diff --git a/notizen.md b/notizen.md
index 22f74d9..362397e 100644
--- a/notizen.md
+++ b/notizen.md
@@ -3,6 +3,4 @@
 ## Zu erledigen
 
 - sanitizing überprüfen
-- Persistenz mit SQLite
 - Datum für Dokumente ergänzen
-- für jedes bestehende Dokument soll es Funktionen zum Aufbereiten und Herunderladen geben in den Formaten pdf/odt (pandoc nutzen) und ogg
diff --git a/readme.md b/readme.md
index cba5e94..6ba4f79 100644
--- a/readme.md
+++ b/readme.md
@@ -34,6 +34,7 @@ proof-of-concept für Partei-Arbeits-Dokumenten-Verwaltung, welche hörbare Vers
 ### Voraussetzungen
 
 - [PHP](https://www.php.net/)-Interpreter für Kommandozeile (Debian-Paket-Name: `php-cli`)
+- SQLite3-Modul für PHP (Debian-Paket-Name: `php-sqlite3`)
 - [FFmpeg](https://ffmpeg.org/) (Debian-Paket-Name: `ffmpeg`)
 - Browser
 
diff --git a/source/entities/doc.php b/source/entities/doc.php
new file mode 100644
index 0000000..1dd4f46
--- /dev/null
+++ b/source/entities/doc.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace rosavox\entities\doc;
+
+
+/**
+ */
+class entity
+{
+	public string $title;
+	
+	public array $authors;
+	
+	public string $content;
+	
+	public ?string $reasoning;
+	
+	public function __construct(
+		string $title,
+		array $authors,
+		string $content,
+		?string $reasoning
+	)
+	{
+		$this->title = $title;
+		$this->authors = $authors;
+		$this->content = $content;
+		$this->reasoning = $reasoning;
+	}
+}
+
+
+/**
+ */
+function empty_() : entity
+{
+	return (new entity(
+		'',
+		[],
+		'',
+		null,
+	));
+}
diff --git a/source/helpers/list.php b/source/helpers/list.php
new file mode 100644
index 0000000..020ee3f
--- /dev/null
+++ b/source/helpers/list.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace rosavox\helpers\list_;
+
+
+/**
+ */
+function sequence(int $length) : array
+{
+	return (($length <= 0) ? [] : \array_merge(sequence($length-1), [$length-1]));
+}
+
+
+/**
+ */
+function map(array $list, \Closure $function) : array
+{
+	$result = [];
+	foreach ($list as $element)
+	{
+		\array_push($result, ($function)($element));
+	}
+	return $result;
+}
+
+
+/**
+ */
+function to_map(array $pairs) : array
+{
+	$result = [];
+	foreach ($pairs as $pair)
+	{
+		$result[$pair['key']] = $pair['value'];
+	}
+	return $result;
+}
+
+ ?>
diff --git a/source/helpers/sqlite.php b/source/helpers/sqlite.php
new file mode 100644
index 0000000..2746947
--- /dev/null
+++ b/source/helpers/sqlite.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace rosavox\helpers\sqlite;
+
+
+/**
+ */
+function placeholder(
+	string $name
+) : string
+{
+	return (':' . $name);
+}
+
+
+/**
+ */
+function map_type(string $type) : string
+{
+	switch ($type)
+	{
+		case 'bool':
+		{
+			return 'INTEGER';
+			break;
+		}
+		case 'integer':
+		{
+			return 'INTEGER';
+			break;
+		}
+		case 'string':
+		{
+			return 'TEXT';
+			break;
+		}
+		default:
+		{
+			throw (new \Exception('unhandled type: ' . $type));
+			break;
+		}
+	}
+}
+
+
+/**
+ */
+function format_value($value) : string
+{
+	if ($value === null)
+	{
+		return 'NULL';
+	}
+	else
+	{
+		$type = \gettype($value);
+		switch ($type)
+		{
+			case 'bool':
+			{
+				return ($value ? '1' : '0');
+				break;
+			}
+			case 'int':
+			{
+				return \sprintf('%u', $value);
+				break;
+			}
+			case 'string':
+			{
+				return \sprintf("'%s'", $value);
+				break;
+			}
+			default:
+			{
+				throw (new \Exception('unhandled type: ' . $type));
+				break;
+			}
+		}
+	}
+}
+
+
+/**
+ */
+function query(string $path, string $template, array $arguments) : array
+{
+	/*
+	\error_log(
+		\json_encode(
+			[
+				'template' => $template,
+				'arguments' => $arguments,
+			]
+		)
+	);
+	 */
+	$connection = new \SQLite3($path);
+	$statement = $connection->prepare($template);
+	foreach ($arguments as $key => $value)
+	{
+		$statement->bindValue(placeholder($key), $value);
+	}
+	$result = $statement->execute();
+	$last_insert_id = $connection->lastInsertRowID();
+	return [
+		'result' => $result,
+		'last_insert_id' => $last_insert_id,
+	];
+}
+
+ ?>
diff --git a/source/helpers/storage-interface.php b/source/helpers/storage-interface.php
new file mode 100644
index 0000000..cc61c0c
--- /dev/null
+++ b/source/helpers/storage-interface.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace rosavox\helpers\storage;
+
+
+/**
+ * @template Key
+ * @template Value
+ */
+interface interface_
+{
+	public function setup() : void;
+	
+	public function list_() : array;
+	
+	public function read(/*Key */$id)/* : Value*/;
+	
+	public function create(/*Value */$value)/* : Key*/;
+	
+	public function update(/*Key */$id, /*Value */$value) : void;
+	
+	public function delete(/*Key */$id) : void;
+}
+
+ ?>
diff --git a/source/helpers/storage.php b/source/helpers/storage-jsonfile.php
similarity index 81%
rename from source/helpers/storage.php
rename to source/helpers/storage-jsonfile.php
index 94149c9..74615a8 100644
--- a/source/helpers/storage.php
+++ b/source/helpers/storage-jsonfile.php
@@ -2,32 +2,31 @@
 
