diff --git a/.github/workflows/astralrinth-build.yml b/.github/workflows/astralrinth-build.yml
index c0ca17290..c5a263d74 100644
--- a/.github/workflows/astralrinth-build.yml
+++ b/.github/workflows/astralrinth-build.yml
@@ -42,6 +42,35 @@ jobs:
         with:
           fetch-depth: 2
 
+      - name: 🔍 Validate Git config does not introduce CRLF
+        shell: bash
+        run: |
+          echo "🔍 Checking Git config for CRLF settings..."
+
+          autocrlf=$(git config --get core.autocrlf || echo "unset")
+          eol_setting=$(git config --get core.eol || echo "unset")
+
+          echo "core.autocrlf = $autocrlf"
+          echo "core.eol = $eol_setting"
+
+          if [ "$autocrlf" = "true" ]; then
+            echo "⚠️ WARNING: core.autocrlf is set to 'true'. Consider setting it to 'input' or 'false'."
+          fi
+
+          if [ "$eol_setting" = "crlf" ]; then
+            echo "⚠️ WARNING: core.eol is set to 'crlf'. Consider unsetting it or setting to 'lf'."
+          fi
+
+      - name: 🔍 Check migration files line endings (LF only)
+        shell: bash
+        run: |
+          echo "🔍 Scanning migration SQL files for CR characters (\\r)..."
+          if grep -Iq $'\r' packages/app-lib/migrations/*.sql; then
+            echo "❌ ERROR: Some migration files contain CR (\\r) characters — expected only LF line endings."
+            exit 1
+          fi
+          echo "✅ All migration files use LF line endings"
+
       - name: 🧰 Setup Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
diff --git a/apps/app-frontend/src/App.vue b/apps/app-frontend/src/App.vue
index a8a76db24..81107c4fe 100644
--- a/apps/app-frontend/src/App.vue
+++ b/apps/app-frontend/src/App.vue
@@ -161,11 +161,11 @@ async function setupApp() {
 
   initAnalytics()
   if (!telemetry) {
-    console.info("[AR] Telemetry disabled by default (Hard patched).")
+    console.info("[AR] • Telemetry disabled by default (Hard patched).")
     optOutAnalytics()
   }
   if (!personalized_ads) {
-    console.info("[AR] Personalized ads disabled by default (Hard patched).")
+    console.info("[AR] • Personalized ads disabled by default (Hard patched).")
   }
 
   if (dev) debugAnalytics()
diff --git a/apps/app-frontend/src/components/ui/ErrorModal.vue b/apps/app-frontend/src/components/ui/ErrorModal.vue
index bae919081..3df0cc114 100644
--- a/apps/app-frontend/src/components/ui/ErrorModal.vue
+++ b/apps/app-frontend/src/components/ui/ErrorModal.vue
@@ -18,11 +18,15 @@ import { cancel_directory_change } from '@/helpers/settings.ts'
 import { install } from '@/helpers/profile.js'
 import { trackEvent } from '@/helpers/analytics'
 import ModalWrapper from '@/components/ui/modal/ModalWrapper.vue'
+import { applyMigrationFix } from '@/helpers/utils.js'
 
 const errorModal = ref()
 const error = ref()
 const closable = ref(true)
 const errorCollapsed = ref(false)
+const language = ref('en')
+const migrationFixSuccess = ref(null) // null | true | false
+const migrationFixCallbackModel = ref()
 
 const title = ref('An error occurred')
 const errorType = ref('unknown')
@@ -148,6 +152,25 @@ async function copyToClipboard(text) {
     copied.value = false
   }, 3000)
 }
+
+function toggleLanguage() {
+  language.value = language.value === 'en' ? 'ru' : 'en'
+}
+
+async function onApplyMigrationFix(eol) {
+  console.log(`[AR] • Attempting to apply migration ${eol.toUpperCase()} fix`)
+  try {
+    const result = await applyMigrationFix(eol)
+    migrationFixSuccess.value = result === true
+    console.log(`[AR] • Successfully applied migration ${eol.toUpperCase()} fix`, result)
+  } catch (err) {
+    console.error(`[AR] • Failed to apply migration fix:`, err)
+    migrationFixSuccess.value = false
+  } finally {
+    migrationFixCallbackModel.value?.show?.()
+  }
+}
+
 </script>
 
