diff --git a/src/AuditLog/AuditLog.php b/src/AuditLog/AuditLog.php
index f155165..91df2f8 100644
--- a/src/AuditLog/AuditLog.php
+++ b/src/AuditLog/AuditLog.php
@@ -11,11 +11,9 @@ use Misuzu\Pagination;
 use Misuzu\Users\User;
 
 class AuditLog {
-    private IDbConnection $dbConn;
     private DbStatementCache $cache;
 
     public function __construct(IDbConnection $dbConn) {
-        $this->dbConn = $dbConn;
         $this->cache = new DbStatementCache($dbConn);
     }
 
@@ -34,8 +32,8 @@ class AuditLog {
         $args = 0;
         $query = 'SELECT COUNT(*) FROM msz_audit_log';
         if($hasUserInfo) {
-            $query .= (++$args > 1 ? ' AND' : ' WHERE');
-            $query .= ' user_id = ?';
+            ++$args;
+            $query .= ' WHERE user_id = ?';
         }
         if($hasRemoteAddr) {
             $query .= (++$args > 1 ? ' AND' : ' WHERE');
@@ -77,8 +75,8 @@ class AuditLog {
         $args = 0;
         $query = 'SELECT user_id, log_action, log_params, UNIX_TIMESTAMP(log_created), INET6_NTOA(log_ip), log_country FROM msz_audit_log';
         if($hasUserInfo) {
-            $query .= (++$args > 1 ? ' AND' : ' WHERE');
-            $query .= ' user_id = ?';
+            ++$args;
+            $query .= ' WHERE user_id = ?';
         }
         if($hasRemoteAddr) {
             $query .= (++$args > 1 ? ' AND' : ' WHERE');
diff --git a/src/AuthToken.php b/src/AuthToken.php
index f51f17f..138f64a 100644
--- a/src/AuthToken.php
+++ b/src/AuthToken.php
@@ -131,8 +131,8 @@ class AuthToken {
             if(!hash_equals($realHash, $userHash))
                 return $obj;
 
-            extract(unpack('Ntimestamp', $timestamp));
-            $obj->timestamp = $timestamp;
+            $unpacked = unpack('Nts', $timestamp);
+            $obj->timestamp = (int)$unpacked['ts'];
 
             $stream = MemoryStream::fromString($data);
             $stream->seek(0);
diff --git a/src/Changelog/Changelog.php b/src/Changelog/Changelog.php
index c5eee52..ad6965c 100644
--- a/src/Changelog/Changelog.php
+++ b/src/Changelog/Changelog.php
@@ -111,8 +111,8 @@ class Changelog {
 
         $query = 'SELECT COUNT(*) FROM msz_changelog_changes';
         if($hasUserInfo) {
-            $query .= (++$args > 1 ? ' AND' : ' WHERE');
-            $query .= ' user_id = ?';
+            ++$args;
+            $query .= ' WHERE user_id = ?';
         }
         if($hasDateTime) {
             $query .= (++$args > 1 ? ' AND' : ' WHERE');
@@ -166,8 +166,8 @@ class Changelog {
 
         $query = 'SELECT change_id, user_id, change_action, UNIX_TIMESTAMP(change_created), change_log, change_text FROM msz_changelog_changes';
         if($hasUserInfo) {
-            $query .= (++$args > 1 ? ' AND' : ' WHERE');
-            $query .= ' user_id = ?';
+            ++$args;
+            $query .= ' WHERE user_id = ?';
         }
         if($hasDateTime) {
             $query .= (++$args > 1 ? ' AND' : ' WHERE');
diff --git a/src/Comments/Comments.php b/src/Comments/Comments.php
index 66013c8..bb85365 100644
--- a/src/Comments/Comments.php
+++ b/src/Comments/Comments.php
@@ -231,12 +231,12 @@ class Comments {
         $query = 'SELECT COUNT(*) FROM msz_comments_posts';
 
         if($hasParent) {
-            $query .= (++$args > 1 ? ' AND' : ' WHERE');
-            $query .= ' comment_reply_to = ?';
+            ++$args;
+            $query .= ' WHERE comment_reply_to = ?';
         } else {
             if($hasCategory) {
-                $query .= (++$args > 1 ? ' AND' : ' WHERE');
-                $query .= ' category_id = ?';
+                ++$args;
+                $query .= ' WHERE category_id = ?';
             }
 
             if(!$includeReplies) {
@@ -295,12 +295,12 @@ class Comments {
         $query .= ' FROM msz_comments_posts AS cpp';
 