 namespace rosavox\helpers\storage;
 
-/**
- */
-interface interface_
-{
-	public function list_() : array;
-	
-	public function read(int $id);
-	
-	public function create($value) : int;
-	
-	public function update(int $id, $value) : void;
-	
-	public function delete(int $id) : void;
-}
+require_once('helpers/storage-interface.php');
 
 
 /**
  */
-class class_jsonfile implements interface_
+class class_jsonfile implements interface_/*<int,any>*/
 {
+	
+	/**
+	 */
 	private string $path;
 	
+	
+	/**
+	 */
 	private \Closure $id_encode;
 	
+	
+	/**
+	 */
 	private \Closure $id_decode;
 	
+	
+	/**
+	 */
 	public function __construct(
 		string $path,
 		\Closure $id_encode,
@@ -39,6 +38,9 @@ class class_jsonfile implements interface_
 		$this->id_decode = $id_decode;
 	}
 	
+	
+	/**
+	 */
 	private function get() : array
 	{
 		$content = (\file_exists($this->path) ? \file_get_contents($this->path) : null);
@@ -51,12 +53,26 @@ class class_jsonfile implements interface_
 		);
 	}
 	
+	
+	/**
+	 */
 	private function put(array $data) : void
 	{
 		$content = \json_encode($data, \JSON_PRETTY_PRINT);
 		\file_put_contents($this->path, $content);
 	}
 	
+	
+	/**
+	 */
+	public function setup() : void
+	{
+		// do nothing
+	}
+	
+	
+	/**
+	 */
 	public function list_() : array
 	{
 		$data = $this->get();
@@ -69,7 +85,10 @@ class class_jsonfile implements interface_
 		);
 	}
 	
-	public function read(int $id)
+	
+	/**
+	 */
+	public function read($id)
 	{
 		$data = $this->get();
 		$id_encoded = ($this->id_encode)($id);
@@ -83,7 +102,7 @@ class class_jsonfile implements interface_
 		}
 	}
 	
-	public function create($value) : int
+	public function create($value)
 	{
 		$data = $this->get();
 		$id = ($data['last_id'] + 1);
@@ -94,7 +113,10 @@ class class_jsonfile implements interface_
 		return $id;
 	}
 
-	public function update(int $id, $value) : void
+	
+	/**
+	 */
+	public function update($id, $value) : void
 	{
 		$data = $this->get();
 		$id_encoded = ($this->id_encode)($id);
@@ -109,7 +131,10 @@ class class_jsonfile implements interface_
 		}
 	}
 
-	public function delete(int $id) : void
+	
+	/**
+	 */
+	public function delete($id) : void
 	{
 		$data = $this->get();
 		$id_encoded = ($this->id_encode)($id);
@@ -123,6 +148,7 @@ class class_jsonfile implements interface_
 			$this->put($data);
 		}
 	}
+	
 }
 