 <template>
@@ -298,6 +321,11 @@ async function copyToClipboard(text) {
             <template v-if="copied"> <CheckIcon class="text-green" /> Copied! </template>
             <template v-else> <CopyIcon /> Copy debug info </template>
           </button>
+        <ButtonStyled color="brand">
+                <a href="https://me.astralium.su/get/ar/help" target="_blank" rel="noopener noreferrer">
+                  <button>Get AstralRinth support</button>
+                </a>
+        </ButtonStyled>
         </ButtonStyled>
       </div>
       <template v-if="hasDebugInfo">
@@ -316,9 +344,116 @@ async function copyToClipboard(text) {
             <pre class="m-0 px-4 py-3 bg-bg rounded-none">{{ debugInfo }}</pre>
           </Collapsible>
         </div>
+    <div class="notice">
+      <div class="flex justify-between items-center">
+        <h3 v-if="language === 'en'" class="notice__title">⚠️ Important Notice ⚠️</h3>
+        <h3 v-if="language === 'ru'" class="notice__title">⚠️ Важное уведомление ⚠️</h3>
+        <ButtonStyled>
+          <button @click="toggleLanguage">
+            {{ language === 'en' ? '📖 Русский' : '📖 English' }}
+          </button>
+        </ButtonStyled>
+      </div>
+      <p v-if="language === 'en'" class="notice__text">
+        We're experiencing an issue with our database migration system due to differences in how different operating systems handle line endings. This might cause problems with our app's functionality.
+      </p>
+      <p v-if="language === 'en'" class="notice__text">
+        <strong>What's happening?</strong> When we build our app, we use a system that checks the integrity of our database migrations. However, this system can get confused when it encounters different line endings (like CRLF vs LF) used by different operating systems. This can lead to errors and make our app unusable.
+      </p>
+      <p v-if="language === 'en'" class="notice__text">
+        <strong>Why is this happening?</strong> This issue is caused by a combination of factors, including different operating systems handling line endings differently, Git's line ending conversion settings, and our app's build process.
+      </p>
+      <p v-if="language === 'en'" class="notice__text">
+        <strong>What are we doing about it?</strong> We're working to resolve this issue and ensure that our app works smoothly for all users. In the meantime, we apologize for any inconvenience this might cause and appreciate your patience and understanding.
+      </p>
+      <p v-if="language === 'ru'" class="notice__text">
+        Мы сталкиваемся с проблемой в нашей системе миграции базы данных из-за различий в том, как разные операционные системы обрабатывают окончания строк. Это может вызвать проблемы с функциональностью нашего приложения.
+      </p>
+      <p v-if="language === 'ru'" class="notice__text">
+        <strong>Что происходит?</strong> Когда мы строим наше приложение, мы используем систему, которая проверяет целостность наших миграций базы данных. Однако эта система может сбиваться, когда сталкивается с различными окончаниями строк (например, CRLF против LF), используемыми разными операционными системами. Это может привести к ошибкам и сделать наше приложение неработоспособным.
+      </p>
+      <p v-if="language === 'ru'" class="notice__text">
+        <strong>Почему это происходит?</strong> Эта проблема вызвана сочетанием факторов, включая различную обработку окончаний строк разными операционными системами, настройки преобразования окончаний строк в Git и процесс сборки нашего приложения.
+      </p>
+      <p v-if="language === 'ru'" class="notice__text">