         if($hasParent) {
-            $query .= (++$args > 1 ? ' AND' : ' WHERE');
-            $query .= ' comment_reply_to = ?';
+            ++$args;
+            $query .= ' WHERE comment_reply_to = ?';
         } else {
             if($hasCategory) {
-                $query .= (++$args > 1 ? ' AND' : ' WHERE');
-                $query .= ' category_id = ?';
+                ++$args;
+                $query .= ' WHERE category_id = ?';
             }
 
             if(!$includeReplies) {
diff --git a/src/Config/DbConfig.php b/src/Config/DbConfig.php
index 40d228e..d312218 100644
--- a/src/Config/DbConfig.php
+++ b/src/Config/DbConfig.php
@@ -11,12 +11,10 @@ use Misuzu\DbStatementCache;
 use Misuzu\Pagination;
 
 class DbConfig implements IConfig {
-    private IDbConnection $dbConn;
     private DbStatementCache $cache;
     private array $values = [];
 
     public function __construct(IDbConnection $dbConn) {
-        $this->dbConn = $dbConn;
         $this->cache = new DbStatementCache($dbConn);
     }
 
@@ -265,16 +263,6 @@ class DbConfig implements IConfig {
         return $valueInfo?->isArray() ? $valueInfo->getArray() : $default;
     }
 
-    private function setValue(string $name, $value): void {
-        $this->values[$name] = $value;
-        $value = serialize($value);
-
-        $stmt = $this->cache->get('REPLACE INTO msz_config (config_name, config_value) VALUES (?, ?)');
-        $stmt->addParameter(1, $name);
-        $stmt->addParameter(2, $value);
-        $stmt->execute();
-    }
-
     public function setValues(array $values): void {
         if(empty($values))
             return;
diff --git a/src/Config/DbConfigValueInfo.php b/src/Config/DbConfigValueInfo.php
index 16ec885..f8941c6 100644
--- a/src/Config/DbConfigValueInfo.php
+++ b/src/Config/DbConfigValueInfo.php
@@ -24,6 +24,7 @@ class DbConfigValueInfo implements IConfigValueInfo {
             'i' => 'int',
             'b' => 'bool',
             'd' => 'float',
+            default => 'unknown',
         };
     }
 
diff --git a/src/Config/ScopedConfig.php b/src/Config/ScopedConfig.php
index 06ea5d9..f8fbc9d 100644
--- a/src/Config/ScopedConfig.php
+++ b/src/Config/ScopedConfig.php
@@ -24,7 +24,7 @@ class ScopedConfig implements IConfig {
 
     private function prefixNames(string|array $names): array {
         if(is_string($names))
-            return [$this->prefix . $name];
+            return [$this->prefix . $names];
 
         foreach($names as $key => $name)
             $names[$key] = $this->prefix . $name;
@@ -41,7 +41,7 @@ class ScopedConfig implements IConfig {
     }
 
     public function hasValues(string|array $names): bool {
-        $this->config->hasValues($this->prefixNames($names));
+        return $this->config->hasValues($this->prefixNames($names));
     }
 
     public function removeValues(string|array $names): void {
diff --git a/src/Feeds/AtomFeedSerializer.php b/src/Feeds/AtomFeedSerializer.php
index 486017a..2905293 100644
--- a/src/Feeds/AtomFeedSerializer.php
+++ b/src/Feeds/AtomFeedSerializer.php
@@ -3,15 +3,17 @@ namespace Misuzu\Feeds;
 
 use DOMDocument;
 use DOMElement;
+use DOMNode;
 
 class AtomFeedSerializer extends XmlFeedSerializer {
     protected function formatTime(int $time): string {
         return date('c', $time);
     }
 
-    protected function createRoot(DOMDocument $document, Feed $feed): DOMElement {
+    protected function createRoot(DOMDocument $document, Feed $feed): DOMNode {
         $atom = $document->appendChild($document->createElement('feed'));
-        $atom->setAttribute('xmlns', 'http://www.w3.org/2005/Atom');
+        if($atom instanceof DOMElement)
+            $atom->setAttribute('xmlns', 'http://www.w3.org/2005/Atom');
 
         $atom->appendChild(
             $document->createElement(
@@ -25,32 +27,32 @@ class AtomFeedSerializer extends XmlFeedSerializer {
         return $atom;
     }
 
-    protected function createTitle(DOMDocument $document, string $title): DOMElement {
+    protected function createTitle(DOMDocument $document, string $title): DOMNode {
         return $document->createElement('title', $this->cleanString($title));
     }
 
-    protected function createDescription(DOMDocument $document, string $description): ?DOMElement {
+    protected function createDescription(DOMDocument $document, string $description): ?DOMNode {
         return $document->createElement('subtitle', $this->cleanString($description));
     }
 
-    protected function createLastUpdate(DOMDocument $document, int $lastUpdate): ?DOMElement {
+    protected function createLastUpdate(DOMDocument $document, int $lastUpdate): ?DOMNode {
         return $document->createElement('updated', $this->formatTime($lastUpdate));
     }
 