  ?>
diff --git a/source/helpers/storage-sqlitetable.php b/source/helpers/storage-sqlitetable.php
new file mode 100644
index 0000000..23dabeb
--- /dev/null
+++ b/source/helpers/storage-sqlitetable.php
@@ -0,0 +1,311 @@
+<?php
+
+namespace rosavox\helpers\storage;
+
+require_once('helpers/list.php');
+require_once('helpers/sqlite.php');
+require_once('helpers/storage-interface.php');
+
+
+/**
+ */
+class class_sqlitetable implements interface_/*<int,list<any>>*/
+{
+	
+	/**
+	 */
+	public static function field_name(
+		array $field
+	) : string
+	{
+		return \rosavox\helpers\string_\coin(
+			'field_{{name}}',
+			[
+				'name' => $field['name'],
+			]
+		);
+	}
+	
+	
+	/**
+	 */
+	private string $path;
+	
+	
+	/**
+	 */
+	private string $name;
+	
+	
+	/**
+	 * @param $fields {
+	 *     list<
+	 *         record<
+	 *             name:string,
+	 *             type:string,
+	 *             nullable:boolean,
+	 *         >
+	 *     >
+	 * }
+	 */
+	private array $fields;
+	
+	
+	/**
+	 */
+	public function __construct(
+		string $path,
+		string $name,
+		array $fields
+	)
+	{
+		$this->path = $path;
+		$this->name = $name;
+		$this->fields = $fields;
+	}
+	
+	
+	/**
+	 */
+	public function setup() : void
+	{
+		$result = \rosavox\helpers\sqlite\query(
+			$this->path,
+			\rosavox\helpers\string_\coin(
+				'CREATE TABLE IF NOT EXISTS {{name}}(id INTEGER PRIMARY KEY AUTOINCREMENT, {{fields}});',
+				[
+					'name' => $this->name,
+					'fields' => \implode(
+						', ',
+						\array_map(
+							fn ($field) => \rosavox\helpers\string_\coin(
+								'{{name}} {{type}}{{macro_nullable}}',
+								[
+									'name' => self::field_name($field),
+									'type' => \rosavox\helpers\sqlite\map_type($field['type']),
+									'macro_nullable' => ($field['nullable'] ? '' : ' NOT NULL'),
+								]
+							),
+							$this->fields
+						)
+					),
+				]
+			),
+			[
+			]
+		);
+	}
+	
+
+	/**
+	 */
+	public function list_() : array
+	{
+		$result = \rosavox\helpers\sqlite\query(
+			$this->path,
+			\rosavox\helpers\string_\coin(
+				'SELECT id,{{fields}} FROM {{name}}',
+				[
+					'fields' => \implode(
+						', ',
+						\rosavox\helpers\list_\map(
+							$this->fields,
+							fn ($field) => self::field_name($field)
+						)
+					),
+					'name' => $this->name,
+				]
+			),
+			[
+			]
+		);
+		$entries = [];
+		while (true)
+		{
+			$row = $result['result']->fetchArray(\SQLITE3_NUM);
+			if ($row !== false)
+			{
+				\array_push(
+					$entries,
+					[
+						'id' => $row[0],
+						'value' => \array_slice($row, 1),
+					]
+				);
+			}
+			else
+			{
+				break;
+			}
+		}
+		return $entries;
+	}
+	
+	
+	/**
+	 */
+	public function read($id)
+	{
+		$result = \rosavox\helpers\sqlite\query(
+			$this->path,
+			\rosavox\helpers\string_\coin(
+				'SELECT {{fields}} FROM {{name}} WHERE (id = {{id}});',
+				[
+					'fields' => \implode(
+						', ',
+						\rosavox\helpers\list_\map(
+							$this->fields,
+							fn ($field) => self::field_name($field)
+						)
+					),
+					'name' => $this->name,
+					'id' => \rosavox\helpers\sqlite\placeholder('id'),
+				]
+			),
+			[
+				'id' => $id,
+			]
+		);
+		$rows = [];
+		while (true)
+		{
+			$row = $result['result']->fetchArray(\SQLITE3_NUM);
+			if ($row !== false)
+			{
+				\array_push($rows, $row);
+			}
+			else
+			{
+				break;
+			}
+		}
+		$count = \count($rows);
+		if ($count === 0)
+		{
+			throw (new \Exception('not found'));
+		}
+		else
+		{
+			if ($count > 1)
+			{
+				throw (new \Exception('ambiguous'));
+			}
+			else
+			{
+				return $rows[0];
+			}
+		}
+	}
+	
+	
+	/**
+	 */
+	public function create($row)
+	{
+		$result = \rosavox\helpers\sqlite\query(
+			$this->path,
+			\rosavox\helpers\string_\coin(
+				'INSERT INTO {{name}}({{schema}}) VALUES ({{values}});',
+				[
+					'name' => $this->name,
+					'schema' => \implode(
+						', ',
+						\array_map(
+							fn ($field) => self::field_name($field),
+							$this->fields
+						)
+					),
+					'values' => \implode(
+						', ',