+        <strong>Что мы с этим делаем?</strong> Мы работаем над решением этой проблемы и обеспечением бесперебойной работы нашего приложения для всех пользователей. В это время мы извиняемся за возможные неудобства и благодарим вас за терпение и понимание.
+      </p>
+    </div>
+    <h2 class="text-lg font-bold text-contrast">
+      <template v-if="language === 'en'">Possible fix in real time:</template>
+      <template v-if="language === 'ru'">Возможное исправление в реальном времени:</template>
+    </h2>
+        <div class="flex justify-between">
+          <ul class="flex flex-col gap-3">
+            <li>
+              <ButtonStyled color="purple">
+                <button
+                  :title="language === 'en' 
+                    ? 'Convert all line endings in migration files to LF (Unix-style: \\n)' 
+                    : 'Преобразовать все окончания строк в файлах миграций в LF (Unix-стиль: \\n)'"
+                  aria-label="LF"
+                  @click="onApplyMigrationFix('lf')"
+                >
+                  {{ language === 'en' ? 'Apply LF Migration Fix' : 'Применить исправление миграции LF' }}
+                </button>
+              </ButtonStyled>
+            </li>
+            <li>
+              <ButtonStyled color="purple">
+                <button
+                  :title="language === 'en' 
+                    ? 'Convert all line endings in migration files to CRLF (Windows-style: \\r\\n)' 
+                    : 'Преобразовать все окончания строк в файлах миграций в CRLF (Windows-стиль: \\r\\n)'"
+                  aria-label="CRLF"
+                  @click="onApplyMigrationFix('crlf')"
+                >
+                  {{ language === 'en' ? 'Apply CRLF Migration Fix' : 'Применить исправление миграции CRLF' }}
+                </button>
+              </ButtonStyled>
+            </li>
+          </ul>
+        </div>
       </template>
     </div>
   </ModalWrapper>
+  <ModalWrapper
+    ref="migrationFixCallbackModel"
+    :header="language === 'en'
+      ? '💡 Migration fix report'
+      : '💡 Отчет об исправлении миграции'"
+    :closable="closable">
+    <div class="modal-body">
+      <h2 class="text-lg font-bold text-contrast space-y-2">
+        <template v-if="migrationFixSuccess === true">
+          <p class="flex items-center gap-2 text-green-600">
+            ✅
+            {{ language === 'en' 
+              ? 'The migration fix has been applied successfully. Please restart the launcher and try to log in to the game :)' 
+              : 'Исправление миграции успешно применено. Пожалуйста, перезапустите лаунчер и попробуйте снова авторизоваться в игре :)' }}
+          </p>
+          <p class="mt-2 text-sm text-gray-600">
+            {{ language === 'en' 
+              ? 'If the problem persists, please try the other fix.' 
+              : 'Если проблема сохраняется, пожалуйста, попробуйте другой способ.' }}
+          </p>
+        </template>
+      
+        <template v-else-if="migrationFixSuccess === false">
+          <p class="flex items-center gap-2 text-red-600">
+            ❌
+            {{ language === 'en' 
+              ? 'The migration fix failed or had no effect.' 
+              : 'Исправление миграции не было успешно применено или не имело эффекта.' }}
+          </p>
+          <p class="mt-2 text-sm text-gray-600">
+            {{ language === 'en' 
+              ? 'If the problem persists, please try the other fix.' 
+              : 'Если проблема сохраняется, пожалуйста, попробуйте другой способ.' }}
+          </p>
+        </template>
+      </h2>
+    </div>
+  </ModalWrapper>
 </template>
 