-    protected function createContentUrl(DOMDocument $document, string $contentUrl): ?DOMElement {
+    protected function createContentUrl(DOMDocument $document, string $contentUrl): ?DOMNode {
         $link = $document->createElement('link');
         $link->setAttribute('href', $this->cleanString($contentUrl));
         return $link;
     }
 
-    protected function createFeedUrl(DOMDocument $document, string $feedUrl): ?DOMElement {
+    protected function createFeedUrl(DOMDocument $document, string $feedUrl): ?DOMNode {
         $link = $document->createElement('link');
         $link->setAttribute('href', $this->cleanString($feedUrl));
         $link->setAttribute('ref', 'self');
         return $link;
     }
 
-    protected function createItem(DOMDocument $document, FeedItem $feedItem): DOMElement {
+    protected function createItem(DOMDocument $document, FeedItem $feedItem): DOMNode {
         $elem = $document->createElement('entry');
 
         $elem->appendChild(
@@ -65,40 +67,40 @@ class AtomFeedSerializer extends XmlFeedSerializer {
         return $elem;
     }
 
-    protected function createItemTitle(DOMDocument $document, string $title): DOMElement {
+    protected function createItemTitle(DOMDocument $document, string $title): DOMNode {
         return $document->createElement('title', $this->cleanString($title));
     }
 
-    protected function createItemSummary(DOMDocument $document, string $summary): ?DOMElement {
+    protected function createItemSummary(DOMDocument $document, string $summary): ?DOMNode {
         return $document->createElement('summary', $this->cleanString($summary));
     }
 
-    protected function createItemContent(DOMDocument $document, string $content): ?DOMElement {
+    protected function createItemContent(DOMDocument $document, string $content): ?DOMNode {
         $elem = $document->createElement('content', $this->cleanString($content));
         $elem->setAttribute('type', 'html');
         return $elem;
     }
 
-    protected function createItemCreationDate(DOMDocument $document, int $creationDate): ?DOMElement {
+    protected function createItemCreationDate(DOMDocument $document, int $creationDate): ?DOMNode {
         return $document->createElement('updated', $this->formatTime($creationDate));
     }
 
-    protected function createItemUniqueId(DOMDocument $document, string $uniqueId): ?DOMElement {
+    protected function createItemUniqueId(DOMDocument $document, string $uniqueId): ?DOMNode {
         return null;
     }
 
-    protected function createItemContentUrl(DOMDocument $document, string $contentUrl): ?DOMElement {
+    protected function createItemContentUrl(DOMDocument $document, string $contentUrl): ?DOMNode {
         $elem = $document->createElement('link');
         $elem->setAttribute('href', $this->cleanString($contentUrl));
         $elem->setAttribute('type', 'text/html');
         return $elem;
     }
 
-    protected function createItemCommentsUrl(DOMDocument $document, string $commentsUrl): ?DOMElement {
+    protected function createItemCommentsUrl(DOMDocument $document, string $commentsUrl): ?DOMNode {
         return null;
     }
 
-    protected function createItemAuthor(DOMDocument $document, ?string $authorName, ?string $authorUrl): ?DOMElement {
+    protected function createItemAuthor(DOMDocument $document, ?string $authorName, ?string $authorUrl): ?DOMNode {
         if(empty($authorName) && empty($authorUrl))
             return null;
 
diff --git a/src/Feeds/RssFeedSerializer.php b/src/Feeds/RssFeedSerializer.php
index f876cd9..f70758b 100644
--- a/src/Feeds/RssFeedSerializer.php
+++ b/src/Feeds/RssFeedSerializer.php
@@ -3,80 +3,83 @@ namespace Misuzu\Feeds;
 
 use DOMDocument;
 use DOMElement;
+use DOMNode;
 
 class RssFeedSerializer extends XmlFeedSerializer {
     protected function formatTime(int $time): string {
         return date('r', $time);
     }
 
-    protected function createRoot(DOMDocument $document, Feed $feed): DOMElement {
+    protected function createRoot(DOMDocument $document, Feed $feed): DOMNode {
         $rss = $document->appendChild($document->createElement('rss'));
-        $rss->setAttribute('version', '2.0');
-        $rss->setAttribute('xmlns:atom', 'http://www.w3.org/2005/Atom');
+        if($rss instanceof DOMElement) {
+            $rss->setAttribute('version', '2.0');
+            $rss->setAttribute('xmlns:atom', 'http://www.w3.org/2005/Atom');
+        }
 
         $channel = $rss->appendChild($document->createElement('channel'));
         $channel->appendChild($document->createElement('ttl', '900'));
         return $channel;
     }
 
