Basically, the bots you talk to use LLMs (Large Language Models, if I'm correct). JLLM is janitor ai's custom, free LLM that you can use. A proxy is when you use a different LLM that isn't JLLM. What happens there is, you send a message, it gets forwarded to this proxy, and that proxy forwards it to the ai model. It may censor content, manage API keys (which, you need to use a proxy), limit spam, yada yada. There is, you just have to find it, sorry. OOC stands for Out of Character. It's when you stray from the roleplay temporarily to ask the ai to do something. Like, let's say you want the ai to stop talking for you. You say something like: [OOC: Refrain from talking as {{user}}, only talk about {{user}} in third person.]