 <style>
diff --git a/apps/app-frontend/src/helpers/utils.js b/apps/app-frontend/src/helpers/utils.js
index a6353504d..ac950e175 100644
--- a/apps/app-frontend/src/helpers/utils.js
+++ b/apps/app-frontend/src/helpers/utils.js
@@ -10,11 +10,17 @@ export async function getOS() {
   return await invoke('plugin:utils|get_os')
 }
 
+// [AR] Feature
 export async function getArtifact(downloadurl, filename, ostype, autoupdatesupported) {
   console.log('Downloading build', downloadurl, filename, ostype, autoupdatesupported)
   return await invoke('plugin:utils|get_artifact', { downloadurl, filename, ostype, autoupdatesupported })
 }
 
+// [AR] Patch fix
+export async function applyMigrationFix(eol) {
+  return await invoke('plugin:utils|apply_migration_fix', { eol })
+}
+
 export async function openPath(path) {
   return await invoke('plugin:utils|open_path', { path })
 }
diff --git a/apps/app/build.rs b/apps/app/build.rs
index 59f78131a..4942497aa 100644
--- a/apps/app/build.rs
+++ b/apps/app/build.rs
@@ -218,6 +218,7 @@ fn main() {
                 "utils",
                 InlinedPlugin::new()
                     .commands(&[
+                        "apply_migration_fix",
                         "get_artifact",
                         "get_os",
                         "should_disable_mouseover",
diff --git a/apps/app/src/api/utils.rs b/apps/app/src/api/utils.rs
index dfe645096..452079157 100644
--- a/apps/app/src/api/utils.rs
+++ b/apps/app/src/api/utils.rs
@@ -11,10 +11,12 @@ use dashmap::DashMap;
 use std::path::{Path, PathBuf};
 use theseus::prelude::canonicalize;
 use url::Url;
+use theseus::util::utils;
 
 pub fn init<R: tauri::Runtime>() -> tauri::plugin::TauriPlugin<R> {
     tauri::plugin::Builder::new("utils")
         .invoke_handler(tauri::generate_handler![
+            apply_migration_fix,
             get_artifact,
             get_os,
             should_disable_mouseover,
@@ -27,9 +29,17 @@ pub fn init<R: tauri::Runtime>() -> tauri::plugin::TauriPlugin<R> {
         .build()
 }
 
+/// [AR] Patch fix
+#[tauri::command]
+pub async fn apply_migration_fix(eol: &str) -> Result<bool> {
+    let result = utils::apply_migration_fix(eol).await?;
+    Ok(result)
+}
+
+/// [AR] Feature
 #[tauri::command]
 pub async fn get_artifact(downloadurl: &str, filename: &str, ostype: &str, autoupdatesupported: bool) -> Result<()> {
-    theseus::download::init_download(downloadurl, filename, ostype, autoupdatesupported).await;
+    let _ = utils::init_download(downloadurl, filename, ostype, autoupdatesupported).await;
     Ok(())
 }
 
diff --git a/apps/app/tauri.conf.json b/apps/app/tauri.conf.json
index 26021c70a..4ebb2aa5f 100644
--- a/apps/app/tauri.conf.json
+++ b/apps/app/tauri.conf.json
@@ -41,7 +41,7 @@
     ]
   },
   "productName": "AstralRinth App",
-  "version": "0.10.302",
+  "version": "0.10.303",
   "mainBinaryName": "AstralRinth App",
   "identifier": "AstralRinthApp",
   "plugins": {
diff --git a/packages/app-lib/src/api/download.rs b/packages/app-lib/src/api/download.rs
deleted file mode 100644
index bac7cdc5d..000000000
--- a/packages/app-lib/src/api/download.rs
+++ /dev/null
@@ -1,55 +0,0 @@
-use std::process::exit;
-
-use reqwest;
-use tokio::fs::File as AsyncFile;
-use tokio::io::AsyncWriteExt;
-use tokio::process::Command;
-
-async fn download_file(download_url: &str, local_filename: &str, os_type: &str, auto_update_supported: bool) -> Result<(), Box<dyn std::error::Error>> {
-    let download_dir = dirs::download_dir().ok_or("[download_file] • Failed to determine download directory")?;
-    let full_path = download_dir.join(local_filename);
-    let response = reqwest::get(download_url).await?;
-    let bytes = response.bytes().await?;
-    let mut dest_file = AsyncFile::create(&full_path).await?;
-    dest_file.write_all(&bytes).await?;
-    println!("[download_file] • File downloaded to: {:?}", full_path);
-    if auto_update_supported {
-        let status;
-        if os_type.to_lowercase() == "Windows".to_lowercase() {
-            status = Command::new("explorer")
-                .arg(download_dir.display().to_string())
-                .status()
-                .await
-                .expect("[download_file] • Failed to open downloads folder");
-        } else if os_type.to_lowercase() == "MacOS".to_lowercase() {
-            status = Command::new("open")
-                .arg(full_path.to_str().unwrap_or_default())
-                .status()
-                .await
-                .expect("[download_file] • Failed to execute command");
-        } else {
-            status = Command::new(".")
-                .arg(full_path.to_str().unwrap_or_default())
-                .status()
-                .await
-                .expect("[download_file] • Failed to execute command");
-        }
-        if status.success() {
-            println!("[download_file] • File opened successfully!");
-        } else {
-            eprintln!("[download_file] • Failed to open the file. Exit code: {:?}", status.code());
-        }
-    }
-    Ok(())
-}
-
-pub async fn init_download(download_url: &str, local_filename: &str, os_type: &str, auto_update_supported: bool) {
-    println!("[init_download] • Initialize downloading from • {:?}", download_url);
-    println!("[init_download] • Save local file name • {:?}", local_filename);
-    if let Err(e) = download_file(download_url, local_filename, os_type, auto_update_supported).await {
-        eprintln!("[init_download] • An error occurred! Failed to download the file: {}", e);
-    } else {
-        println!("[init_download] • Code finishes without errors.");
-        exit(0)
-    }
-}
\ No newline at end of file
diff --git a/packages/app-lib/src/api/mod.rs b/packages/app-lib/src/api/mod.rs
index 5c37b0034..2623bba1e 100644
--- a/packages/app-lib/src/api/mod.rs
+++ b/packages/app-lib/src/api/mod.rs
@@ -12,8 +12,8 @@ pub mod pack;
 pub mod process;
 pub mod profile;
 pub mod settings;
+pub mod update; // [AR] Feature
 pub mod tags;
-pub mod download; // AstralRinth
 pub mod worlds;
 