-    protected function createTitle(DOMDocument $document, string $title): DOMElement {
+    protected function createTitle(DOMDocument $document, string $title): DOMNode {
         return $document->createElement('title', $this->cleanString($title));
     }
 
-    protected function createDescription(DOMDocument $document, string $description): ?DOMElement {
+    protected function createDescription(DOMDocument $document, string $description): ?DOMNode {
         return $document->createElement('description', $this->cleanString($description));
     }
 
-    protected function createLastUpdate(DOMDocument $document, int $lastUpdate): ?DOMElement {
+    protected function createLastUpdate(DOMDocument $document, int $lastUpdate): ?DOMNode {
         return $document->createElement('pubDate', $this->formatTime($lastUpdate));
     }
 
-    protected function createContentUrl(DOMDocument $document, string $contentUrl): ?DOMElement {
+    protected function createContentUrl(DOMDocument $document, string $contentUrl): ?DOMNode {
         return $document->createElement('link', $this->cleanString($contentUrl));
     }
 
-    protected function createFeedUrl(DOMDocument $document, string $feedUrl): ?DOMElement {
+    protected function createFeedUrl(DOMDocument $document, string $feedUrl): ?DOMNode {
         $link = $document->createElement('atom:link');
         $link->setAttribute('href', $this->cleanString($feedUrl));
         $link->setAttribute('ref', 'self');
         return $link;
     }
 
-    protected function createItem(DOMDocument $document, FeedItem $feedItem): DOMElement {
+    protected function createItem(DOMDocument $document, FeedItem $feedItem): DOMNode {
         return $document->createElement('item');
     }
 
-    protected function createItemTitle(DOMDocument $document, string $title): DOMElement {
+    protected function createItemTitle(DOMDocument $document, string $title): DOMNode {
         return $document->createElement('title', $this->cleanString($title));
     }
 
-    protected function createItemSummary(DOMDocument $document, string $summary): ?DOMElement {
+    protected function createItemSummary(DOMDocument $document, string $summary): ?DOMNode {
         return $document->createElement('description', $this->cleanString($summary));
     }
 
-    protected function createItemContent(DOMDocument $document, string $content): ?DOMElement {
+    protected function createItemContent(DOMDocument $document, string $content): ?DOMNode {
         return null;
     }
 
-    protected function createItemCreationDate(DOMDocument $document, int $creationDate): ?DOMElement {
+    protected function createItemCreationDate(DOMDocument $document, int $creationDate): ?DOMNode {
         return $document->createElement('pubDate', $this->formatTime($creationDate));
     }
 
-    protected function createItemUniqueId(DOMDocument $document, string $uniqueId): ?DOMElement {
+    protected function createItemUniqueId(DOMDocument $document, string $uniqueId): ?DOMNode {
         $elem = $document->createElement('guid', $uniqueId);
         $elem->setAttribute('isPermaLink', 'true');
         return $elem;
     }
 
-    protected function createItemContentUrl(DOMDocument $document, string $contentUrl): ?DOMElement {
+    protected function createItemContentUrl(DOMDocument $document, string $contentUrl): ?DOMNode {
         return $document->createElement('link', $contentUrl);
     }
 
-    protected function createItemCommentsUrl(DOMDocument $document, string $commentsUrl): ?DOMElement {
+    protected function createItemCommentsUrl(DOMDocument $document, string $commentsUrl): ?DOMNode {
         return $document->createElement('comments', $commentsUrl);
     }
 
-    protected function createItemAuthor(DOMDocument $document, ?string $authorName, ?string $authorUrl): ?DOMElement {
+    protected function createItemAuthor(DOMDocument $document, ?string $authorName, ?string $authorUrl): ?DOMNode {
         return null;
     }
 }
diff --git a/src/Feeds/XmlFeedSerializer.php b/src/Feeds/XmlFeedSerializer.php
index 289e0b3..c7236a6 100644
--- a/src/Feeds/XmlFeedSerializer.php
+++ b/src/Feeds/XmlFeedSerializer.php
@@ -2,7 +2,7 @@
 namespace Misuzu\Feeds;
 
 use DOMDocument;
-use DOMElement;
+use DOMNode;
 
 abstract class XmlFeedSerializer extends FeedSerializer {
     public function serializeFeed(Feed $feed): string {
@@ -28,7 +28,7 @@ abstract class XmlFeedSerializer extends FeedSerializer {
         return $document->saveXML();
     }
 
-    private function serializeFeedItem(DOMDocument $document, FeedItem $feedItem): DOMElement {
+    private function serializeFeedItem(DOMDocument $document, FeedItem $feedItem): DOMNode {
         $elem = $this->createItem($document, $feedItem);
         $elem->appendChild($this->createItemTitle($document, $feedItem->getTitle()));
 
