chore: downgrade toml parser

Reviewed-on: #23

.vscode/extensions.json

@@ -7,6 +7,7 @@
     "fill-labs.dependi",
     "mylesmurphy.prettify-ts",
     "edwinhuish.better-comments-next",
-    "dbaeumer.vscode-eslint"
+    "dbaeumer.vscode-eslint",
+    "bradlc.vscode-tailwindcss"
   ]
 }

LICENSE.md

@@ -631,8 +631,7 @@ to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
 
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
+    Copyright (C) 2025  HorizonCode
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by

README.md

@@ -1,3 +1,74 @@
-# EZPPLauncher Tauri
+# EZPPLauncher
 
-Trying to recode this shit with tauri, kms
+**EZPPLauncher** is a custom launcher for the private osu! server [EZPPFarm](https://ez-pp.farm), built with **Rust** and **Svelte** using the [Tauri](https://tauri.app) framework.  
+It enhances the osu! experience with quality-of-life features and integration specifically designed for the EZPPFarm community.
+
+---
+
+## 🖼️ Preview
+
+![EZPPLauncher Preview](./assets/EZPPLauncher-preview.png)
+
+---
+
+## 🚀 Features
+
+- [x] Automatically updates osu! before launching
+- [x] Automatic ingame login
+- [x] Patches the osu! client to show misses in Relax and Autopilot
+- [x] Displays your EZPPFarm stats in the launcher
+- [x] Shows the number of imported beatmapsets
+- [x] Shows the number of imported skins
+- [x] Displays ping to the EZPPFarm server
+- [x] Discord Rich Presence
+- [x] Performance Display Overlay (currently in experimental patcher release stream)
+
+---
+
+## 💻 Supported Platforms
+
+| Platform | Status           |
+| -------- | ---------------- |
+| Windows  | ✅ Supported     |
+| macOS    | ❌ Not supported |
+| Linux    | 🕧 Partially supported (via osu-winello) |
+
+> Currently, only **Windows** is fully supported. Support for other platforms may be considered in the future.
+
+---
+
+## 🛠 Build From Source
+
+### Requirements
+
+- **Rust** (installed via [rustup](https://rustup.rs/) – recommended for Windows)
+- **Cargo** (comes with rustup)
+- **[Bun](https://bun.sh/)** (JavaScript runtime)
+
+### Steps
+
+```bash
+# Install all dependencies
+bun i
+
+# Build the project
+bun run build
+```
+
+After building, the launcher executable will be located at:
+
+```
+src-tauri/target/release/ezpplauncher.exe
+```
+
+---
+
+## 📁 Project Structure (Simplified)
+
+```
+├── src/                    # Frontend (Svelte)
+├── src-tauri/              # Backend (Rust)
+│   ├── tauri.conf.json     # Tauri configuration
+├── package.json            # Bun project config
+└── README.md
+```

bun.lock

@@ -7,7 +7,7 @@
         "@better-fetch/fetch": "^1.1.18",
         "@fontsource/sora": "^5.2.6",
         "@fontsource/space-mono": "^5.2.8",
-        "@iarna/toml": "^3.0.0",
+        "@iarna/toml": "2.2.5",
         "@number-flow/svelte": "^0.3.9",
         "@tailwindcss/typography": "0.5.16",
         "@tailwindcss/vite": "^4.1.11",
@@ -34,6 +34,7 @@
         "@sveltejs/kit": "2.22.2",
         "@sveltejs/vite-plugin-svelte": "5.1.0",
         "@tauri-apps/cli": "2.6.1",
+        "@types/bun": "^1.2.18",
         "@types/crypto-js": "^4.2.2",
         "@types/semver": "^7.7.0",
         "autoprefixer": "10.4.21",
@@ -157,7 +158,7 @@
 
     "@humanwhocodes/retry": ["@humanwhocodes/retry@0.4.3", "", {}, "sha512-bV0Tgo9K4hfPCek+aMAn81RppFKv2ySDQeMoSZuvTASywNTnVJCArCZE2FWqpvIatKu7VMRLWlR1EazvVhDyhQ=="],
 
-    "@iarna/toml": ["@iarna/toml@3.0.0", "", {}, "sha512-td6ZUkz2oS3VeleBcN+m//Q6HlCFCPrnI0FZhrt/h4XqLEdOyYp2u21nd8MdsR+WJy5r9PTDaHTDDfhf4H4l6Q=="],
+    "@iarna/toml": ["@iarna/toml@2.2.5", "", {}, "sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg=="],
 
     "@internationalized/date": ["@internationalized/date@3.8.2", "", { "dependencies": { "@swc/helpers": "^0.5.0" } }, "sha512-/wENk7CbvLbkUvX1tu0mwq49CVkkWpkXubGel6birjRPyo6uQ4nQpnq5xZu823zRCwwn82zgHrvgF1vZyvmVgA=="],
 
@@ -303,6 +304,8 @@
 
     "@tauri-apps/plugin-sql": ["@tauri-apps/plugin-sql@2.3.0", "", { "dependencies": { "@tauri-apps/api": "^2.6.0" } }, "sha512-JYwIocfsLaDWa41LMiZWuzts7yCJR+EpZPRmgpO7Gd7XiAS9S67dKz306j/k/d9XntB0YopMRBol2OIWMschuA=="],
 
+    "@types/bun": ["@types/bun@1.2.18", "", { "dependencies": { "bun-types": "1.2.18" } }, "sha512-Xf6RaWVheyemaThV0kUfaAUvCNokFr+bH8Jxp+tTZfx7dAPA8z9ePnP9S9+Vspzuxxx9JRAXhnyccRj3GyCMdQ=="],
+
     "@types/cookie": ["@types/cookie@0.6.0", "", {}, "sha512-4Kh9a6B2bQciAhf7FSuMRRkUWecJgJu9nPnx3yzpsfXX/c50REIqpHY4C82bXP90qrLtXtkDxTZosYO3UpOwlA=="],
 
     "@types/crypto-js": ["@types/crypto-js@4.2.2", "", {}, "sha512-sDOLlVbHhXpAUAL0YHDUUwDZf3iN4Bwi4W6a0W0b+QcAezUbRtH4FVb+9J4h+XFPW7l/gQ9F8qC7P+Ec4k8QVQ=="],
@@ -313,6 +316,8 @@
 
     "@types/node": ["@types/node@20.19.1", "", { "dependencies": { "undici-types": "~6.21.0" } }, "sha512-jJD50LtlD2dodAEO653i3YF04NWak6jN3ky+Ri3Em3mGR39/glWiboM/IePaRbgwSfqM1TpGXfAg8ohn/4dTgA=="],
 
+    "@types/react": ["@types/react@19.1.8", "", { "dependencies": { "csstype": "^3.0.2" } }, "sha512-AwAfQ2Wa5bCx9WP8nZL2uMZWod7J7/JSplxbTmBQ5ms6QpqNYm672H0Vu9ZVKVngQ+ii4R/byguVEUZQyeg44g=="],
+
     "@types/semver": ["@types/semver@7.7.0", "", {}, "sha512-k107IF4+Xr7UHjwDc7Cfd6PRQfbdkiRabXGRjo07b4WyPahFBZCZ1sE+BNxYIJPPg73UkfOsVOLwqVc/6ETrIA=="],
 
     "@typescript-eslint/eslint-plugin": ["@typescript-eslint/eslint-plugin@8.35.1", "", { "dependencies": { "@eslint-community/regexpp": "^4.10.0", "@typescript-eslint/scope-manager": "8.35.1", "@typescript-eslint/type-utils": "8.35.1", "@typescript-eslint/utils": "8.35.1", "@typescript-eslint/visitor-keys": "8.35.1", "graphemer": "^1.4.0", "ignore": "^7.0.0", "natural-compare": "^1.4.0", "ts-api-utils": "^2.1.0" }, "peerDependencies": { "@typescript-eslint/parser": "^8.35.1", "eslint": "^8.57.0 || ^9.0.0", "typescript": ">=4.8.4 <5.9.0" } }, "sha512-9XNTlo7P7RJxbVeICaIIIEipqxLKguyh+3UbXuT2XQuFp6d8VOeDEGuz5IiX0dgZo8CiI6aOFLg4e8cF71SFVg=="],
@@ -369,6 +374,8 @@
 