 pub mod data {
diff --git a/packages/app-lib/src/api/update.rs b/packages/app-lib/src/api/update.rs
new file mode 100644
index 000000000..b1943dece
--- /dev/null
+++ b/packages/app-lib/src/api/update.rs
@@ -0,0 +1,42 @@
+use reqwest;
+use tokio::fs::File as AsyncFile;
+use tokio::io::AsyncWriteExt;
+use tokio::process::Command;
+
+pub(crate) async fn download_file(download_url: &str, local_filename: &str, os_type: &str, auto_update_supported: bool) -> Result<(), Box<dyn std::error::Error>> {
+    let download_dir = dirs::download_dir().ok_or("[AR] • Failed to determine download directory")?;
+    let full_path = download_dir.join(local_filename);
+    let response = reqwest::get(download_url).await?;
+    let bytes = response.bytes().await?;
+    let mut dest_file = AsyncFile::create(&full_path).await?;
+    dest_file.write_all(&bytes).await?;
+    println!("[AR] • File downloaded to: {:?}", full_path);
+    if auto_update_supported {
+        let status;
+        if os_type.to_lowercase() == "Windows".to_lowercase() {
+            status = Command::new("explorer")
+                .arg(download_dir.display().to_string())
+                .status()
+                .await
+                .expect("[AR] • Failed to open downloads folder");
+        } else if os_type.to_lowercase() == "MacOS".to_lowercase() {
+            status = Command::new("open")
+                .arg(full_path.to_str().unwrap_or_default())
+                .status()
+                .await
+                .expect("[AR] • Failed to execute command");
+        } else {
+            status = Command::new(".")
+                .arg(full_path.to_str().unwrap_or_default())
+                .status()
+                .await
+                .expect("[AR] • Failed to execute command");
+        }
+        if status.success() {
+            println!("[AR] • File opened successfully!");
+        } else {
+            eprintln!("[AR] • Failed to open the file. Exit code: {:?}", status.code());
+        }
+    }
+    Ok(())
+}
\ No newline at end of file
diff --git a/packages/app-lib/src/lib.rs b/packages/app-lib/src/lib.rs
index 55f4459ac..376f77e66 100644
--- a/packages/app-lib/src/lib.rs
+++ b/packages/app-lib/src/lib.rs
@@ -8,7 +8,7 @@ and launching Modrinth mod packs
 #![deny(unused_must_use)]
 