@@ -54,26 +54,26 @@ abstract class XmlFeedSerializer extends FeedSerializer {
         return htmlspecialchars($string, ENT_XML1 | ENT_COMPAT | ENT_SUBSTITUTE);
     }
 
-    protected static function appendChild(DOMElement $parent, ?DOMElement $elem): ?DOMElement {
+    protected static function appendChild(DOMNode $parent, ?DOMNode $elem): ?DOMNode {
         if($elem !== null)
             return $parent->appendChild($elem);
         return $elem;
     }
 
     abstract protected function formatTime(int $time): string;
-    abstract protected function createRoot(DOMDocument $document, Feed $feed): DOMElement;
-    abstract protected function createTitle(DOMDocument $document, string $title): DOMElement;
-    abstract protected function createDescription(DOMDocument $document, string $description): ?DOMElement;
-    abstract protected function createLastUpdate(DOMDocument $document, int $lastUpdate): ?DOMElement;
-    abstract protected function createContentUrl(DOMDocument $document, string $contentUrl): ?DOMElement;
-    abstract protected function createFeedUrl(DOMDocument $document, string $feedUrl): ?DOMElement;
-    abstract protected function createItem(DOMDocument $document, FeedItem $feedItem): DOMElement;
-    abstract protected function createItemTitle(DOMDocument $document, string $title): DOMElement;
-    abstract protected function createItemSummary(DOMDocument $document, string $summary): ?DOMElement;
-    abstract protected function createItemContent(DOMDocument $document, string $content): ?DOMElement;
-    abstract protected function createItemCreationDate(DOMDocument $document, int $creationDate): ?DOMElement;
-    abstract protected function createItemUniqueId(DOMDocument $document, string $uniqueId): ?DOMElement;
-    abstract protected function createItemContentUrl(DOMDocument $document, string $contentUrl): ?DOMElement;
-    abstract protected function createItemCommentsUrl(DOMDocument $document, string $commentsUrl): ?DOMElement;
-    abstract protected function createItemAuthor(DOMDocument $document, ?string $authorName, ?string $authorUrl): ?DOMElement;
+    abstract protected function createRoot(DOMDocument $document, Feed $feed): DOMNode;
+    abstract protected function createTitle(DOMDocument $document, string $title): DOMNode;
+    abstract protected function createDescription(DOMDocument $document, string $description): ?DOMNode;
+    abstract protected function createLastUpdate(DOMDocument $document, int $lastUpdate): ?DOMNode;
+    abstract protected function createContentUrl(DOMDocument $document, string $contentUrl): ?DOMNode;
+    abstract protected function createFeedUrl(DOMDocument $document, string $feedUrl): ?DOMNode;
+    abstract protected function createItem(DOMDocument $document, FeedItem $feedItem): DOMNode;
+    abstract protected function createItemTitle(DOMDocument $document, string $title): DOMNode;
+    abstract protected function createItemSummary(DOMDocument $document, string $summary): ?DOMNode;
+    abstract protected function createItemContent(DOMDocument $document, string $content): ?DOMNode;
+    abstract protected function createItemCreationDate(DOMDocument $document, int $creationDate): ?DOMNode;
+    abstract protected function createItemUniqueId(DOMDocument $document, string $uniqueId): ?DOMNode;
+    abstract protected function createItemContentUrl(DOMDocument $document, string $contentUrl): ?DOMNode;
+    abstract protected function createItemCommentsUrl(DOMDocument $document, string $commentsUrl): ?DOMNode;
+    abstract protected function createItemAuthor(DOMDocument $document, ?string $authorName, ?string $authorUrl): ?DOMNode;
 }
diff --git a/src/Forum/topic.php b/src/Forum/topic.php
index f79999c..727b8ba 100644
--- a/src/Forum/topic.php
+++ b/src/Forum/topic.php
@@ -616,7 +616,7 @@ function forum_topic_can_delete($topicId, ?int $userId = null): int {
             return MSZ_E_FORUM_TOPIC_DELETE_OLD;
         }
 
-        $totalReplies = $topic['topic_count_posts'] + $topic['topic_count_posts_deleted'];
+        $totalReplies = (int)$topic['topic_count_posts'] + (int)$topic['topic_count_posts_deleted'];
 
         if($totalReplies > MSZ_E_FORUM_TOPIC_DELETE_POSTS) {
             return MSZ_E_FORUM_TOPIC_DELETE_POSTS;
diff --git a/src/Http/Handlers/AssetsHandler.php b/src/Http/Handlers/AssetsHandler.php
index d942dfb..61eb128 100644
--- a/src/Http/Handlers/AssetsHandler.php
+++ b/src/Http/Handlers/AssetsHandler.php
@@ -86,7 +86,7 @@ final class AssetsHandler extends Handler {
     }
 
