You need an always online instance that can be federated if you want to own your identity and social graph. If you don't care about that, then you can just crea

You need an always online instance that can be federated if you want to own your identity and social graph. If you don't care about that, then you can just create an account in your instance of choice and then use a wide range of tools to post and retrieve content (including a CLI I believe).