     "buffer-builder": ["buffer-builder@0.2.0", "", {}, "sha512-7VPMEPuYznPSoR21NE1zvd2Xna6c/CloiZCfcMXR1Jny6PjX0N4Nsa38zcBFo/FMK+BlA+FLKbJCQ0i2yxp+Xg=="],
 
+    "bun-types": ["bun-types@1.2.18", "", { "dependencies": { "@types/node": "*" }, "peerDependencies": { "@types/react": "^19" } }, "sha512-04+Eha5NP7Z0A9YgDAzMk5PHR16ZuLVa83b26kH5+cp1qZW4F6FmAURngE7INf4tKOvCE69vYvDEwoNl1tGiWw=="],
+
     "callsites": ["callsites@3.1.0", "", {}, "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ=="],
 
     "caniuse-lite": ["caniuse-lite@1.0.30001726", "", {}, "sha512-VQAUIUzBiZ/UnlM28fSp2CRF3ivUn1BWEvxMcVTNwpw91Py1pGbPIyIKtd+tzct9C3ouceCVdGAXxZOpZAsgdw=="],
@@ -397,6 +404,8 @@
 
     "cssesc": ["cssesc@3.0.0", "", { "bin": { "cssesc": "bin/cssesc" } }, "sha512-/Tb/JcjK111nNScGob5MNtsntNM1aCNUDipB/TkwZFhyDrrE47SOx/18wF2bbjgc3ZzCSKW1T5nt5EbFoAz/Vg=="],
 
+    "csstype": ["csstype@3.1.3", "", {}, "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw=="],
+
     "debug": ["debug@4.4.1", "", { "dependencies": { "ms": "^2.1.3" } }, "sha512-KcKCqiftBJcZr++7ykoDIEwSa3XWowTfNPo92BYxjXiyYEVrUQh2aLyhxBCwww+heortUFxEJYcRzosstTEBYQ=="],
 
     "deep-is": ["deep-is@0.1.4", "", {}, "sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ=="],

package.json

@@ -21,7 +21,7 @@
     "@better-fetch/fetch": "^1.1.18",
     "@fontsource/sora": "^5.2.6",
     "@fontsource/space-mono": "^5.2.8",
-    "@iarna/toml": "^3.0.0",
+    "@iarna/toml": "2.2.5",
     "@number-flow/svelte": "^0.3.9",
     "@tailwindcss/typography": "0.5.16",
     "@tailwindcss/vite": "^4.1.11",
@@ -48,6 +48,7 @@
     "@sveltejs/kit": "2.22.2",
     "@sveltejs/vite-plugin-svelte": "5.1.0",
     "@tauri-apps/cli": "2.6.1",
+    "@types/bun": "^1.2.18",
     "@types/crypto-js": "^4.2.2",
     "@types/semver": "^7.7.0",
     "autoprefixer": "10.4.21",

src-tauri/Cargo.lock

@@ -489,7 +489,7 @@ checksum = "d38f2da7a0a2c4ccf0065be06397cc26a81f4e528be095826eee9d4adbb8c60f"
 dependencies = [
  "byteorder",
  "fnv",
- "uuid",
+ "uuid 1.17.0",
 ]
 
 [[package]]
@@ -843,6 +843,19 @@ dependencies = [
  "windows-sys 0.60.2",
 ]
 
+[[package]]
+name = "discord-rich-presence"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75db747ecd252c01bfecaf709b07fcb4c634adf0edb5fed47bc9c3052e7076b"
+dependencies = [
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "serde_repr",
+ "uuid 0.8.2",
+]
+
 [[package]]
 name = "dispatch"
 version = "0.2.0"
@@ -1081,10 +1094,12 @@ dependencies = [
 
 [[package]]
 name = "ezpplauncher"
-version = "3.0.0-beta.1"
+version = "3.0.0-beta.5"
 dependencies = [
+ "discord-rich-presence",
  "hardware-id",
  "md5",
+ "once_cell",
  "open",
  "reqwest",
  "serde",
@@ -3802,7 +3817,7 @@ dependencies = [
  "serde",
  "serde_json",
  "url",
- "uuid",
+ "uuid 1.17.0",
 ]
 
 [[package]]
@@ -4737,7 +4752,7 @@ dependencies = [
  "thiserror 2.0.12",
  "time",
  "url",
- "uuid",
+ "uuid 1.17.0",
  "walkdir",
 ]
 
@@ -4968,7 +4983,7 @@ dependencies = [
  "toml",
  "url",
  "urlpattern",
- "uuid",
+ "uuid 1.17.0",
  "walkdir",
 ]
 
@@ -5475,6 +5490,15 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
 
+[[package]]
+name = "uuid"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
+dependencies = [
+ "getrandom 0.2.16",
+]
+
 [[package]]
 name = "uuid"
 version = "1.17.0"

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ezpplauncher"
-version = "3.0.0-beta.1"
+version = "3.0.0-beta.5"
 description = "EZPPLauncher redefined."
 authors = ["HorizonCode"]
 edition = "2024"
@@ -34,6 +34,8 @@ md5 = "0.8.0"
 tokio = { version = "1.46.1", features = ["full"] }
 open = "5.3.2"
 windows-sys = "0.60.2"
+discord-rich-presence = "0.2.5"
+once_cell = "1.21.3"
 
 [target.'cfg(windows)'.dependencies]
 winreg = "0.55.0"

src-tauri/src/commands.rs

@@ -11,9 +11,11 @@ use tokio::io::AsyncWriteExt;
 use tokio::process::Command;
 use tokio::time::{Duration, sleep};
 
+use crate::presence;
 use crate::utils::{
     check_folder_completeness, get_osu_config, get_osu_user_config, get_window_title_by_pid,
-    set_osu_config_vals, set_osu_user_config_vals,
+    is_net8_installed, is_osuwinello_available, is_wmctrl_available, set_osu_config_vals,
+    set_osu_user_config_vals,
 };
 
 #[tauri::command]
@@ -281,8 +283,6 @@ pub fn set_osu_config_values(
 
 #[tauri::command]
 pub async fn run_osu_updater(folder: String) -> Result<(), String> {
-    let osu_exe_path = PathBuf::from(&folder).join("osu!.exe");
-
     #[cfg(windows)]
     const DETACHED_PROCESS: u32 = 0x00000008;
     #[cfg(windows)]
@@ -291,6 +291,7 @@ pub async fn run_osu_updater(folder: String) -> Result<(), String> {
     let mut updater_process = {
         #[cfg(windows)]
         {
+            let osu_exe_path = PathBuf::from(&folder).join("osu!.exe");
             Command::new(&osu_exe_path)
                 .arg("-repair")
                 .creation_flags(DETACHED_PROCESS | CREATE_NEW_PROCESS_GROUP)
@@ -300,7 +301,7 @@ pub async fn run_osu_updater(folder: String) -> Result<(), String> {
 
         #[cfg(not(windows))]
         {
-            Command::new(&osu_exe_path)
+            Command::new("osu-wine")
                 .arg("-repair")
                 .spawn()
                 .map_err(|e| format!("Failed to spawn updater: {}", e))?
@@ -336,10 +337,8 @@ pub async fn run_osu_updater(folder: String) -> Result<(), String> {
         sleep(Duration::from_millis(500)).await;
     }
 
-    // Wait for updater process to fully exit
     let _ = updater_process.wait().await;
 
-    // Clean up update-related files
     let force_update_files = [".require_update", "help.txt", "_pending"];
     for update_file_name in &force_update_files {
         let path = PathBuf::from(&folder).join(update_file_name);
@@ -371,8 +370,6 @@ pub async fn run_osu(folder: String, patch: bool) -> Result<(), String> {
     /* #[cfg(windows)]
     use std::os::windows::process::CommandExt; */
 
-    let osu_exe_path = PathBuf::from(&folder).join("osu!.exe");
-
     #[cfg(windows)]
     const DETACHED_PROCESS: u32 = 0x00000008;
     #[cfg(windows)]
@@ -381,6 +378,7 @@ pub async fn run_osu(folder: String, patch: bool) -> Result<(), String> {
     let mut game_process = {
         #[cfg(windows)]
         {
+            let osu_exe_path = PathBuf::from(&folder).join("osu!.exe");
             Command::new(&osu_exe_path)
                 .arg("-devserver")
                 .arg("ez-pp.farm")
@@ -391,8 +389,8 @@ pub async fn run_osu(folder: String, patch: bool) -> Result<(), String> {
 
