Flush out readmes

README.md

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 # eaapi
 
+## DISCLAIMER
+
+**WARNING!**
+
+This is research-quality code, intended for research. Use of this code for anything other than that
+is strongly discouraged unless you know what you're doing. The intention here is to provide an
+example of how the concepts in [my docs](https://bsnk.me/eamuse/) can be implemented, not to
+provide a production-ready reference implementation.
+
+There are no licenses on this repository. This is an intentional decision. If you have a legitimate
+use for this codebase, please get in touch first.
+
+This software is provided without warranty of any kind, express or implied. If you use it and
+manage to brick an arcade machine or cause similar silly damage, don't come crying.
+
+## Keys
+
 In order to run this code, some encryption keys need loaded in. I have opted to not include them in
 this repo because I didn't really feel like doing that. May or may not change that stance later.
 
 For now, copy `eaapi/keys.template.py` to `eaapi/keys.py`, and fill in the blanks. If you're
 following along with docs, you already have the values you need. Otherwise, I trust you can figure
 out somewhere to find them. `CARDCONV_KEY` is only required if you plan to make use of `cardconv`.
+
+**Note:** If, for whatever reason, you are using this codebase but not interacting with Bemani
+games or services, consider instead picking your own keys rather than using the real ones. `EA_KEY`
+can be any length, `CARDCONV_KEY` should be 24 bytes.
+
+## Why is `eaapi.server` a submodule?
+
+This repository is intended to serve as an example implementation, and nothing something that
+should be used. For that reason, I'm not currently making the parts of the codebase that implement
+HTTP, routing, etc. public as they don't further this goal, and would encourage inappropriate use.