+						\array_map(
+							fn ($field) => \rosavox\helpers\sqlite\placeholder(
+								self::field_name($field)
+							),
+							$this->fields
+						)
+					),
+				]
+			),
+			\rosavox\helpers\list_\to_map(
+				\rosavox\helpers\list_\map(
+					\rosavox\helpers\list_\sequence(
+						\count($this->fields)
+					),
+					fn ($index) => [
+						'key' => self::field_name($this->fields[$index]),
+						'value' => $row[$index],
+					]
+				)
+			)
+		);
+		return $result['last_insert_id'];
+	}
+	
+	
+	/**
+	 */
+	public function update($id, $row) : void
+	{
+		$result = \rosavox\helpers\sqlite\query(
+			$this->path,
+			\rosavox\helpers\string_\coin(
+				'UPDATE {{name}} SET {{sets}} WHERE (id = :id);',
+				[
+					'name' => $this->name,
+					'sets' => \implode(
+						', ',
+						\array_map(
+							fn ($field) => \rosavox\helpers\string_\coin(
+								'{{name}} = {{placeholder}}',
+								[
+									'name' => self::field_name($field),
+									'placeholder' => \rosavox\helpers\sqlite\placeholder(self::field_name($field)),
+								]
+							),
+							$this->fields
+						)
+					),
+				]
+			),
+			\array_merge(
+				[
+					'id' => $id,
+				],
+				\rosavox\helpers\list_\to_map(
+					\rosavox\helpers\list_\map(
+						\rosavox\helpers\list_\sequence(
+							\count($this->fields)
+						),
+						fn ($index) => [
+							'key' => self::field_name($this->fields[$index]),
+							'value' => $row[$index],
+						]
+					)
+				)
+			)
+		);
+	}
+	
+	
+	/**
+	 */
+	public function delete($id) : void
+	{
+		$result = \rosavox\helpers\sqlite\query(
+			$this->path,
+			\rosavox\helpers\string_\coin(
+				'DELETE * FROM {{name}} WHERE (id = {{id}});',
+				[
+					'name' => $this->name,
+					'id' => \rosavox\helpers\sqlite\placeholder('id'),
+				]
+			),
+			[
+				'id' => $id,
+			]
+		);
+	}
+	
+}
+
+ ?>
diff --git a/source/index.html.php b/source/index.html.php
index 30b4fbb..e95c55e 100644
--- a/source/index.html.php
+++ b/source/index.html.php
@@ -1,208 +1,5 @@
 <?php
-
-require_once('helpers/string.php');
-require_once('helpers/misc.php');
-require_once('services/doc.php');
-
-
-\rosavox\services\doc\init();
-
-$mode = ($_GET['mode'] ?? 'list');
-$id_encoded = (! empty($_GET['id']) ? $_GET['id'] : null);
-$id = (($id_encoded === null) ? null : \intval($id_encoded));
-
-
-/**
- */
-function make_link(string $mode, array $args) : string
-{
-	$a = \array_merge($args, ['mode' => $mode]);
-	return (
-		'?'
-		.
-		\implode(
-			'&',
-			\array_map(
-				fn ($key) => \rosavox\helpers\string_\coin(
-					'{{key}}={{value}}',
-					[
-						'key' => $key,
-						'value' => $a[$key],
-					]
-				),
-				\array_keys($a)
-			)
-		)
-	);
-}
-
-
-/**
- */
-function nav(string $mode, array $args) : void
-{
-	\rosavox\helpers\misc\navigate(make_link($mode, $args));
-}
-
-
-/**
- */
-function render_list() : string
-{
-	return \rosavox\helpers\misc\render(
-		'docs-list',
-		[
-			'label_make' => \rosavox\helpers\misc\translate('action.make'),
-			'link_make' => make_link('make', []),
-			'entries' => \implode(
-				"\n",
-				\array_map(
-					fn ($entry) => \rosavox\helpers\misc\render(
-						'docs-list-entry',
-						[
-							'label_read' => \rosavox\helpers\misc\translate('action.read'),
-							'value_text' => $entry['value']['title'],
-							'value_link_open' => make_link('edit', ['id' => \sprintf('%u', $entry['id'])]),
-							'value_link_read' => \rosavox\services\doc\readable_path($entry['id']),
-							'area_download_readable' => (
-								(fn ($name, $path) => (
-									(! \file_exists($path))
-									?
-									\rosavox\helpers\misc\render(
-										'state-waiting',
-										[
-											'info' => \rosavox\helpers\misc\translate('state.generating'),
-										]
-									)
-									:
-									\rosavox\helpers\misc\render(
-										'download',
-										[
-											'text' => \rosavox\helpers\misc\translate('item.readable.short'),
-											'tooltip' => \rosavox\helpers\string_\coin(
-												'{{item}} {{action}}',
