Once upon a time, I was working with a team where sharing environment variables was a tedious task. We used to share the env files on private slack channels, which often got outdated and difficult to maintain. That's when I decided to build Tijori, a simple CLI tool that can help manage environment variables for a project across multiple environments.
There are much better options now. Like Doppler. In fact, Tijori is deprecated. It was built as a fun hackathon project to share secrets, somewhat securely.