[croo]

I agree with the other commenters that if all you have are juniors this will cause problems and - unless some of them are more than what meets the eye - you are doomed. I was however once in the shoe of your Devs and I may have a few pointers that you can do that helps them, regardless of how successful your product will be.

0. Get a senior programmer next to them to be a tech lead. (Yeah yeah I know..)

1. Describe the problems they need to solve as detailed as you can then trust them as much as you dare to bring a solution. Do not try to invent/describe the solution. This helps critical thinking and independence.

2. If anything is finished, be happy for it and communicate your happiness. This gives them direct contact to a person whose problems they can solve and is a great motivator.

3. Get them an udemy or similar account and try to set together a learning/development path that interests them and can be used in their daily tasks. This helps gaining knowledge.

4. Praise them when they hit their goals