-												[
-													'action' => \rosavox\helpers\misc\translate('action.download'),
-													'item' => \rosavox\helpers\misc\translate('item.readable.long'),
-												]
-											),
-											'link' => $path,
-											'name' => \rosavox\helpers\string_\coin(
-												'{{name}}.md',
-												[
-													'name' => $name,
-												]
-											),
-											'type' => 'text/markdown',
-										]
-									)
-								)) (
-									\rosavox\services\doc\name($entry['id']),
-									\rosavox\services\doc\readable_path($entry['id'])
-								)
-							),
-							'area_download_audible' => (
-								(fn ($name, $path) => (
-									(! \file_exists($path))
-									?
-									\rosavox\helpers\misc\render(
-										'state-waiting',
-										[
-											'info' => \rosavox\helpers\misc\translate('state.generating'),
-										]
-									)
-									:
-									\rosavox\helpers\misc\render(
-										'download',
-										[
-											'text' => \rosavox\helpers\misc\translate('item.audible.short'),
-											'tooltip' => \rosavox\helpers\string_\coin(
-												'{{item}} {{action}}',
-												[
-													'action' => \rosavox\helpers\misc\translate('action.download'),
-													'item' => \rosavox\helpers\misc\translate('item.audible.long'),
-												]
-											),
-											'link' => $path,
-											'name' => \rosavox\helpers\string_\coin(
-												'{{name}}.oga',
-												[
-													'name' => $name,
-												]
-											),
-											'type' => 'audio/ogg',
-										]
-									)
-								)) (
-									\rosavox\services\doc\name($entry['id']),
-									\rosavox\services\doc\audible_path($entry['id'])
-								)
-							),
-							'area_hear' => (
-								(fn ($name, $path) => (
-									(! \file_exists($path))
-									?
-									\rosavox\helpers\misc\render(
-										'state-waiting',
-										[
-											'info' => \rosavox\helpers\misc\translate('state.generating'),
-										]
-									)
-									:
-									\rosavox\helpers\misc\render(
-										'player',
-										[
-											'source_path' => $path,
-										]
-									)
-								)) (
-									\rosavox\services\doc\name($entry['id']),
-									\rosavox\services\doc\audible_path($entry['id'])
-								)
-							),
-						]
-					),
-					\rosavox\services\doc\list_()
-				)
-			),
-		]
-	);
-}
-
-
-/**
- */
-function render_edit(?int $id) : string
-{
-	$doc = (
-		($id === null)
-		?
-		\rosavox\services\doc\empty_()
-		:
-		\rosavox\services\doc\read($id)
-	);
-	return \rosavox\helpers\misc\render(
-		'docs-edit',
-		[
-			'label_action_back' => \rosavox\helpers\misc\translate('action.back'),
-			'label_action_save' => \rosavox\helpers\misc\translate('action.save'),
-			'label_action_delete' => \rosavox\helpers\misc\translate('action.delete'),
-			'label_doc_title' => \rosavox\helpers\misc\translate('domain.doc.title'),
-			'label_doc_authors' => \rosavox\helpers\misc\translate('domain.doc.authors'),
-			'label_doc_content' => \rosavox\helpers\misc\translate('domain.doc.content'),
-			'label_doc_reasoning' => \rosavox\helpers\misc\translate('domain.doc.reasoning'),
-			'value_action_back' => make_link('list', []),
-			'value_action_save' => make_link('save', (($id === null) ? [] : ['id' => \strval($id)])),
-			'value_action_delete' => make_link('delete', (($id === null) ? [] : ['id' => \strval($id)])),
-			'value_doc_title' => $doc['title'],
-			'value_doc_authors' => \implode(', ', $doc['authors']),
-			'value_doc_content' => $doc['content'],
-			'value_doc_reasoning' => ($doc['reasoning'] ?? ''),
-		]
-	);
-}
-
-
+require_once('main.php');
  ?>
 <!DOCTYPE html>
 <html>
@@ -213,63 +10,6 @@ function render_edit(?int $id) : string
 	</head>
 	<body>
 		<h1>rosavox</h1>
-<?php
-	switch ($mode)
-	{
-		case 'delete':
-		{
-			if ($id === null)
-			{
-				// do nothing
-			}
-			else
-			{
-				\rosavox\services\doc\delete($id);
-			}
-			nav('list', []);
-			break;
-		}
-		case 'save':
-		{
