That said i wish if any part will be kept secret is not going to be any core functionalities.
All the code will be released to GitHub at some point. As of now we're just working in a private repository until each section passes a security audit. We plan on having a community driven group, essentially, anybody who has the required skills is able to join and contribute to various different tasks. We also plan to release the Devnet this quarter so by then there will definitely be code released to Github for the public.
Sounds quite reasonable. I think its better to release code on Github which is much robust to maximize effectiveness and efficiency in development.