         #[cfg(not(windows))]
         {
-            Command::new(&osu_exe_path)
-                .arg("-devserver")
+            Command::new("osu-wine")
+                .arg("--devserver")
                 .arg("ez-pp.farm")
                 .spawn()
                 .map_err(|e| format!("Failed to spawn updater: {}", e))?
@@ -415,13 +413,6 @@ pub async fn run_osu(folder: String, patch: bool) -> Result<(), String> {
                     .spawn()
                     .map_err(|e| format!("Failed to run patcher: {e}"))?;
             }
-
-            #[cfg(not(windows))]
-            {
-                let _ = Command::new(&patcher_exe_path)
-                    .spawn()
-                    .map_err(|e| format!("Failed to run patcher: {e}"))?;
-            }
         }
     }
 
@@ -443,6 +434,7 @@ pub struct UpdateFile {
 pub async fn get_ezpp_launcher_update_files(
     folder: String,
     update_url: String,
+    update_stream: String,
 ) -> Result<(Vec<UpdateFile>, Vec<UpdateFile>), String> {
     let osu_path = PathBuf::from(folder);
     let client = Client::new();
@@ -450,6 +442,7 @@ pub async fn get_ezpp_launcher_update_files(
     let update_files = client
         .patch(update_url)
         .header("User-Agent", "EZPPLauncher")
+        .query(&[("stream", update_stream)])
         .send()
         .await
         .map_err(|e| e.to_string())?
@@ -542,7 +535,6 @@ pub async fn download_ezpp_launcher_update_files(
                 .await
                 .map_err(|e| e.to_string())?;
 
-            // Emit progress to frontend
             app.emit(
                 "download-progress",
                 UpdateStatus {
@@ -634,3 +626,96 @@ pub fn open_url_in_browser(url: String) -> Result<(), String> {
 pub fn exit(app: AppHandle) {
     app.exit(0x0100);
 }
+
+#[tauri::command]
+pub fn get_platform() -> String {
+    std::env::consts::OS.to_string()
+}
+
+#[tauri::command]
+pub async fn check_for_corruption(folder: String) -> Result<bool, String> {
+    let osu_path = PathBuf::from(folder);
+    let osu_ui = osu_path.join("osu!ui.dll");
+    let osu_gameplay = osu_path.join("osu!gameplay.dll");
+
+    let osu_ui_bak = osu_path.join("osu!ui.dll.bak");
+    let osu_gameplay_bak = osu_path.join("osu!gameplay.dll.bak");
+
+    let required_files = [&osu_ui, &osu_gameplay];
+
+    for file in &required_files {
+        if !file.exists() {
+            return Ok(true);
+        }
+    }
+
+    let bak_files = [&osu_ui_bak, &osu_gameplay_bak];
+    for bak in &bak_files {
+        if bak.exists() {
+            if let Err(e) = fs::remove_file(bak).await {
+                return Err(format!("Failed to delete {}: {}", bak.display(), e));
+            }
+        }
+    }
+
+    Ok(false)
+}
+
+#[tauri::command]
+pub async fn presence_connect() -> bool {
+    presence::connect().await
+}
+
+#[tauri::command]
+pub async fn presence_disconnect() {
+    presence::disconnect().await
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct PresenceStatus {
+    state: Option<String>,
+    details: Option<String>,
+    large_image_key: Option<String>,
+}
+
+#[tauri::command]
+pub async fn presence_update_status(status: PresenceStatus) {
+    presence::update_status(
+        status.state.as_deref(),
+        status.details.as_deref(),
+        status.large_image_key.as_deref(),
+    );
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct PresenceUser {
+    username: Option<String>,
+    id: Option<String>,
+}
+
+#[tauri::command]
+pub async fn presence_update_user(user: PresenceUser) {
+    presence::update_user(user.username.as_deref(), user.id.as_deref());
+}
+
+#[tauri::command]
+pub async fn presence_is_connected() -> bool {
+    presence::has_presence().await
+}
+
+#[tauri::command]
+pub fn has_wmctrl() -> bool {
+    is_wmctrl_available()
+}
+
+#[tauri::command]
+pub fn has_osuwinello() -> bool {
+    is_osuwinello_available()
+}
+
+#[tauri::command]
+pub async fn has_net8() -> bool {
+    is_net8_installed().await
+}

src-tauri/src/lib.rs

@@ -2,17 +2,26 @@
 use tauri::Manager;
 
 pub mod commands;
+pub mod presence;
 pub mod utils;
 use crate::commands::{
-    download_ezpp_launcher_update_files, exit, find_osu_installation, get_beatmapsets_count,
-    get_ezpp_launcher_update_files, get_hwid, get_launcher_version, get_osu_release_stream,
-    get_osu_skin, get_osu_version, get_skins_count, is_osu_running, open_url_in_browser,
-    replace_ui_files, run_osu, run_osu_updater, set_osu_config_values, set_osu_user_config_values,
-    valid_osu_folder,
+    check_for_corruption, download_ezpp_launcher_update_files, exit, find_osu_installation,
+    get_beatmapsets_count, get_ezpp_launcher_update_files, get_hwid, get_launcher_version,
+    get_osu_release_stream, get_osu_skin, get_osu_version, get_platform, get_skins_count,
+    is_osu_running, open_url_in_browser, presence_connect, presence_disconnect,
+    presence_is_connected, presence_update_status, presence_update_user, replace_ui_files, run_osu,
+    run_osu_updater, set_osu_config_values, set_osu_user_config_values, valid_osu_folder, has_osuwinello, has_wmctrl,
+    has_net8
 };
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
+
+    #[cfg(target_os = "linux")]
+    unsafe {
+        std::env::set_var("WEBKIT_DISABLE_DMABUF_RENDERER", "1");
+    }
+
     let mut builder = tauri::Builder::default();
     #[cfg(desktop)]
     {
@@ -25,7 +34,7 @@ pub fn run() {
         }));
     }
 
-    builder
+    let app = builder
         .invoke_handler(tauri::generate_handler![
             get_hwid,
             find_osu_installation,
@@ -45,13 +54,32 @@ pub fn run() {
             is_osu_running,
             open_url_in_browser,
             get_launcher_version,
-            exit
+            exit,
+            get_platform,
+            check_for_corruption,
+            presence_connect,
+            presence_disconnect,
+            presence_update_status,
+            presence_update_user,
+            presence_is_connected,
+            has_osuwinello,
+            has_wmctrl,
+            has_net8
         ])
         .plugin(tauri_plugin_fs::init())
         .plugin(tauri_plugin_dialog::init())
         .plugin(tauri_plugin_shell::init())
         .plugin(tauri_plugin_cors_fetch::init())
         .plugin(tauri_plugin_sql::Builder::default().build())
-        .run(tauri::generate_context!())
-        .expect("error while running tauri application");
+        .build(tauri::generate_context!())
+        .expect("error while building tauri application");
+
+    app.run(|_app_handle, event| {
+        if let tauri::RunEvent::ExitRequested { api, .. } = event {
+            api.prevent_exit();
+
+            tauri::async_runtime::block_on(presence::disconnect());
+            std::process::exit(0);
+        }
+    });
 }