 #[macro_use]
-mod util;
+pub mod util; // [AR] Refactor
 
 mod api;
 mod config;
diff --git a/packages/app-lib/src/state/db.rs b/packages/app-lib/src/state/db.rs
index 331d9cb47..44a1c76e6 100644
--- a/packages/app-lib/src/state/db.rs
+++ b/packages/app-lib/src/state/db.rs
@@ -1,18 +1,31 @@
 use crate::state::DirectoryInfo;
+use crate::ErrorKind;
 use sqlx::sqlite::{
     SqliteConnectOptions, SqliteJournalMode, SqlitePoolOptions,
 };
 use sqlx::{Pool, Sqlite};
-use std::env;
-use tokio::time::Instant;
+use std::collections::HashMap;
 use std::str::FromStr;
 use std::time::Duration;
+use tokio::time::Instant;
 
 pub(crate) async fn connect() -> crate::Result<Pool<Sqlite>> {
+    let pool = connect_without_migrate().await?;
+
+    sqlx::migrate!().run(&pool).await?;
+
+    if let Err(err) = stale_data_cleanup(&pool).await {
+        tracing::warn!(
+            "Failed to clean up stale data from state database: {err}"
+        );
+    }
+
+    Ok(pool)
+}
+
+async fn connect_without_migrate() -> crate::Result<Pool<Sqlite>> {
     let settings_dir = DirectoryInfo::get_initial_settings_dir().ok_or(
-        crate::ErrorKind::FSError(
-            "Could not find valid config dir".to_string(),
-        ),
+        ErrorKind::FSError("Could not find valid config dir".to_string()),
     )?;
 
     if !settings_dir.exists() {
@@ -20,7 +33,6 @@ pub(crate) async fn connect() -> crate::Result<Pool<Sqlite>> {
     }
 
     let db_path = settings_dir.join("app.db");
-    let db_exists = db_path.exists();
 
     let uri = format!("sqlite:{}", db_path.display());
     let conn_options = SqliteConnectOptions::from_str(&uri)?
@@ -34,22 +46,6 @@ pub(crate) async fn connect() -> crate::Result<Pool<Sqlite>> {
         .connect_with(conn_options)
         .await?;
 
-    if db_exists {
-        fix_modrinth_issued_migrations(&pool).await?;
-    }
-
-    sqlx::migrate!().run(&pool).await?;
-
-    if !db_exists {
-        fix_modrinth_issued_migrations(&pool).await?;
-    }
-
-    if let Err(err) = stale_data_cleanup(&pool).await {
-        tracing::warn!(
-            "Failed to clean up stale data from state database: {err}"
-        );
-    }
-
     Ok(pool)
 }
 
@@ -75,72 +71,103 @@ async fn stale_data_cleanup(pool: &Pool<Sqlite>) -> crate::Result<()> {
     Ok(())
 }
 /*
-// Patch by AstralRinth - 08.07.2025
-Problem files:
+// Patched by AstralRinth
+Problem files, view detailed information in .gitattributes:
 /packages/app-lib/migrations/20240711194701_init.sql !eol
+CRLF -> 4c47e326f16f2b1efca548076ce638d4c90dd610172fe48c47d6de9bc46ef1c5abeadfdea05041ddd72c3819fa10c040
+LF -> e973512979feac07e415405291eefafc1ef0bd89454958ad66f5452c381db8679c20ffadab55194ecf6ba8ec4ca2db21
 /packages/app-lib/migrations/20240813205023_drop-active-unique.sql !eol
+CRLF -> 10f4a494df6fd791a093cc61401ecf3f9750fa6b97aa304ab06e29671e446586240910ffbf806f6ddc484a756770dde9
+LF -> 5b53534a7ffd74eebede234222be47e1d37bd0cc5fee4475212491b0c0379c16e3079e08eee0af959b1fa20835eeb206
 /packages/app-lib/migrations/20240930001852_disable-personalized-ads.sql !eol
+CRLF -> c8028ec3a2e61d15586e2f69ad6c6be5ac03b95918c2014cefb183ed6c254a52aad6f9ce98cda13ad545da3398574702
+LF -> c0de804f171b5530010edae087a6e75645c0e90177e28365f935c9fdd9a5c68e24850b8c1498e386a379d525d520bc57
 /packages/app-lib/migrations/20241222013857_feature-flags.sql !eol
+CRLF -> f8c55065e2563fa4738976eb13a052ae4c28da8d33143185550f6e1cee394a3243b1dca090b3e8bc50a93a8286a78c09
+LF -> c17542cb989a0466153e695bfa4717f8970feee185ca186a2caa1f2f6c5d4adb990ab97c26cacfbbe09c39ac81551704
 */
-async fn fix_modrinth_issued_migrations(
-    pool: &Pool<Sqlite>,
-) -> crate::Result<()> {
-    let arch = env::consts::ARCH;
-    let os = env::consts::OS;
+pub(crate) async fn fix_version_hash(
+    eol: &str,
+) -> crate::Result<bool> {
+    let started = Instant::now();
 
