you're coding in a team, simultaneously, it's important that you have that set up and tested. This includes things like
   1. Common file system or github repo
   2. Organize yourself, so each can code without hindering the others (preventing them from buildig the code)
   3. Ensure you have the same versions of whatever you're using (IDE, helpers, node, npm, etc.)
2. You'll need to submit your code many times, so it's best to prepare a script which will zip your code (and only your code, not your binaries, etc.) for distribution. This will save critical time.