src-tauri/src/presence.rs

@@ -0,0 +1,231 @@
+use discord_rich_presence::{
+    activity::{Activity, Assets, Button, Timestamps},
+    DiscordIpc, DiscordIpcClient,
+};
+use once_cell::sync::Lazy;
+use std::sync::Mutex as StdMutex;
+use std::time::{SystemTime, UNIX_EPOCH};
+use tokio::sync::{mpsc, oneshot};
+use tokio::time::{interval, Duration};
+
+#[derive(Clone, Debug)]
+pub struct PresenceData {
+    pub state: String,
+    pub details: String,
+    pub large_image_key: String,
+    pub large_image_text: String,
+    pub small_image_key: Option<String>,
+    pub small_image_text: Option<String>,
+}
+
+#[derive(Debug)]
+enum PresenceCommand {
+    Connect(oneshot::Sender<bool>),
+    Disconnect(oneshot::Sender<()>),
+    UpdateData(PresenceData),
+    IsConnected(oneshot::Sender<bool>),
+}
+
+struct PresenceActor {
+    receiver: mpsc::Receiver<PresenceCommand>,
+    client: Option<DiscordIpcClient>,
+    data: PresenceData,
+    start_timestamp: i64,
+}
+
+impl PresenceActor {
+    fn new(receiver: mpsc::Receiver<PresenceCommand>) -> Self {
+        let start = SystemTime::now()
+            .duration_since(UNIX_EPOCH)
+            .unwrap()
+            .as_secs() as i64;
+
+        let data = PresenceData {
+            state: "Idle in Launcher...".to_string(),
+            details: "  ".to_string(),
+            large_image_key: "ezppfarm".to_string(),
+            large_image_text: "EZPPFarm".to_string(),
+            small_image_key: None,
+            small_image_text: None,
+        };
+
+        PresenceActor {
+            receiver,
+            client: None,
+            data,
+            start_timestamp: start,
+        }
+    }
+
+    async fn run(&mut self) {
+        let mut update_interval = interval(Duration::from_millis(2500));
+
+        loop {
+            tokio::select! {
+                Some(cmd) = self.receiver.recv() => {
+                    match cmd {
+                        PresenceCommand::Connect(responder) => self.handle_connect(responder).await,
+                        PresenceCommand::Disconnect(responder) => {
+                            self.handle_disconnect(responder).await;
+                        },
+                        PresenceCommand::UpdateData(new_data) => {
+                            self.data = new_data;
+                        },
+                        PresenceCommand::IsConnected(responder) => {
+                            let _ = responder.send(self.client.is_some());
+                        }
+                    }
+                }
+                _ = update_interval.tick() => {
+                    if self.client.is_some() {
+                        self.handle_update().await;
+                    }
+                }
+            }
+        }
+    }
+
+    async fn handle_connect(&mut self, responder: oneshot::Sender<bool>) {
+        if self.client.is_some() {
+            let _ = responder.send(true);
+            return;
+        }
+
+        println!("Actor: Connecting to Discord...");
+        match DiscordIpcClient::new("1032772293220384808").map_err(|e| e.to_string()) {
+            Ok(mut new_client) => {
+                if let Err(e) = new_client.connect().map_err(|e| e.to_string()) {
+                    eprintln!("Failed to connect to Discord: {:?}", e);
+                    let _ = responder.send(false);
+                    return;
+                }
+                self.client = Some(new_client);
+                println!("Actor: Connected successfully.");
+                self.handle_update().await;
+                let _ = responder.send(true);
+            }
+            Err(e) => {
+                eprintln!("Failed to create Discord client: {:?}", e);
+                let _ = responder.send(false);
+            }
+        }
+    }
+
+    async fn handle_disconnect(&mut self, responder: oneshot::Sender<()>) {
+        if let Some(mut client) = self.client.take() {
+            println!("Actor: Disconnecting...");
+            let _ = client.clear_activity().map_err(|e| e.to_string());
+            let _ = client.close().map_err(|e| e.to_string());
+            println!("Actor: Disconnected successfully.");
+        }
+        let _ = responder.send(());
+    }
+
+    async fn handle_update(&mut self) {
+        if let Some(client) = self.client.as_mut() {
+            let mut assets = Assets::new()
+                .large_image(&self.data.large_image_key)
+                .large_text(&self.data.large_image_text);
+
+            if let Some(key) = &self.data.small_image_key {
+                assets = assets.small_image(key);
+            }
+            if let Some(text) = &self.data.small_image_text {
+                assets = assets.small_text(text);
+            }
+
+            let activity = Activity::new()
+                .state(&self.data.state)
+                .details(&self.data.details)
+                .timestamps(Timestamps::new().start(self.start_timestamp))
+                .assets(assets)
+                .buttons(vec![
+                    Button::new(
+                        "Download the Launcher",
+                        "https://git.ez-pp.farm/EZPPFarm/EZPPLauncher/releases/latest",
+                    ),
+                    Button::new("Join EZPZFarm", "https://ez-pp.farm/discord"),
+                ]);
+
+            if let Err(e) = client.set_activity(activity).map_err(|e| e.to_string()) {
+                eprintln!("Failed to set activity, disconnecting: {:?}", e);
+                if let Some(mut client) = self.client.take() {
+                    let _ = client.clear_activity();
+                    let _ = client.close();
+                }
+            }
+        }
+    }
+}
+
+static PRESENCE_TX: Lazy<mpsc::Sender<PresenceCommand>> = Lazy::new(|| {
+    let (tx, rx) = mpsc::channel(10);
+    let mut actor = PresenceActor::new(rx);
+    tokio::spawn(async move { actor.run().await });
+    tx
+});
+
+pub static PRESENCE_DATA: Lazy<StdMutex<PresenceData>> = Lazy::new(|| {
+    StdMutex::new(PresenceData {
+        state: "Idle in Launcher...".to_string(),
+        details: "  ".to_string(),
+        large_image_key: "ezppfarm".to_string(),
+        large_image_text: "EZPPFarm".to_string(),
+        small_image_key: None,
+        small_image_text: None,
+    })
+});
+
+pub async fn connect() -> bool {
+    let (tx, rx) = oneshot::channel();
+    if PRESENCE_TX.send(PresenceCommand::Connect(tx)).await.is_ok() {
+        return rx.await.unwrap_or(false);
+    }
+    false
+}
+
+pub async fn disconnect() {
+    let (tx, rx) = oneshot::channel();
+    if PRESENCE_TX.send(PresenceCommand::Disconnect(tx)).await.is_ok() {
+        let _ = rx.await;
+    } else {
+        println!("Could not send disconnect command; actor may not be running.");
+    }
+}
+
+pub async fn has_presence() -> bool {
+    let (tx, rx) = oneshot::channel();
+    if PRESENCE_TX.send(PresenceCommand::IsConnected(tx)).await.is_ok() {
+        return rx.await.unwrap_or(false);
+    }
+    false
+}
+
+pub fn update_status(state: Option<&str>, details: Option<&str>, large_image_key: Option<&str>) {
+    let mut data = PRESENCE_DATA.lock().unwrap();
+    if let Some(s) = state {
+        data.state = s.to_string();
+    }
+    if let Some(d) = details {
+        data.details = d.to_string();
+    }
+    if let Some(img) = large_image_key {
+        data.large_image_key = img.to_string();
+    }
+    let data_clone = data.clone();
+    let tx = PRESENCE_TX.clone();
+    tokio::spawn(async move {
+        let _ = tx.send(PresenceCommand::UpdateData(data_clone)).await;
+    });
+}
+
+pub fn update_user(username: Option<&str>, id: Option<&str>) {
+    let mut data = PRESENCE_DATA.lock().unwrap();
+    data.small_image_key = id.map(|id_str| format!("https://a.ez-pp.farm/{}", id_str));
+    data.small_image_text = username.map(|s| s.to_string());
+    let data_clone = data.clone();
+    let tx = PRESENCE_TX.clone();
+    tokio::spawn(async move {
+        let _ = tx.send(PresenceCommand::UpdateData(data_clone)).await;
+    });
+}

src-tauri/src/utils.rs

@@ -71,7 +71,6 @@ pub fn set_osu_user_config_vals(
         }
     }
 
-    // Collect indices and keys to update to avoid borrow checker issues
     let mut updates = Vec::new();
     for (i, line) in lines.iter().enumerate() {
         if let Some((existing_key, _)) = line.split_once(" = ") {
@@ -86,7 +85,6 @@ pub fn set_osu_user_config_vals(
         keys_to_add.remove(trimmed_key.as_str());
     }
 
-    // Add new keys that were not found
     for key in keys_to_add {
         if let Some(value) = keys_to_set.get(key) {
             lines.push(format!("{} = {}", key, value));
@@ -139,7 +137,6 @@ pub fn set_osu_config_vals(
         keys_to_add.remove(trimmed_key.as_str());
     }
 