-    tracing::info!("Running on OS: {}, ARCH: {}", os, arch);
+    // Create connection to the database without migrations
+    let pool = connect_without_migrate().await?;
+    tracing::info!("⚙️  Patching Modrinth corrupted migration checksums using EOL standard: {eol}");
 
-    if os == "windows" && arch == "x86_64" {
-        tracing::warn!("🛑 Skipping migration checksum fix on Windows x86_64 (runtime-detected)");
-        return Ok(());
+    // validate EOL input
+    if eol != "lf" && eol != "crlf" {
+        return Ok(false);
     }
 
-    let started = Instant::now();
-    tracing::info!("Fixing modrinth issued migrations");
-    sqlx::query(
+    // [eol][version] -> checksum
+    let checksums: HashMap<(&str, &str), &str> = HashMap::from([
+        (
+            ("lf", "20240711194701"),
+            "e973512979feac07e415405291eefafc1ef0bd89454958ad66f5452c381db8679c20ffadab55194ecf6ba8ec4ca2db21",
+        ),
+        (
+            ("crlf", "20240711194701"),
+            "4c47e326f16f2b1efca548076ce638d4c90dd610172fe48c47d6de9bc46ef1c5abeadfdea05041ddd72c3819fa10c040",
+        ),
+        (
+            ("lf", "20240813205023"),
+            "5b53534a7ffd74eebede234222be47e1d37bd0cc5fee4475212491b0c0379c16e3079e08eee0af959b1fa20835eeb206",
+        ),
+        (
+            ("crlf", "20240813205023"),
+            "10f4a494df6fd791a093cc61401ecf3f9750fa6b97aa304ab06e29671e446586240910ffbf806f6ddc484a756770dde9",
+        ),
+        (
+            ("lf", "20240930001852"),
+            "c0de804f171b5530010edae087a6e75645c0e90177e28365f935c9fdd9a5c68e24850b8c1498e386a379d525d520bc57",
+        ),
+        (
+            ("crlf", "20240930001852"),
+            "c8028ec3a2e61d15586e2f69ad6c6be5ac03b95918c2014cefb183ed6c254a52aad6f9ce98cda13ad545da3398574702",
+        ),
+        (
+            ("lf", "20241222013857"),
+            "c17542cb989a0466153e695bfa4717f8970feee185ca186a2caa1f2f6c5d4adb990ab97c26cacfbbe09c39ac81551704",
+        ),
+        (
+            ("crlf", "20241222013857"),
+            "f8c55065e2563fa4738976eb13a052ae4c28da8d33143185550f6e1cee394a3243b1dca090b3e8bc50a93a8286a78c09",
+        ),
+    ]);
+
+    let mut changed = false;
+
+    for ((eol_key, version), checksum) in checksums.iter() {
+        if *eol_key != eol {
+            continue;
+        }
+
+        tracing::info!(
+            "⏳ Patching checksum for migration {version} ({})",
+            eol.to_uppercase()
+        );
+
+        let result = sqlx::query(&format!(
             r#"
             UPDATE "_sqlx_migrations"
-            SET checksum = X'e973512979feac07e415405291eefafc1ef0bd89454958ad66f5452c381db8679c20ffadab55194ecf6ba8ec4ca2db21'
-            WHERE version = '20240711194701';
-            "#,
-        )
-        .execute(pool)
+            SET checksum = X'{checksum}'
+            WHERE version = '{version}';
+            "#
+        ))
+        .execute(&pool)
         .await?;
-    tracing::info!("⚙️ Fixed checksum for first migration");
-    sqlx::query(
-            r#"
-            UPDATE "_sqlx_migrations"
-            SET checksum = X'5b53534a7ffd74eebede234222be47e1d37bd0cc5fee4475212491b0c0379c16e3079e08eee0af959b1fa20835eeb206'
-            WHERE version = '20240813205023';
-            "#,
-        )
-        .execute(pool)
-        .await?;
-    tracing::info!("⚙️ Fixed checksum for second migration");
-    sqlx::query(
-            r#"
-            UPDATE "_sqlx_migrations"
-            SET checksum = X'c0de804f171b5530010edae087a6e75645c0e90177e28365f935c9fdd9a5c68e24850b8c1498e386a379d525d520bc57'
-            WHERE version = '20240930001852';
-            "#,
-        )
-        .execute(pool)
-        .await?;
-    tracing::info!("⚙️ Fixed checksum for third migration");
-    sqlx::query(
-            r#"
-            UPDATE "_sqlx_migrations"
-            SET checksum = X'c17542cb989a0466153e695bfa4717f8970feee185ca186a2caa1f2f6c5d4adb990ab97c26cacfbbe09c39ac81551704'
-            WHERE version = '20241222013857';
-            "#,
-        )
-        .execute(pool)
-        .await?;
-    tracing::info!("⚙️ Fixed checksum for fourth migration");
-    let elapsed = started.elapsed();
+
+        if result.rows_affected() > 0 {
+            changed = true;
+        }
+    }
+
     tracing::info!(
-        "✅ Fixed all known Modrinth checksums for migrations in {:.2?}",
-        elapsed
+        "✅ Checksum patching completed in {:.2?} (changes: {})",
+        started.elapsed(),
+        changed
     );
-    Ok(())
+
+    Ok(changed)
 }
diff --git a/packages/app-lib/src/util/utils.rs b/packages/app-lib/src/util/utils.rs
index 0f8fd7afa..678ddb696 100644
--- a/packages/app-lib/src/util/utils.rs
+++ b/packages/app-lib/src/util/utils.rs
@@ -1,16 +1,20 @@
+///
+/// [AR] Feature
+///
+use crate::Result;
+use crate::api::update;
+use crate::state::db;
 use serde::{Deserialize, Serialize};
+use std::process;
 use tokio::io;
 
