diff --git a/README.md b/README.md
index 46a5968..748c5fd 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,8 @@ Define the following required environment variables:
 | `IMGFLOAT_PREVIEWS_PATH` | Filesystem path to store generated image previews | /var/imgfloat/previews |
 | `IMGFLOAT_DB_PATH` | Filesystem path to the SQLite database file | /var/imgfloat/imgfloat.db |
 | `IMGFLOAT_INITIAL_TWITCH_USERNAME_SYSADMIN` | Twitch username of the initial sysadmin user | example_broadcaster |
+| `IMGFLOAT_GITHUB_OWNER` | Github user or org which has the client repository | Kruhlmann |
+| `IMGFLOAT_GITHUB_REPO` | Client repository name | imgfloat-j |
 | `SPRING_SERVLET_MULTIPART_MAX_FILE_SIZE` | Maximum upload file size | 10MB |
 | `SPRING_SERVLET_MULTIPART_MAX_REQUEST_SIZE` | Maximum upload request size | 10MB |
 | `IMGFLOAT_GITHUB_OWNER` | GitHub owner used to build desktop download links | Kruhlmann |
@@ -34,5 +36,7 @@ If you want to use the default development setup your `.env` file should look li
 ```sh
 TWITCH_CLIENT_ID=...
 TWITCH_CLIENT_SECRET=...
+IMGFLOAT_GITHUB_OWNER=...
+IMGFLOAT_GITHUB_REPO=...
 IMGFLOAT_INITIAL_TWITCH_USERNAME_SYSADMIN=...
 ```
diff --git a/src/main/java/dev/kruhlmann/imgfloat/service/VersionService.java b/src/main/java/dev/kruhlmann/imgfloat/service/VersionService.java
index 80d845f..197eeec 100644
--- a/src/main/java/dev/kruhlmann/imgfloat/service/VersionService.java
+++ b/src/main/java/dev/kruhlmann/imgfloat/service/VersionService.java
@@ -2,6 +2,7 @@ package dev.kruhlmann.imgfloat.service;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.FileNotFoundException;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -22,7 +23,7 @@ public class VersionService {
     private final String clientVersion;
     private final String releaseVersion;
 
-    public VersionService() {
+    public VersionService() throws IOException {
         this.serverVersion = resolveServerVersion();
         this.clientVersion = resolveClientVersion();
         this.releaseVersion = normalizeReleaseVersion(this.clientVersion);
@@ -61,14 +62,6 @@ public class VersionService {
         return "unknown";
     }
 
-    private String resolveClientVersion() {
-        try {
-            return getPackageJsonVersion();
-        } catch (IOException e) {
-            throw new IllegalStateException("Client manifest is missing", e);
-        }
-    }
-
     private String normalizeReleaseVersion(String baseVersion) throws IllegalStateException {
         String normalized = baseVersion.trim();
         normalized = normalized.replaceFirst("(?i)^v", "");
@@ -154,10 +147,10 @@ public class VersionService {
         return null;
     }
 
-    private String getPackageJsonVersion() throws IOException {
+    private String resolveClientVersion() throws IOException {
         Path packageJsonPath = Paths.get("package.json");
         if (!Files.exists(packageJsonPath) || !Files.isRegularFile(packageJsonPath)) {
-            return null;
+            throw new FileNotFoundException("package.json not found at " + packageJsonPath.toAbsolutePath());
         }
 
         String packageJson = Files.readString(packageJsonPath, StandardCharsets.UTF_8);
@@ -169,6 +162,6 @@ public class VersionService {
             }
         }
 
-        return null;
+        throw new IllegalStateException("Version not found or invalid in package.json");
     }
 }
diff --git a/src/main/resources/templates/channels.html b/src/main/resources/templates/channels.html
index 9ab3439..337390c 100644
--- a/src/main/resources/templates/channels.html
+++ b/src/main/resources/templates/channels.html
@@ -10,7 +10,7 @@
         <div class="channels-shell">
             <header class="channels-header">
                 <div class="brand">
-                    <div class="brand-mark">IF</div>
+                    <img class="brand-mark" alt="brand" src="/img/brand.png" />
                     <div>
                         <div class="brand-title">Imgfloat</div>
                         <div class="brand-subtitle">Twitch overlay manager</div>
diff --git a/src/main/resources/templates/settings.html b/src/main/resources/templates/settings.html
index d48d330..77c03bc 100644
--- a/src/main/resources/templates/settings.html
+++ b/src/main/resources/templates/settings.html
@@ -22,7 +22,7 @@
         <div class="settings-shell">
             <header class="settings-header">
                 <div class="brand">
-                    <div class="brand-mark">IF</div>
+                    <img class="brand-mark" alt="brand" src="/img/brand.png" />
                     <div>
                         <div class="brand-title">Imgfloat</div>
                         <div class="brand-subtitle">Twitch overlay manager</div>