-    // Add new keys that were not found
     for key in keys_to_add {
         if let Some(value) = keys_to_set.get(key) {
             lines.push(format!("{} = {}", key, value));
@@ -177,19 +174,78 @@ pub fn get_osu_config<P: AsRef<Path>>(
 }
 
 #[cfg(not(windows))]
-pub fn get_window_title_by_pid(_pid: Pid) -> String {
-    "".to_string()
+pub fn is_osuwinello_available() -> bool {
+    use std::process::Command;
+    Command::new("osu-wine")
+        .arg("--info")
+        .stdout(std::process::Stdio::null())
+        .stderr(std::process::Stdio::null())
+        .status()
+        .is_ok()
+}
+
+#[cfg(windows)]
+pub fn is_osuwinello_available() -> bool {
+    false
+}
+
+#[cfg(not(windows))]
+pub fn is_wmctrl_available() -> bool {
+    use std::process::Command;
+    Command::new("wmctrl")
+        .arg("-V")
+        .stdout(std::process::Stdio::null())
+        .stderr(std::process::Stdio::null())
+        .status()
+        .is_ok()
+}
+
+#[cfg(windows)]
+pub fn is_wmctrl_available() -> bool {
+    false
+}
+
+#[cfg(not(windows))]
+pub fn get_window_title_by_pid(target_pid: Pid) -> String {
+    use std::process::Command;
+    let find_title = || -> Option<String> {
+        let output = Command::new("wmctrl").arg("-lp").output().ok()?;
+
+        if !output.status.success() {
+            return None;
+        }
+
+        let output_str = String::from_utf8(output.stdout).ok()?;
+
+        for line in output_str.lines() {
+            let parts: Vec<&str> = line.split_whitespace().collect();
+            if parts.len() < 4 {
+                continue;
+            }
+
+            if let Ok(pid) = parts[2].parse::<u32>() {
+                if pid == target_pid.as_u32() {
+                    let title = parts[4..].join(" ");
+                    return Some(title);
+                }
+            }
+        }
+
+        None
+    };
+
+    find_title().unwrap_or_default()
 }
 
 #[cfg(windows)]
 pub fn get_window_title_by_pid(pid: Pid) -> String {
+    use std::ffi::OsString;
+    use std::os::windows::ffi::OsStringExt;
     use std::sync::{Arc, Mutex};
     use winapi::shared::windef::HWND;
     use winapi::um::winuser::{
         EnumWindows, GetWindowTextW, GetWindowThreadProcessId, IsWindowVisible,
     };
-    use std::ffi::OsString;
-    use std::os::windows::ffi::OsStringExt;
 
     extern "system" fn enum_windows_proc(
         hwnd: HWND,
@@ -210,11 +266,11 @@ pub fn get_window_title_by_pid(pid: Pid) -> String {
                     let title_str = title.to_string_lossy().into_owned();
                     if !title_str.is_empty() {
                         *result.lock().unwrap() = Some(title_str);
-                        return 0; // Stop enumeration
+                        return 0;
                     }
                 }
             }
-            1 // Continue enumeration
+            1
         }
     }
 
@@ -228,3 +284,26 @@ pub fn get_window_title_by_pid(pid: Pid) -> String {
     }
     result.lock().unwrap().clone().unwrap_or_default()
 }
+
+pub async fn is_net8_installed() -> bool {
+    use std::process::Command;
+    let output_result = Command::new("dotnet").arg("--list-runtimes").output();
+    match output_result {
+        Ok(output) => {
+            if !output.status.success() {
+                eprintln!(
+                    "Error: `dotnet --list-runtimes` failed with status: {}",
+                    output.status
+                );
+                eprintln!("stderr: {}", String::from_utf8_lossy(&output.stderr));
+                return false;
+            }
+
+            let stdout_str = String::from_utf8_lossy(&output.stdout);
+            stdout_str
+                .lines()
+                .any(|line| line.starts_with("Microsoft.WindowsDesktop.App 8."))
+        }
+        Err(_) => false,
+    }
+}

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "ezpplauncher",
-  "version": "3.0.0-beta.1",
+  "version": "3.0.0-beta.5",
   "identifier": "farm.ezpp.launcher",
   "build": {
     "beforeDevCommand": "bun run vite:dev",

src/app.css

@@ -150,8 +150,18 @@
 @layer base {
   * {
     @apply border-border outline-ring/50;
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    -khtml-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
   }
   body {
     @apply bg-background text-foreground;
   }
+  button:not([disabled]),
+  [role="button"]:not([disabled]) {
+    cursor: pointer;
+  }
 }

src/lib/api/ezpp.ts

@@ -1,4 +1,9 @@
-import type { EZPPUser, EZPPUserInfoResponse, EZPPUserResponse } from '@/types';
+import type {
+  EZPPUser,
+  EZPPUserInfoResponse,
+  EZPPUserResponse,
+  EZPPUSerStatusResponse,
+} from '@/types';
 import { betterFetch } from '@better-fetch/fetch';
 
 const BANCHO_ENDPOINT = 'https://c.ez-pp.farm/';
@@ -54,12 +59,12 @@ export const ezppfarm = {
     }
     return request.data;
   },
-  getUserInfo: async (userId: number) => {
+  getUserInfo: async (userId: number, scope: 'all' | 'info' | 'stats' = 'all') => {
     const request = await betterFetch<EZPPUserInfoResponse>(`${API_ENDPOINT}v1/get_player_info`, {
       timeout,
       query: {
         id: userId,
-        scope: 'all',
+        scope,
       },
       headers: {
         'Content-Type': 'application/json',
@@ -68,4 +73,20 @@ export const ezppfarm = {
     });
     return request.error ? undefined : request.data;
   },
+  getUserStatus: async (userId: number) => {
+    const request = await betterFetch<EZPPUSerStatusResponse>(
+      `${API_ENDPOINT}v1/get_player_status`,
+      {
+        timeout,
+        query: {
+          id: userId,
+        },
+        headers: {
+          'Content-Type': 'application/json',
+          'User-Agent': 'EZPPLauncher',
+        },
+      }
+    );
+    return request.error ? undefined : request.data;
+  },
 };

src/lib/global.ts

@@ -6,9 +6,17 @@ import type { Release } from './types';
 
 export const currentView = writable<Component>(Loading);
 
+export const platform = writable<string>("");
+
 export const launcherVersion = writable<string>('');
 export const newVersion = writable<Release | undefined>(undefined);
 
+export const launcherStreams = writable<string[]>(['stable']);
+export const launcherStream = writable<string>('stable');
+
+export const discordPresence = writable<boolean>(false);
+export const presenceLoading = writable<boolean>(false);
+
 export const currentLoadingInfo = writable<string>('Initializing...');
 
 export const firstStartup = writable<boolean>(false);

src/lib/osuUtil.ts

@@ -1,8 +1,9 @@
 import { invoke } from '@tauri-apps/api/core';
 import type { UpdateFile, UpdateStatus } from './types';
 import { listen } from '@tauri-apps/api/event';
+import { betterFetch } from '@better-fetch/fetch';
 
-const updateUrl = 'https://ez-pp.farm/ezpplauncher';
+const updateUrl = 'https://next.ez-pp.farm/api/ezpplauncher';
 
 export const getHWID = async () => {
   const hwid = await invoke('get_hwid');
@@ -73,8 +74,24 @@ export const runUpdater = async (folder: string) => await invoke('run_osu_update
 export const runOsu = async (folder: string, patch: boolean) =>
   await invoke('run_osu', { folder, patch });
 