-/*
-AstralRinth Utils
-*/
 const PACKAGE_JSON_CONTENT: &str =
     // include_str!("../../../../apps/app-frontend/package.json");
     include_str!("../../../../apps/app/tauri.conf.json");
 
 #[derive(Serialize, Deserialize)]
 pub struct Launcher {
-    pub version: String
+    pub version: String,
 }
 
 pub fn read_package_json() -> io::Result<Launcher> {
@@ -19,3 +23,41 @@ pub fn read_package_json() -> io::Result<Launcher> {
 
     Ok(launcher)
 }
+
+pub async fn apply_migration_fix(eol: &str) -> Result<bool> {
+    tracing::info!("[AR] • Attempting to apply migration fix");
+    let patched = db::fix_version_hash(eol).await?;
+    if patched {
+        tracing::info!("[AR] • Successfully applied migration fix");
+    } else {
+        tracing::error!("[AR] • Failed to apply migration fix");
+    }
+    Ok(patched)
+}
+
+pub async fn init_download(
+    download_url: &str,
+    local_filename: &str,
+    os_type: &str,
+    auto_update_supported: bool,
+) -> Result<()> {
+    println!("[AR] • Initialize downloading from • {:?}", download_url);
+    println!("[AR] • Save local file name • {:?}", local_filename);
+    if let Err(e) = update::download_file(
+        download_url,
+        local_filename,
+        os_type,
+        auto_update_supported,
+    )
+    .await
+    {
+        eprintln!(
+            "[AR] • An error occurred! Failed to download the file: {}",
+            e
+        );
+    } else {
+        println!("[AR] • Code finishes without errors.");
+        process::exit(0)
+    }
+    Ok(())
+}