All these are part of a different mistake - lack of common culture amount the coders. It’s really really hard, and often antithetical to the politics of the or

All these are part of a different mistake - lack of common culture amount the coders. It’s really really hard, and often antithetical to the politics of the org, but having a common area (email, actual physical meetings) between the “tech leads” - so that’s one in 8 to one in twenty devs, is vital. Sharing code, ideas, good and bad etc is possible - but it requires deliberate effort