-			$doc = [
-				'title' => $_POST['title'],
-				'authors' => \explode(',', $_POST['authors']),
-				'content' => $_POST['content'],
-				'reasoning' => (empty($_POST['reasoning']) ? null : $_GET['reasoning']),
-			];
-			if ($id === null)
-			{
-				$id = \rosavox\services\doc\create($doc);
-			}
-			else
-			{
-				\rosavox\services\doc\update($id, $doc);
-			}
-			// nav('edit', ['id' => \rosavox\services\doc\id_encode($id)]);
-			nav('list', []);
-			break;
-		}
-		case 'list':
-		{
-			echo(render_list());
-			break;
-		}
-		case 'make':
-		{
-			echo(render_edit(null));
-			break;
-		}
-		case 'edit':
-		{
-			echo(render_edit($id));
-			break;
-		}
-		default:
-		{
-			throw (new \Exception(\sprintf('invalid mode: %s', $mode)));
-			break;
-		}
-	}
- ?>
+<?php \rosavox\main($_GET, $_POST); ?>
 	</body>
 </html>
diff --git a/source/main.php b/source/main.php
new file mode 100644
index 0000000..a8f1174
--- /dev/null
+++ b/source/main.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace rosavox;
+
+require_once('entities/doc.php');
+require_once('services/doc.php');
+require_once('nav.php');
+require_once('renderings.php');
+
+
+/**
+ */
+function main(array $get, array $post) : void
+{
+	// init
+	\rosavox\services\doc\init();
+
+	// args
+	$mode = (
+		$get['mode']
+		??
+		'list'
+	);
+	$id = (
+		(! empty($get['id']))
+		?
+		\intval($get['id'])
+		:
+		null
+	);
+	
+	// exec
+	switch ($mode)
+	{
+		case 'delete':
+		{
+			if ($id === null)
+			{
+				// do nothing
+			}
+			else
+			{
+				\rosavox\services\doc\remove($id);
+			}
+			nav('list', []);
+			break;
+		}
+		case 'save':
+		{
+			$doc = new \rosavox\entities\doc\entity(
+				$post['title'],
+				\explode(',', $post['authors']),
+				$post['content'],
+				(empty($post['reasoning']) ? null : $post['reasoning'])
+			);
+			if ($id === null)
+			{
+				$id = \rosavox\services\doc\add($doc);
+			}
+			else
+			{
+				\rosavox\services\doc\change($id, $doc);
+			}
+			// \rosavox\nav('edit', ['id' => \strval($id)]);
+			\rosavox\nav('list', []);
+			break;
+		}
+		case 'list':
+		{
+			echo(\rosavox\renderings\doc_list());
+			break;
+		}
+		case 'make':
+		{
+			echo(\rosavox\renderings\doc_edit(null));
+			break;
+		}
+		case 'edit':
+		{
+			echo(\rosavox\renderings\doc_edit($id));
+			break;
+		}
+		default:
+		{
+			throw (new \Exception(\sprintf('invalid mode: %s', $mode)));
+			break;
+		}
+	}
+}
+ ?>
diff --git a/source/nav.php b/source/nav.php
new file mode 100644
index 0000000..8116118
--- /dev/null
+++ b/source/nav.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace rosavox;
+
+require_once('helpers/list.php');
+require_once('helpers/string.php');
+require_once('helpers/misc.php');
+
+
+/**
+ */
+function make_link(string $mode, array $args) : string
+{
+	$a = \array_merge($args, ['mode' => $mode]);
+	return (
+		'?'
+		.
+		\implode(
+			'&',
+			\rosavox\helpers\list_\map(
+				\array_keys($a),
+				fn ($key) => \rosavox\helpers\string_\coin(
+					'{{key}}={{value}}',
+					[
+						'key' => $key,
+						'value' => $a[$key],
+					]
+				)
+			)
+		)
+	);
+}
+
+
+/**
+ */
+function nav(string $mode, array $args) : void
+{
+	\rosavox\helpers\misc\navigate(make_link($mode, $args));
+}
+
+ ?>
diff --git a/source/renderings.php b/source/renderings.php
new file mode 100644
index 0000000..450d88c
--- /dev/null
+++ b/source/renderings.php
@@ -0,0 +1,170 @@
+<?php
+
+namespace rosavox\renderings;
+
+require_once('helpers/list.php');
+require_once('helpers/string.php');
+require_once('helpers/misc.php');
+require_once('entities/doc.php');
+require_once('services/doc.php');
+require_once('nav.php');
+
+
+/**
+ */
+function doc_list() : string
+{
+	return \rosavox\helpers\misc\render(
+		'docs-list',
+		[
+			'label_make' => \rosavox\helpers\misc\translate('action.make'),
+			'link_make' => \rosavox\make_link('make', []),
+			'entries' => \implode(
+				"\n",
+				\rosavox\helpers\list_\map(
+					\rosavox\services\doc\dump(),
+					fn ($entry) => \rosavox\helpers\misc\render(