-export const getEZPPLauncherUpdateFiles = async (folder: string) => {
-  const result = await invoke('get_ezpp_launcher_update_files', { folder, updateUrl });
+export const getEZPPLauncherStreams = async () => {
+  const resp = await betterFetch<{ streams: string[] }>(updateUrl, {
+    method: 'POST',
+  });
+
+  if (!resp.error) {
+    return resp.data.streams;
+  }
+
+  return undefined;
+};
+
+export const getEZPPLauncherUpdateFiles = async (folder: string, updateStream: string) => {
+  const result = await invoke('get_ezpp_launcher_update_files', {
+    folder,
+    updateUrl,
+    updateStream,
+  });
   if (typeof result === 'object') {
     const [filesToDownload, updateFiles] = result as [UpdateFile[], UpdateFile[]];
     return {
@@ -113,3 +130,12 @@ export const isOsuRunning = async () => {
 
 export const getLauncherVersion = async () => await invoke<string>('get_launcher_version');
 export const exit = async () => await invoke('exit');
+export const getPlatform = async () => await invoke<string>('get_platform');
+export const isOsuCorrupted = async (folder: string) =>
+  await invoke<boolean>('check_for_corruption', { folder });
+export const hasWMCTRL = async () =>
+  await invoke<boolean>('has_wmctrl');
+export const hasOsuWinello = async () =>
+  await invoke<boolean>('has_osuwinello');
+export const hasNet8 = async () =>
+  await invoke<boolean>('has_net8');

src/lib/presence.ts

@@ -0,0 +1,19 @@
+import { invoke } from '@tauri-apps/api/core';
+
+export const connect = async () => await invoke('presence_connect');
+export const disconnect = async () => await invoke('presence_disconnect');
+export const updateStatus = async (status: {
+  state: string;
+  details: string;
+  largeImageKey?: string;
+}) =>
+  await invoke('presence_update_status', {
+    status: {
+      state: status.state,
+      details: status.details,
+      largeImageKey: status.largeImageKey,
+    },
+  });
+export const updateUser = async (user: { username: string; id?: string | null }) =>
+  await invoke('presence_update_user', { user: { username: user.username, id: user.id } });
+export const isConnected = async () => await invoke<boolean>('presence_is_connected');

src/lib/types.ts

@@ -185,3 +185,65 @@ export type Release = {
     browser_download_url: string;
   }[];
 };
+
+export type EZPPUSerStatusResponse = EZPPUserOfflineStatus | EZPPUserOnlineStatus;
+
+type EZPPUserOfflineStatus = {
+  status: string;
+  player_status: {
+    online: false;
+    last_seen: number;
+  };
+};
+
+type EZPPUserOnlineStatus = {
+  status: string;
+  player_status: {
+    online: true;
+    login_time: number;
+    status: {
+      action: EZPPActionStatus;
+      info_text: string;
+      mode: number;
+      mods: number;
+      beatmap: EZPPUserBeatmapStatus | null;
+    };
+  };
+};
+
+type EZPPUserBeatmapStatus = {
+  md5: string;
+  id: number;
+  set_id: number;
+  artist: string;
+  title: string;
+  version: string;
+  creator: string;
+  last_update: string;
+  total_length: number;
+  max_combo: number;
+  status: number;
+  plays: number;
+  passes: number;
+  mode: number;
+  bpm: number;
+  cs: number;
+  od: number;
+  ar: number;
+  hp: number;
+  diff: number;
+};
+
+export enum EZPPActionStatus {
+  AFK = 1,
+  PLAYING = 2,
+  EDITING = 3,
+  MODDING = 4,
+  MULTIPLAYER_SELECT = 5,
+  WATCHING = 6,
+  TESTING = 8,
+  SUBMITTING = 9,
+  MULTIPLAYER_IDLE = 11,
+  MULTIPLAYER_PLAYING = 12,
+  DIRECT = 13,
+}

src/lib/utils.ts

@@ -89,3 +89,14 @@ export const formatBytes = (bytes: number, decimals = 2) => {
 export const openURL = async (url: string) => {
   await invoke('open_url_in_browser', { url });
 };
+
+export const urlIsValidImage = async (url: string) => {
+  try {
+    const request = await fetch(url);
+    if (!request.ok) return false;
+    const contentType = request.headers.get('content-type');
+    return contentType?.startsWith('image/');
+  } catch {
+    return false;
+  }
+};

src/pages/Launch.svelte

@@ -8,11 +8,16 @@
     beatmapSets,
     currentSkin,
     currentView,
+    discordPresence,
+    launcherStream,
+    launcherStreams,
     launcherVersion,
     launching,
     newVersion,
     osuBuild,
     osuStream,
+    platform,
+    presenceLoading,
     serverConnectionFails,
     serverPing,
     skins,
@@ -46,6 +51,7 @@
     numberHumanReadable,
     openURL,
     releaseStreamToReadable,
+    urlIsValidImage,
   } from '@/utils';
   import { fade, scale } from 'svelte/transition';
   import { Checkbox } from '@/components/ui/checkbox';
@@ -84,6 +90,10 @@
     getSkin,
     getSkinsCount,
     getVersion,
+    hasNet8,
+    hasOsuWinello,
+    hasWMCTRL,
+    isOsuCorrupted,
     isOsuRunning,
     isValidOsuFolder,
     replaceUIFiles,
@@ -95,10 +105,13 @@
   import { getCurrentWindow } from '@tauri-apps/api/window';
   import { ezppfarm } from '@/api/ezpp';
   import Hearts from '@/components/ui/effects/Hearts.svelte';
+  import { EZPPActionStatus } from '@/types';
+  import * as presence from '@/presence';
 
   let selectedTab = $state('home');
   let progress = $state(-1);
   let launchInfo = $state('');
+  let launchError = $state<Error | undefined>(undefined);
 
   let selectedGamemode = $derived(
     getGamemodeInt(modeIntToStr($preferredMode), typeIntToStr($preferredType))
@@ -177,9 +190,27 @@
       return;
     }
 
+    if ($platform === 'linux') {
+      if (!(await hasWMCTRL())) {
+        toast.error('Hmmm...', {
+          description: 'wmctrl seems to be missing, please install via AUR.',
+        });
+        launching.set(false);
+        return;
+      }
+      if (!(await hasOsuWinello())) {
+        toast.error('Hmmm...', {
+          description: 'osu-winello seems to be missing, please install it.',
+        });
+        launching.set(false);
+        return;
+      }
+    }
+
     try {
       launchInfo = 'Looking for EZPPLauncher File updates...';
-      const updateResult = await getEZPPLauncherUpdateFiles(osuPath);
+      const updateResult = await getEZPPLauncherUpdateFiles(osuPath, $launcherStream);
+
       if (updateResult) {
         if (updateResult.filesToDownload.length > 0) {
           launchInfo = 'Found EZPPLauncher File updates!';
@@ -203,6 +234,9 @@
       }
     } catch (err) {
       console.log(err);
+      launchError = err as Error;
+      launching.set(false);
+      return;
     }
 
     try {
@@ -216,7 +250,9 @@
       }
 
       const releaseStream = await getReleaseStream(osuPath);
-      let forceUpdate = releaseStream && releaseStream.toLowerCase() !== 'stable40';
+      const osuCorrupted = await isOsuCorrupted(osuPath);
+      let forceUpdate =
+        (releaseStream && releaseStream.toLowerCase() !== 'stable40') || osuCorrupted;
 
