add redis, game icons and fix readme

README.md

@@ -2,12 +2,20 @@
 
 A cool little web app that shows your Discord profile, current activity, and more. Built with Bun and EJS.
 
-## Prerequisite: Lanyard Backend
+## Requirements
+
+This project relies on the following services to function correctly:
+
+### 1. Lanyard Backend
 
 This project depends on a self-hosted or public [Lanyard](https://github.com/Phineas/lanyard) instance for Discord presence data.
-
 Make sure Lanyard is running and accessible before using this profile page.
 
+### 2. Redis Instance
+
+A Redis-compatible key-value store is required for caching third-party data (e.g., SteamGridDB icons).
+We recommend using [Dragonfly](https://www.dragonflydb.io/) as a high-performance drop-in replacement for Redis.
+
 ---
 
 ## Getting Started
@@ -34,9 +42,10 @@ cp .env.example .env
 |--------------------|--------------------------------------------------|
 | `HOST`             | Host to bind the Bun server (default: `0.0.0.0`) |
 | `PORT`             | Port to run the server on (default: `8080`)      |
+| `REDIS_URL`        | Redis connection string                          |
 | `LANYARD_USER_ID`  | Your Discord user ID                             |
 | `LANYARD_INSTANCE` | Lanyard WebSocket endpoint URL                   |
-| `BADGE_API_URL`    | Uses the [badge api](https://git.creations.works/creations/badgeAPI) only required if you want to use badges
+| `BADGE_API_URL`    | Uses the [badge api](https://git.creations.works/creations/badgeAPI) only required if you want to use badges |
 
 #### Optional Lanyard KV Vars (per-user customization)