+						'docs-list-entry',
+						[
+							'label_read' => \rosavox\helpers\misc\translate('action.read'),
+							'value_text' => $entry['value']->title,
+							'value_link_open' => \rosavox\make_link('edit', ['id' => \sprintf('%u', $entry['id'])]),
+							'value_link_read' => \rosavox\services\doc\readable_path($entry['id']),
+							'area_download_readable' => (
+								(fn ($name, $path) => (
+									(! \file_exists($path))
+									?
+									\rosavox\helpers\misc\render(
+										'state-waiting',
+										[
+											'info' => \rosavox\helpers\misc\translate('state.generating'),
+										]
+									)
+									:
+									\rosavox\helpers\misc\render(
+										'download',
+										[
+											'text' => \rosavox\helpers\misc\translate('item.readable.short'),
+											'tooltip' => \rosavox\helpers\string_\coin(
+												'{{item}} {{action}}',
+												[
+													'action' => \rosavox\helpers\misc\translate('action.download'),
+													'item' => \rosavox\helpers\misc\translate('item.readable.long'),
+												]
+											),
+											'link' => $path,
+											'name' => \rosavox\helpers\string_\coin(
+												'{{name}}.md',
+												[
+													'name' => $name,
+												]
+											),
+											'type' => 'text/markdown',
+										]
+									)
+								)) (
+									\rosavox\services\doc\name($entry['id']),
+									\rosavox\services\doc\readable_path($entry['id'])
+								)
+							),
+							'area_download_audible' => (
+								(fn ($name, $path) => (
+									(! \file_exists($path))
+									?
+									\rosavox\helpers\misc\render(
+										'state-waiting',
+										[
+											'info' => \rosavox\helpers\misc\translate('state.generating'),
+										]
+									)
+									:
+									\rosavox\helpers\misc\render(
+										'download',
+										[
+											'text' => \rosavox\helpers\misc\translate('item.audible.short'),
+											'tooltip' => \rosavox\helpers\string_\coin(
+												'{{item}} {{action}}',
+												[
+													'action' => \rosavox\helpers\misc\translate('action.download'),
+													'item' => \rosavox\helpers\misc\translate('item.audible.long'),
+												]
+											),
+											'link' => $path,
+											'name' => \rosavox\helpers\string_\coin(
+												'{{name}}.oga',
+												[
+													'name' => $name,
+												]
+											),
+											'type' => 'audio/ogg',
+										]
+									)
+								)) (
+									\rosavox\services\doc\name($entry['id']),
+									\rosavox\services\doc\audible_path($entry['id'])
+								)
+							),
+							'area_hear' => (
+								(fn ($name, $path) => (
+									(! \file_exists($path))
+									?
+									\rosavox\helpers\misc\render(
+										'state-waiting',
+										[
+											'info' => \rosavox\helpers\misc\translate('state.generating'),
+										]
+									)
+									:
+									\rosavox\helpers\misc\render(
+										'player',
+										[
+											'source_path' => $path,
+										]
+									)
+								)) (
+									\rosavox\services\doc\name($entry['id']),
+									\rosavox\services\doc\audible_path($entry['id'])
+								)
+							),
+						]
+					)
+				)
+			),
+		]
+	);
+}
+
+
+/**
+ */
+function doc_edit(?int $id) : string
+{
+	$doc = (
+		($id === null)
+		?
+		\rosavox\entities\doc\empty_()
+		:
+		\rosavox\services\doc\get($id)
+	);
+	return \rosavox\helpers\misc\render(
+		'docs-edit',
+		[
+			'label_action_back' => \rosavox\helpers\misc\translate('action.back'),
+			'label_action_save' => \rosavox\helpers\misc\translate('action.save'),
+			'label_action_delete' => \rosavox\helpers\misc\translate('action.delete'),
+			'label_doc_title' => \rosavox\helpers\misc\translate('domain.doc.title'),
+			'label_doc_authors' => \rosavox\helpers\misc\translate('domain.doc.authors'),
+			'label_doc_content' => \rosavox\helpers\misc\translate('domain.doc.content'),
+			'label_doc_reasoning' => \rosavox\helpers\misc\translate('domain.doc.reasoning'),
