# Welcome to Optimistic Ethereum
You can see the documentation table of contents on the left sidebar.
|What do you want to do?||You should read|
|Use apps on Optimistic Ethereum||User Docs|
|Administer operations for an app||The above plus Infrastructure|
|Develop an app||The above plus Developer Docs|
|Understand why this is safe and cheap||Protocol Specs|
Work in Progress™
Our documentation, like most things in the world, is imperfect. If you have questions or feel like something is missing feel free to ask in our Discord server (opens new window) where we (and our awesome community) are actively responding, or open an issue (opens new window) in the GitHub repo for this site.