       const versions = compareBuildNumbers($osuBuild, streamInfo);
       if (versions > 0 || forceUpdate) {
@@ -305,9 +341,130 @@
       await replaceUIFiles(osuPath, false);
       await new Promise((res) => setTimeout(res, 1000));
       await getCurrentWindow().hide();
+
+      let presenceUpdater: number | undefined = undefined;
+
+      const isPresenceConnected = await presence.isConnected();
+
+      if ($discordPresence && isPresenceConnected) {
+        let osuDetected = false;
+        presenceUpdater = window.setInterval(async () => {
+          if (!osuDetected) {
+            const osuRunning = await isOsuRunning();
+            if (osuRunning) osuDetected = true;
+            return;
+          }
+          if ($currentUser) {
+            const userStats = await ezppfarm.getUserInfo($currentUser.id, 'stats');
+            const userStatus = await ezppfarm.getUserStatus($currentUser.id);
+            if (userStatus?.player_status.online) {
+              let largeImageKey = 'ezppfarm';
+              let details = 'Idle...';
+              let state =
+                userStatus.player_status.status.info_text.length > 0
+                  ? userStatus.player_status.status.info_text
+                  : '  ';
+
+              const gamemode = getModeAndTypeFromGamemode(userStatus.player_status.status.mode);
+              const gamemodeName = getGamemodeName(
+                modeIntToStr(gamemode.mode),
+                typeIntToStr(gamemode.type)
+              );
+
+              switch (userStatus.player_status.status.action) {
+                case EZPPActionStatus.AFK:
+                  details = 'AFK...';
+                  state = '  ';
+                  break;
+                case EZPPActionStatus.PLAYING:
+                  details = 'Playing...';
+                  break;
+                case EZPPActionStatus.EDITING:
+                  details = 'Editing...';
+                  break;
+                case EZPPActionStatus.MODDING:
+                  details = 'Modding...';
+                  break;
+                case EZPPActionStatus.MULTIPLAYER_SELECT:
+                  details = 'Multiplayer: Selecting a Beatmap...';
+                  state = '  ';
+                  break;
+                case EZPPActionStatus.WATCHING:
+                  details = 'Watching...';
+                  break;
+                case EZPPActionStatus.TESTING:
+                  details = 'Testing...';
+                  break;
+                case EZPPActionStatus.SUBMITTING:
+                  details = 'Submitting...';
+                  break;
+                case EZPPActionStatus.MULTIPLAYER_IDLE:
+                  details = 'Multiplayer: Idle...';
+                  state = '  ';
+                  break;
+                case EZPPActionStatus.MULTIPLAYER_PLAYING:
+                  details = 'Multiplayer: Playing...';
+                  break;
+                case EZPPActionStatus.DIRECT:
+                  details = 'Browsing osu!direct...';
+                  state = '  ';
+                  break;
+              }
+
+              if (userStatus.player_status.status.beatmap !== null) {
+                const beatmapCoverImage = `https://assets.ppy.sh/beatmaps/${userStatus.player_status.status.beatmap.set_id}/covers/list@2x.jpg`;
+                const isValidImage = await urlIsValidImage(beatmapCoverImage);
+                if (isValidImage) largeImageKey = beatmapCoverImage;
+              }
+
+              details = `[${gamemodeName}] ${details}`;
+              try {
+                const currentModeStats =
+                  userStats?.player.stats[userStatus.player_status.status.mode];
+                let username = $currentUser.name;
+
+                if (currentModeStats && currentModeStats.rank > 0)
+                  username += ` (#${currentModeStats.rank})`;
+
+                await Promise.all([
+                  presence.updateUser({
+                    username,
+                    id: $currentUser.id.toFixed(),
+                  }),
+                  presence.updateStatus({
+                    details,
+                    state,
+                    largeImageKey,
+                  }),
+                ]);
+              } catch {}
+            }
+          }
+        }, 1000 * 2);
+      }
+
       await runOsu(osuPath, true);
+
       launchInfo = 'Cleaning up...';
       await getCurrentWindow().show();
+      if (presenceUpdater) {
+        window.clearInterval(presenceUpdater);
+        console.log('clearing discord presence...');
+        try {
+          await Promise.all([
+            presence.updateUser({
+              username: '  ',
+              id: null,
+            }),
+            presence.updateStatus({
+              details: '  ',
+              state: 'Idle in Launcher...',
+              largeImageKey: 'ezppfarm',
+            }),
+          ]);
+        } catch {}
+        console.log('discord presence cleared...');
+      }
       await new Promise((res) => setTimeout(res, 1000));
       await replaceUIFiles(osuPath, true);
 
@@ -325,22 +482,54 @@
       const skin = await getSkin(osuPath);
       currentSkin.set(skin);
 
+      if ($currentUser) {
+        const userInfo = await ezppfarm.getUserInfo($currentUser.id);
+        if (userInfo) currentUserInfo.set(userInfo.player);
+      }
+
       launching.set(false);
     } catch (err) {
+      launchError = err as Error;
       console.log(err);
       toast.error('Hmmm...', {
         description: 'Failed to launch.',
       });
       launching.set(false);
-
-      if ($currentUser) {
-        const userInfo = await ezppfarm.getUserInfo($currentUser.id);
-        if (userInfo) currentUserInfo.set(userInfo.player);
-      }
     }
   };
 </script>
 
+<AlertDialog.Root open={launchError !== undefined}>
+  <AlertDialog.Content class="bg-theme-950 border-theme-800 p-0">
+    <div
+      class="flex flex-col items-center justify-center border-b border-theme-800 bg-black/40 rounded-t-lg p-3"
+    >
+      <img class="h-20 w-20" src={Logo} alt="logo" />
+      <span class="font-semibold text-xl">Error on Launch!</span>
+    </div>
+    <div
+      class="flex flex-col items-center text-sm text-center bg-theme-900 border border-theme-800 rounded-lg mx-3 p-3"
+    >
+      {#if launchError}
+        <pre class="text-wrap text-start">{JSON.stringify(
+            launchError,
+            Object.getOwnPropertyNames(launchError),
+            2
+          )}</pre>
+      {:else}
+        Unexpected error
+      {/if}
+    </div>
+    <div class="flex items-center justify-center mb-3">
+      <Button
+        onclick={async () => {
+          launchError = undefined;
+        }}>Close</Button
+      >
+    </div>
+  </AlertDialog.Content>
+</AlertDialog.Root>
+
 <AlertDialog.Root open={$newVersion !== undefined}>
   <AlertDialog.Content class="bg-theme-950 border-theme-800 p-0">
     <div
@@ -636,7 +825,7 @@
   </div>
   <div class="flex flex-col gap-6 w-full h-full bg-theme-900/40 p-6">
     <div
-      class="flex flex-row flex-nowrap h-11 w-full bg-theme-800/50 border border-theme-800/90 rounded-lg p-[4px]"
+      class="flex flex-row flex-nowrap h-11 gap-1 w-full bg-theme-800/50 border border-theme-800/90 rounded-lg p-[4px]"
     >
       <button
         class="w-full flex justify-center items-center font-semibold text-sm rounded-lg {selectedTab ===
@@ -862,11 +1051,18 @@
           >
             <div class="flex flex-col">
               <Label class="text-sm" for="setting-custom-cursor">Patching</Label>
-              <div class="text-muted-foreground text-xs">Shows misses in Relax and Autopilot</div>
+              <div class="text-muted-foreground text-xs">
+                Shows misses in Relax and Autopilot {#if $platform !== 'windows'}<span
+                    class="text-red-500 bg-red-800/20 border border-red-600/20 p-0.5 mx-1 px-2 rounded-lg"
+                    >currently only on windows!</span
+                  >
+                {/if}
+              </div>
             </div>
             <Checkbox
               id="setting-custom-cursor"
-              checked={$patch}
+              checked={$platform === 'windows' ? $patch : false}
+              disabled={$platform !== 'windows'}
               onCheckedChange={async (e) => {
                 patch.set(e);
                 $userSettings.save();
@@ -913,13 +1109,13 @@
             ></Checkbox>
 
