Software today is developed by teams, not individuals. Systems custom-fit to an individual programmer are next to useless. You need libraries of common code in order to collaborate effectively without duplicating effort.

See also: Emacs, the ultimate customizer's editor, easily shapeable to your particular needs -- and currently losing badly to Visual Studio Code which is only readily customized with configuration options and third-party packages. When you need to pair or mob, having a common toolset and vocabulary beats having a special-snowflake environment.