     public function serveLegacy($response, $request) {
-        $assetUserId = (int)$request->getParam('u', FILTER_SANITIZE_NUMBER_INT);
+        $assetUserId = $request->getParam('u', FILTER_SANITIZE_NUMBER_INT);
 
         switch($request->getParam('m')) {
             case 'avatar':
diff --git a/src/Imaging/Image.php b/src/Imaging/Image.php
index 6526645..70abaea 100644
--- a/src/Imaging/Image.php
+++ b/src/Imaging/Image.php
@@ -47,8 +47,8 @@ abstract class Image {
             $this->resize($targetWidth, $targetHeight);
             $this->crop(
                 $dimensions, $dimensions,
-                ceil(($targetWidth - $dimensions) / 2),
-                ceil(($targetHeight - $dimensions) / 2)
+                (int)ceil(($targetWidth - $dimensions) / 2),
+                (int)ceil(($targetHeight - $dimensions) / 2)
             );
             $this->setPage($dimensions, $dimensions, 0, 0);
         } while($this->next());
diff --git a/src/Mailer.php b/src/Mailer.php
index 896ddbe..bfd7378 100644
--- a/src/Mailer.php
+++ b/src/Mailer.php
@@ -15,9 +15,6 @@ final class Mailer {
     private static IConfig $config;
     private static $transport = null;
 
-    private static string $senderName = 'Flashii';
-    private static string $senderAddr = 'sys@flashii.net';
-
     public static function init(IConfig $config): void {
         self::$config = $config;
     }
@@ -49,12 +46,6 @@ final class Mailer {
         $dsn .= ':';
         $dsn .= $config['port'] ?? 25;
 
-        if(!empty($config['sender.name']))
-            self::$senderName = $config['sender.name'];
-
-        if(!empty($config['sender.address']))
-            self::$senderAddr = $config['sender.address'];
-
         return $dsn;
     }
 
@@ -71,8 +62,8 @@ final class Mailer {
         }
 
         $config = self::$config->getValues([
-            'sender.name:s',
-            'sender.address:s',
+            ['sender.name:s', 'Flashii'],
+            ['sender.address:s', 'sys@flashii.net'],
         ]);
 
         $message = new SymfonyMessage;
@@ -90,14 +81,8 @@ final class Mailer {
         $message->subject(trim($subject));
         $message->text(trim($contents));
 
-        try {
-            self::getTransport()->send($message);
-            return true;
-        } catch(TransportExceptionInterface $ex) {
-            if(MSZ_DEBUG)
-                throw $ex;
-            return false;
-        }
+        self::getTransport()->send($message);
+        return true;
     }
 
     public static function template(string $name, array $vars = []): array {
diff --git a/src/MisuzuContext.php b/src/MisuzuContext.php
index 53ff120..52d22ce 100644
--- a/src/MisuzuContext.php
+++ b/src/MisuzuContext.php
@@ -10,7 +10,6 @@ use Misuzu\Emoticons\Emotes;
 use Misuzu\News\News;
 use Misuzu\SharpChat\SharpChatRoutes;
 use Misuzu\Users\User;
-use Misuzu\Users\Users;
 use Index\Data\IDbConnection;
 use Index\Data\Migration\IDbMigrationRepo;
 use Index\Data\Migration\DbMigrationManager;
@@ -25,7 +24,6 @@ use Index\Routing\Router;
 class MisuzuContext {
     private IDbConnection $dbConn;
     private IConfig $config;
-    private Users $users;
     private HttpFx $router;
     private AuditLog $auditLog;
     private Emotes $emotes;
@@ -36,7 +34,6 @@ class MisuzuContext {
     public function __construct(IDbConnection $dbConn, IConfig $config) {
         $this->dbConn = $dbConn;
         $this->config = $config;
-        $this->users = new Users($this->dbConn);
         $this->auditLog = new AuditLog($this->dbConn);
         $this->emotes = new Emotes($this->dbConn);
         $this->changelog = new Changelog($this->dbConn);
@@ -69,10 +66,6 @@ class MisuzuContext {
         return $this->router->getRouter();
     }
 
-    /*public function getUsers(): Users {
-        return $this->users;
-    }*/
-
     public function getEmotes(): Emotes {
         return $this->emotes;
     }
diff --git a/src/News/News.php b/src/News/News.php
index 5c87861..3bcc8c7 100644
--- a/src/News/News.php
+++ b/src/News/News.php
@@ -182,8 +182,8 @@ class News {
         $args = 0;
         $query = 'SELECT COUNT(*) FROM msz_news_posts';
         if($onlyFeatured) {
-            $query .= (++$args > 1 ? ' AND' : ' WHERE');
-            $query .= ' post_is_featured = 1';
+            ++$args;
+            $query .= ' WHERE post_is_featured = 1';
         }
         if(!$includeScheduled) {
             $query .= (++$args > 1 ? ' AND' : ' WHERE');
@@ -247,8 +247,8 @@ class News {
 