             <div class="flex flex-col">
-              <Label class="text-sm" for="setting-cursor-smoothening">Reduce Animations</Label>
+              <Label class="text-sm" for="setting-reduce-animations">Reduce Animations</Label>
               <div class="text-muted-foreground text-xs">
                 Disables some animations in the Launcher to improve performance on low-end devices.
               </div>
             </div>
             <Checkbox
-              id="setting-cursor-smoothening"
+              id="setting-reduce-animations"
               checked={$reduceAnimations}
               onCheckedChange={async (e) => {
                 reduceAnimations.set(e);
@@ -927,9 +1123,29 @@
               }}
               class="flex items-center justify-center w-5 h-5"
             ></Checkbox>
+
+            <div class="flex flex-col">
+              <Label class="text-sm" for="setting-rich-presence">Discord Rich Presence</Label>
+              <div class="text-muted-foreground text-xs">
+                Let other discord users show what you are doing right now 👀
+              </div>
+            </div>
+            <div class="relative">
+              {#if $presenceLoading}
+                <div class="-left-8 absolute" transition:fade>
+                  <LoaderCircle class="animate-spin" />
+                </div>
+              {/if}
+              <Checkbox
+                id="setting-rich-presence"
+                bind:checked={$discordPresence}
+                disabled={$presenceLoading}
+                class="flex items-center justify-center w-5 h-5"
+              ></Checkbox>
+            </div>
           </div>
           <div
-            class="grid grid-cols-[0.7fr_auto] gap-y-5 items-center border-theme-800 pl-6 pr-5 pb-4"
+            class="grid grid-cols-[0.7fr_auto] gap-y-1 items-center border-theme-800 pl-6 pr-5 pb-4"
           >
             <div class="flex flex-col">
               <Label class="text-sm" for="setting-custom-cursor">osu! installation path</Label>
@@ -949,6 +1165,54 @@
                 onclick={browse_osu_installation}>Browse</Button
               >
             </div>
+
+            <div class="flex flex-col">
+              <Label class="text-sm" for="setting-custom-cursor">patcher release stream</Label>
+              <div class="text-muted-foreground text-xs">
+                test different versions of the patcher
+              </div>
+            </div>
+            <div class="flex flex-row w-full">
+              <Select.Root
+                type="single"
+                bind:value={$launcherStream}
+                onValueChange={async (newStream) => {
+                  if (newStream === 'experimental' && !(await hasNet8())) {
+                    launcherStream.set('stable');
+                    toast.error('.NET 8.0 Desktop Runtime not found!', {
+                      action: {
+                        label: 'Download .NET 8.0',
+                        onClick: async () =>
+                          await openURL(
+                            'https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/runtime-desktop-8.0.18-windows-x64-installer'
+                          ),
+                      },
+                    });
+                    return;
+                  }
+                  $userSettings.value('patcherStream').set(newStream);
+                  launcherStream.set(newStream);
+                  await $userSettings.save();
+                }}
+              >
+                <Select.Trigger
+                  class="border-theme-800 bg-theme-950 !text-muted-foreground font-semibold"
+                >
+                  <div class="flex flex-row items-center gap-2 font-normal text-foreground">
+                    {$launcherStream}
+                  </div>
+                </Select.Trigger>
+                <Select.Content class="bg-theme-950 border border-theme-950 rounded-lg">
+                  {#each $launcherStreams as stream (stream)}
+                    <Select.Item value={stream}>
+                      <div class="flex flex-row gap-2 items-center">
+                        {stream}
+                      </div>
+                    </Select.Item>
+                  {/each}
+                </Select.Content>
+              </Select.Root>
+            </div>
           </div>
         </div>
       </div>

src/pages/Loading.svelte

@@ -7,6 +7,8 @@
     currentSkin,
     currentView,
     firstStartup,
+    launcherStream,
+    launcherStreams,
     launcherVersion,
     newVersion,
     osuBuild,
@@ -30,6 +32,7 @@
   import { currentUserInfo } from '@/data';
   import {
     getBeatmapSetsCount,
+    getEZPPLauncherStreams,
     getReleaseStream,
     getSkin,
     getSkinsCount,
@@ -148,6 +151,14 @@
       newVersion.set(launcherUpdate);
     }
 
+    const ezpplauncherStreams = await getEZPPLauncherStreams();
+    if (ezpplauncherStreams) launcherStreams.set(ezpplauncherStreams);
+
+    const selectedLauncherStream = $userSettings.value('patcherStream').get('stable');
+    if ($launcherStreams.includes(selectedLauncherStream)) {
+      launcherStream.set(selectedLauncherStream);
+    }
+
     animate(ezppLogo, {
       opacity: [1, 0],
       scale: [1, 1.05],

src/routes/+layout.svelte

@@ -1,8 +1,18 @@
 <script lang="ts">
+  import Logo from '$assets/logo.png';
   import '../app.css';
 
   import Titlebar from '@/components/ui/titlebar/titlebar.svelte';
-  import { currentLoadingInfo, firstStartup, launcherVersion, setupValues } from '@/global';
+  import * as AlertDialog from '@/components/ui/alert-dialog';
+  import {
+    currentLoadingInfo,
+    discordPresence,
+    firstStartup,
+    launcherVersion,
+    platform,
+    presenceLoading,
+    setupValues,
+  } from '@/global';
   import { onMount } from 'svelte';
   import OsuCursor from '@/components/ui/osu-cursor/OsuCursor.svelte';
   import {
@@ -16,13 +26,17 @@
   import { Buffer } from 'buffer';
   import { Toaster } from '@/components/ui/sonner';
   import { userAuth } from '@/userAuthentication';
-  import { getLauncherVersion } from '@/osuUtil';
+  import { exit, getLauncherVersion, getPlatform } from '@/osuUtil';
+  import Button from '@/components/ui/button/button.svelte';
+  import * as presence from '@/presence';
 
   import '@fontsource/sora';
   import '@fontsource/space-mono';
 
   let { children } = $props();
 
+  let unsupported_platform = $state<boolean>(false);
+
   function disableReload() {
     if (window.location.hostname !== 'tauri.localhost') {
       return;
@@ -77,6 +91,8 @@
     disableReload();
     setupValues();
     launcherVersion.set(await getLauncherVersion());
+    platform.set(await getPlatform());
+    if ($platform !== "windows" && $platform !== "linux") unsupported_platform = true;
     const isFirstStartup = await $userSettings.init();
     $userAuth.init();
 
@@ -86,17 +102,40 @@
     const config_cursor_smoothening = $userSettings.value('cursor_smoothening');
     const config_reduce_animations = $userSettings.value('reduce_animations');
     const config_osu_installation_path = $userSettings.value('osu_installation_path');
+    const config_discord_presence = $userSettings.value('discord_presence');
 
     patch.set(config_patching.get(true));
     customCursor.set(config_custom_cursor.get(true));
     cursorSmoothening.set(config_cursor_smoothening.get(true));
     reduceAnimations.set(config_reduce_animations.get(false));
     osuInstallationPath.set(config_osu_installation_path.get(''));
+    discordPresence.set(config_discord_presence.get(true));
 
     patch.subscribe((val) => config_patching.set(val));
     customCursor.subscribe((val) => config_custom_cursor.set(val));
     cursorSmoothening.subscribe((val) => config_cursor_smoothening.set(val));
     reduceAnimations.subscribe((val) => config_reduce_animations.set(val));
+    discordPresence.subscribe(async (val) => {
+      config_discord_presence.set(val);
+      try {
+        presenceLoading.set(true);
+        if (val) {
+          await presence.connect();
+        } else {
+          await presence.disconnect();
+        }
+        presenceLoading.set(false);
+      } catch {}
+    });
+
+    try {
+      if ($discordPresence) {
+        currentLoadingInfo.set('Connecting to Discord RPC...');
+        presenceLoading.set(true);
+        await presence.connect();
+        presenceLoading.set(false);
+      }
+    } catch {}
 
     firstStartup.set(isFirstStartup);
   });
@@ -110,6 +149,29 @@
 
 <Titlebar />
 
+<AlertDialog.Root open={unsupported_platform}>
+  <AlertDialog.Content class="bg-theme-950 border-theme-800 p-0">
+    <div
+      class="flex flex-col items-center justify-center border-b border-theme-800 bg-black/40 rounded-t-lg p-3"
+    >
+      <img class="h-20 w-20" src={Logo} alt="logo" />
+      <span class="font-semibold text-xl">Unsupported Platform!</span>
+    </div>
+    <div
+      class="flex flex-col items-center text-sm text-center bg-theme-900 border border-theme-800 rounded-lg mx-3 p-3"
+    >
+      This Platform is not supported by EZPPLauncher.
+    </div>
+    <div class="flex items-center justify-center mb-3">
+      <Button
+        onclick={async () => {
+          await exit();
+        }}>Close</Button
+      >
+    </div>
+  </AlertDialog.Content>
+</AlertDialog.Root>
+
 <main>
   {@render children()}
 </main>

tests/imageCheck.test.ts

@@ -0,0 +1,24 @@
+import { expect, test } from 'bun:test';
+
+const urlIsValidImage = async (url: string) => {
+  try {
+    const request = await fetch(url);
+    if (!request.ok) return false;
+    const contentType = request.headers.get('content-type');
+    return contentType?.startsWith('image/');
+  } catch {
+    return false;
+  }
+};
+
+test('image check', async () => {
+  const imageUrl = 'https://assets.ppy.sh/beatmaps/1/covers/list@2x.jpg';
+  const imageCheckResult = await urlIsValidImage(imageUrl);
+  expect(imageCheckResult).toBe(true);
+});
+
+test('image check fail', async () => {
+  const imageUrl = 'https://assets.ppy.sh/beatmaps/0/covers/list@2x.jpg';
+  const imageCheckResult = await urlIsValidImage(imageUrl);
+  expect(imageCheckResult).toBe(false);
+});