diff --git a/app/Http/Controllers/Admin/ReleaseController.php b/app/Http/Controllers/Admin/ReleaseController.php
index a68ff65..2d2b5e2 100644
--- a/app/Http/Controllers/Admin/ReleaseController.php
+++ b/app/Http/Controllers/Admin/ReleaseController.php
@@ -68,7 +68,17 @@ final class ReleaseController extends Controller
             'version' => ['required','string','max:40'], 'build_number' => ['required','integer','min:1'],
             'channel' => ['required', Rule::in(['stable','beta'])], 'minimum_macos' => ['nullable','string','max:30'],
             'release_notes' => ['nullable','string','max:20000'], 'sparkle_signature' => ['nullable','string','max:2000'],
-            'package' => [$release->exists ? 'nullable' : 'required','file','max:1048576','mimes:dmg,zip'],
+            'package' => [
+                $release->exists ? 'nullable' : 'required',
+                'file',
+                'max:1048576',
+                function (string $attribute, $value, \Closure $fail): void {
+                    $extension = strtolower($value->getClientOriginalExtension());
+                    if (! in_array($extension, ['dmg', 'zip'], true)) {
+                        $fail('The package must be a DMG or ZIP file.');
+                    }
+                },
+            ],
             'is_published' => ['nullable','boolean'], 'is_featured' => ['nullable','boolean'],
         ]);
         $data['is_published'] = $request->boolean('is_published');
diff --git a/app/Services/Licensing/LicenseTokenVerifier.php b/app/Services/Licensing/LicenseTokenVerifier.php
index fa497fc..a13ba47 100755
--- a/app/Services/Licensing/LicenseTokenVerifier.php
+++ b/app/Services/Licensing/LicenseTokenVerifier.php
@@ -14,10 +14,11 @@ final class LicenseTokenVerifier
         }
         $payload = $this->decode($parts[1]);
         $signature = $this->decode($parts[2]);
-        $public = base64_decode((string) config('sonardesk.public_key'), true);
-        if ($public === false || strlen($public) !== SODIUM_CRYPTO_SIGN_PUBLICKEYBYTES) {
-            throw new RuntimeException('Server licence public key is invalid.');
-        }
+        // Derive the verification key from the same private seed used by LicenseSigner.
+        // Keeping a separate SONARDESK_LICENSE_PUBLIC_KEY allowed the two keys to drift:
+        // activation would sign a perfectly valid token with the new private key, then
+        // /validate would reject that same token using a stale public key.
+        $public = $this->publicKeyFromPrivateSeed();
         if (! sodium_crypto_sign_verify_detached($signature, $payload, $public)) {
             throw new RuntimeException('Licence token signature is invalid.');
         }
@@ -26,6 +27,23 @@ final class LicenseTokenVerifier
         return is_array($decoded) ? $decoded : throw new RuntimeException('Licence token payload is invalid.');
     }
 
+    private function publicKeyFromPrivateSeed(): string
+    {
+        $path = config('sonardesk.private_key_path');
+        if (! $path || ! is_file($path)) {
+            throw new RuntimeException('SONARDESK_LICENSE_PRIVATE_KEY_PATH is not configured or does not exist.');
+        }
+
+        $seed = base64_decode(trim((string) file_get_contents($path)), true);
+        if ($seed === false || strlen($seed) !== SODIUM_CRYPTO_SIGN_SEEDBYTES) {
+            throw new RuntimeException('The SonarDesk private key must be a Base64-encoded 32-byte Ed25519 seed.');
+        }
+
+        $pair = sodium_crypto_sign_seed_keypair($seed);
+
+        return sodium_crypto_sign_publickey($pair);
+    }
+
     private function decode(string $value): string
     {
         $value = strtr($value, '-_', '+/');
diff --git a/deploy.php b/deploy.php
index 628690d..dd96cd1 100755
--- a/deploy.php
+++ b/deploy.php
@@ -18,8 +18,8 @@ add('shared_dirs', ['storage']);
 add('writable_dirs', ['storage', 'bootstrap/cache']);
 
 // Host Definitions
-host('production')
-    ->set('hostname', 'sonardsk.absdev.net')
+host('main')
+    ->set('hostname', 'sonardesk.absdev.net')
     ->set('remote_user', 'mag')
     ->set('branch', 'main')
     ->set('deploy_path', '/var/www/sonardesk/main');