         $query = self::POSTS_SELECT_QUERY;
         if($onlyFeatured) {
-            $query .= (++$args > 1 ? ' AND' : ' WHERE');
-            $query .= ' post_is_featured = 1';
+            ++$args;
+            $query .= ' WHERE post_is_featured = 1';
         }
         if(!$includeScheduled) {
             $query .= (++$args > 1 ? ' AND' : ' WHERE');
diff --git a/src/SharpChat/SharpChatRoutes.php b/src/SharpChat/SharpChatRoutes.php
index 4804626..d295ee4 100644
--- a/src/SharpChat/SharpChatRoutes.php
+++ b/src/SharpChat/SharpChatRoutes.php
@@ -3,6 +3,7 @@ namespace Misuzu\SharpChat;
 
 use Index\Colour\Colour;
 use Index\Routing\IRouter;
+use Index\Http\HttpFx;
 use Misuzu\AuthToken;
 use Misuzu\Config\IConfig;
 use Misuzu\Emoticons\Emotes;
@@ -35,23 +36,24 @@ final class SharpChatRoutes {
         }
 
         // Simplify default error pages
-        $router->use('/_sockchat', function() use($router) {
-            $router->addErrorHandler(400, function($response) {
-                $response->setContent('HTTP 400');
+        if($router instanceof HttpFx)
+            $router->use('/_sockchat', function() use($router) {
+                $router->addErrorHandler(400, function($response) {
+                    $response->setContent('HTTP 400');
+                });
+                $router->addErrorHandler(403, function($response) {
+                    $response->setContent('HTTP 403');
+                });
+                $router->addErrorHandler(404, function($response) {
+                    $response->setContent('HTTP 404');
+                });
+                $router->addErrorHandler(500, function($response) {
+                    $response->setContent('HTTP 500');
+                });
+                $router->addErrorHandler(503, function($response) {
+                    $response->setContent('HTTP 503');
+                });
             });
-            $router->addErrorHandler(403, function($response) {
-                $response->setContent('HTTP 403');
-            });
-            $router->addErrorHandler(404, function($response) {
-                $response->setContent('HTTP 404');
-            });
-            $router->addErrorHandler(500, function($response) {
-                $response->setContent('HTTP 500');
-            });
-            $router->addErrorHandler(503, function($response) {
-                $response->setContent('HTTP 503');
-            });
-        });
 
         // Public endpoints
         $router->get('/_sockchat/emotes', [$this, 'getEmotes']);
@@ -201,6 +203,8 @@ final class SharpChatRoutes {
         } else {
             $bumpString = (string)$request->getContent();
             $signature = $bumpString;
+            $userTime = 0;
+            $bumpList = [];
         }
 
         $userHash = (string)$request->getHeaderFirstLine('X-SharpChat-Signature');
@@ -212,7 +216,6 @@ final class SharpChatRoutes {
             if($userTime < time() - 60)
                 return 403;
         } else {
-            $bumpList = [];
             $bumpInfo = json_decode($bumpString);
             if(empty($bumpInfo))
                 return;
@@ -246,7 +249,7 @@ final class SharpChatRoutes {
         if(strlen($userHash) !== 64)
             return ['success' => false, 'reason' => 'length'];
 
-        if(isset($authInfo) && !empty($authInfo->token) && !empty($authInfo->ip)) {
+        if(!empty($authInfo->token) && !empty($authInfo->ip)) {
             // user_id is discarded now
             // tokens should be entirely unique anyway
 
@@ -257,13 +260,14 @@ final class SharpChatRoutes {
             } else [$authMethod, $authToken] = $tokenParts;
 
             $ipAddress = $authInfo->ip;
-            $signature = "{$authInfo->user_id}#{$authInfo->token}#{$authInfo->ip}";
+            $sigUserId = $authInfo->user_id ?? 0; // still need it for the signature
+            $signature = "{$sigUserId}#{$authInfo->token}#{$authInfo->ip}";
         }
 
-        if(empty($authMethod) || empty($authToken))
+        if(empty($authMethod) || empty($authToken) || empty($ipAddress))
             return ['success' => false, 'reason' => 'data'];
 
-        if(!isset($signature))
+        if(empty($signature))
             $signature = "verify#{$authMethod}#{$authToken}#{$ipAddress}";
 
         $realHash = hash_hmac('sha256', $signature, $this->hashKey);
@@ -463,8 +467,8 @@ final class SharpChatRoutes {
 
