If your AES key is needed on servers or in dev environments, you'll have to give it away to others on your team, and then keep it in sync if it changes, unless

If your AES key is needed on servers or in dev environments, you'll have to give it away to others on your team, and then keep it in sync if it changes, unless you're working alone. The question is, how will you do it? Will you put it in .env files? In the git repo? Will you email it around? Slack it around? Use a homemade solution?