add some setup docs

README.md

@@ -0,0 +1,29 @@
+# ELM (EZGG LAN Manager)
+
+ELM is the successor of [EZGG LAN Manager](https://git.ezgg-ev.de/Vereins-IT/ezgg-lan-manager) with an overhauled UI and a document-oriented database instead of SQL.
+
+# Development Setup
+
+## Local
+
+- Install Python requirements via `pip install -r requirements.txt`.
+- Start A MongoDB (Version 8)
+- Load clean dump via `mongorestore --uri="mongodb://localhost:27017" /path/to/clean_dump`
+- Create user for DB
+
+```js
+use admin
+
+db.createUser({
+  user: "elm_user",
+  pwd: "elm_password",
+  roles: [ { role: "root", db: "admin" } ]
+})
+```
+- Edit config accordingly
+
+## Docker
+
+- Change `docker-compose.yaml` entrypoint as needed (remove `--public` and `--release` usually) 
+- Build and run `docker-compose.yaml`
+- Load clean dump via `mongorestore --uri="mongodb://user:password@localhost:27017" /path/to/clean_dump`