         // IPs cannot be banned on their own
         // substituting with the unused Railgun account for now.
-        if(empty($targetId))
-            $targetId = 69;
+        if(empty($userId))
+            $userId = 69;
         if(empty($modId))
             $modId = 69;
 
diff --git a/src/Users/Assets/UserImageAsset.php b/src/Users/Assets/UserImageAsset.php
index c943170..bf5ccdf 100644
--- a/src/Users/Assets/UserImageAsset.php
+++ b/src/Users/Assets/UserImageAsset.php
@@ -93,7 +93,7 @@ abstract class UserImageAsset implements UserImageAssetInterface {
             throw new UserImageAssetFileNotFoundException;
 
         $imageInfo = getimagesize($path);
-        if($imageInfo === false || count($imageInfo) < 3 || $imageInfo[0] < 1 || $imageInfo[1] < 1)
+        if($imageInfo === false || $imageInfo[0] < 1 || $imageInfo[1] < 1)
             throw new UserImageAssetInvalidImageException;
 
         if(!self::isAllowedType($imageInfo[2]))
diff --git a/src/Users/ProfileField.php b/src/Users/ProfileField.php
index fb3ab88..9305381 100644
--- a/src/Users/ProfileField.php
+++ b/src/Users/ProfileField.php
@@ -4,6 +4,12 @@ namespace Misuzu\Users;
 use Misuzu\DB;
 
 class ProfileField {
+    // Database fields
+    public $field_id;
+    public $user_id;
+    public $field_regex;
+    public $field_value;
+
     public static function createField(
         string $fieldKey,
         string $fieldTitle,
diff --git a/src/Users/User.php b/src/Users/User.php
index 4d85b6e..c3c206c 100644
--- a/src/Users/User.php
+++ b/src/Users/User.php
@@ -779,7 +779,12 @@ class User implements HasRankInterface {
     private static function byQueryBase(): string {
         return sprintf(self::QUERY_SELECT, sprintf(self::SELECT, self::TABLE));
     }
-    public static function byId(int $userId): ?self {
+    public static function byId(string|int $userId): ?self {
+        // newer classes all treat ids as if they're strings
+        // php plays nice with it but may as well be sure since phpstan screams about it
+        if(is_string($userId))
+            $userId = (int)$userId;
+
         return self::memoizer()->find($userId, function() use ($userId) {
             $user = DB::prepare(self::byQueryBase() . ' WHERE `user_id` = :user_id')
                 ->bind('user_id', $userId)
diff --git a/src/Users/UserRole.php b/src/Users/UserRole.php
index 875e4a2..2655888 100644
--- a/src/Users/UserRole.php
+++ b/src/Users/UserRole.php
@@ -33,7 +33,6 @@ class UserRole implements ArrayAccess, HasRankInterface {
                          . ', UNIX_TIMESTAMP(%1$s.`role_created`) AS `role_created`';
 
     private $colour = null;
-    private $users = [];
     private $userCount = -1;
 
     public function getId(): int {
diff --git a/src/Users/Users.php b/src/Users/Users.php
deleted file mode 100644
index 4832403..0000000
--- a/src/Users/Users.php
+++ /dev/null
@@ -1,43 +0,0 @@
-<?php
-namespace Misuzu\Users;
-
-use DateTimeImmutable;
-use Index\Data\IDbConnection;
-
-final class Users {
-    private IDbConnection $dbConn;
-
-    private array $cached = [];
-
-    public function __construct(IDbConnection $dbConn) {
-        $this->dbConn = $dbConn;
-    }
-
-    public function getById(string $userId): User {
-        //
-    }
-
-    public function getByName(string $userName): User {
-        //
-    }
-
-    public function getByMailAddress(string $mailAddress): User {
-        //
-    }
-
-    public function getByNameOrMailAddress(string $userNameOrMailAddress): User {
-        //
-    }
-
-    public function getByIdOrName(string $userIdOrName): User {
-        //
-    }
-
-    public function getByBirthDate(DateTimeImmutable $dateTime): array {
-        //
-    }
-
-    public function getByAll(bool $includeDeleted = false, ?Pagination $pagination = null): array {
-        //
-    }
-}
diff --git a/src/manage.php b/src/manage.php
index b042eec..0a2bff8 100644
--- a/src/manage.php
+++ b/src/manage.php
@@ -66,6 +66,7 @@ function manage_perms_apply(array $list, array $post, ?array $raw = null): ?arra
         foreach($section['perms'] as $perm) {
             if(empty($post[$section['section']][$perm['section']]['value']))
                 continue;
+            $perm['perm'] = (int)$perm['perm']; // makes phpstan happy
 
             switch($post[$section['section']][$perm['section']]['value']) {
                 case MSZ_MANAGE_PERM_YES: