docs: added proper readme

README.md

@@ -1,6 +1,63 @@
-## todo
+# Wake-On-Lan Dashboard
 
-- separate data access into repositories
-- (possibly switch database away from LowDB)
-- make /sessions
-- make user dropdown work with keyboard navigation
+![Preview of the panel](images/preview.png)
+
+## Features
+
+- Send [magic packets](https://en.wikipedia.org/wiki/Wake-on-LAN#Magic_packet) to any device on the network on which the panel is hosted to wake them up
+  - If necessary, customize broadcast IP, port and the amount of packets sent
+- Users management and groups management with device access based on user permissions or on group permissions
+
+## Configuration
+
+Copy and rename `.env.example` to `.env` and customize it to your needs.
+
+The different options are docummented directly in [`.env.example`](.env.example).
+
+## Usage
+
+<details>
+<summary>The easy way - building and running on the same machine</summary>
+
+**Node version < 20.6** - Run:
+
+- `npm run build`
+- `npm i dotenv`
+- `node -r dotenv/config build`
+
+**Node version >= 20.6** - Run:
+
+- `npm run build`
+- `node --env-file=.env build`
+</details>
+
+<details>
+<summary>The longer way - building and running on different machines</summary>
+
+> Use this if like me, you'll be running this on an old Android phone running Termux that stays at your home
+
+### On the Builder machine
+
+Run `npm run build`
+
+Then, copy `/data`, `/build`, `package.json`, `package-lock.json` and `.env` into a folder on the runner machine.
+
+### On the Runner machine
+
+In the folder in which you copied the files:
+
+**Node version < 20.6** - Run:
+
+- `npm ci --omit dev`
+- `npm i dotenv`
+- `node -r dotenv/config build`
+
+**Node version >= 20.6** - Run:
+
+- `npm ci --omit dev`
+- `node --env-file=.env build`
+</details>
+
+## Original Usecase
+
+I made this to turn on my gaming computer remotely when I'm away, and play it from Parsec on my laptop :3