Ask HN: How do you manage env variables and secrets?

Man, I'm tired of this topic. I have gitlab CI, local environments, keychain, keepass, gcp, aws and a whole bunch of other places where some of my env variables stored. Furthermore, Expo apps, for example, can't pull .env files, so I have to write bash scripts to create js files. This hurts my brain.

I want to have a cozy place where I store all my variables and secrets safely per project per environment. I want to share it with my team, CI servers etc. I want to just specify a single key: the environemnt title. And all the variables should be pulled from somewhere. Is there such tool anywhere on the internet???