+			'value_action_back' => \rosavox\make_link('list', []),
+			'value_action_save' => \rosavox\make_link('save', (($id === null) ? [] : ['id' => \strval($id)])),
+			'value_action_delete' => \rosavox\make_link('delete', (($id === null) ? [] : ['id' => \strval($id)])),
+			'value_doc_title' => $doc->title,
+			'value_doc_authors' => \implode(', ', $doc->authors),
+			'value_doc_content' => $doc->content,
+			'value_doc_reasoning' => ($doc->reasoning ?? ''),
+		]
+	);
+}
+
+ ?>
diff --git a/source/repositories/doc.php b/source/repositories/doc.php
new file mode 100644
index 0000000..efee76b
--- /dev/null
+++ b/source/repositories/doc.php
@@ -0,0 +1,164 @@
+<?php
+
+namespace rosavox\repositories\doc;
+
+require_once('helpers/storage-interface.php');
+require_once('helpers/storage-jsonfile.php');
+require_once('helpers/storage-sqlitetable.php');
+
+require_once('entities/doc.php');
+
+
+/**
+ */
+class repo implements \rosavox\helpers\storage\interface_/*<int,\rosavox\entities\doc\entity>*/
+{
+	
+	/**
+	 */
+	private \rosavox\helpers\storage\interface_ $core;
+	
+	
+	/**
+	 */
+	private function __construct()
+	{
+		/*
+		$this->core = new \rosavox\helpers\storage\class_jsonfile(
+			'docs.json',
+			fn ($id) => \sprintf('%u', $id),
+			fn ($id_encoded) => \intval($id_encoded)
+		);
+		 */
+		$this->core = new \rosavox\helpers\storage\class_sqlitetable(
+			'data.sqlite',
+			'docs',
+			[
+				[
+					'name' => 'title',
+					'type' => 'string',
+					'nullable' => false,
+				],
+				[
+					'name' => 'authors',
+					'type' => 'string',
+					'nullable' => false,
+				],
+				[
+					'name' => 'content',
+					'type' => 'string',
+					'nullable' => false,
+				],
+				[
+					'name' => 'reasoning',
+					'type' => 'string',
+					'nullable' => true,
+				],
+			]
+		);
+	}
+	
+	
+	/**
+	 */
+	private static ?repo $instance = null;
+	
+	
+	/**
+	 */
+	public static function get_instance()
+	{
+		if (self::$instance === null)
+		{
+			self::$instance = new self();
+		}
+		return self::$instance;
+	}
+	
+	
+	/**
+	 */
+	private static function encode(\rosavox\entities\doc\entity $doc) : array
+	{
+		return [
+			$doc->title,
+			\implode(',', $doc->authors),
+			$doc->content,
+			$doc->reasoning,
+		];
+	}
+
+
+	/**
+	 */
+	private static function decode(array $row) : \rosavox\entities\doc\entity
+	{
+		return (new \rosavox\entities\doc\entity(
+			$row[0],
+			\explode(',', $row[1]),
+			$row[2],
+			$row[3],
+		));
+	}
+	
+	
+	/**
+	 * [implementation]
+	 */
+	public function setup() : void
+	{
+		$this->core->setup();
+	}
+	
+	
+	/**
+	 * [implementation]
+	 */
+	public function list_() : array
+	{
+		return \rosavox\helpers\list_\map(
+			$this->core->list_(),
+			fn ($entry) => [
+				'id' => $entry['id'],
+				'value' => self::decode($entry['value']),
+			]
+		);
+	}
+	
+	
+	/**
+	 * [implementation]
+	 */
+	public function read($id)
+	{
+		return self::decode($this->core->read($id));
+	}
+	
+	
+	/**
+	 * [implementation]
+	 */
+	public function create($doc)
+	{
+		return $this->core->create(self::encode($doc));
+	}
+	
+	
+	/**
+	 * [implementation]
+	 */
+	public function update($id, $doc) : void
+	{
+		$this->core->update($id, self::encode($doc));
+	}
+	
+	
+	/**
+	 * [implementation]
+	 */
+	public function delete($id) : void
+	{
+		$this->core->delete($id);
+	}
+	
+}
diff --git a/source/services/doc.php b/source/services/doc.php
index 04a4a06..56cb92e 100644
--- a/source/services/doc.php
+++ b/source/services/doc.php
@@ -3,16 +3,10 @@
 namespace rosavox\services\doc;
 
 require_once('helpers/string.php');
-require_once('helpers/storage.php');
 require_once('helpers/misc.php');
 
-
-/**
- */
-class state
-{
-	public static ?\rosavox\helpers\storage\interface_ $storage = null;
-}
+require_once('entities/doc.php');
+require_once('repositories/doc.php');
 
 
 /**
@@ -41,7 +35,7 @@ function audible_path(int $id) : string
 
 /**
  */
-function generate_readable(int $id, $doc) : void
+function generate_readable(int $id, \rosavox\entities\doc\entity $doc) : void
 {
 	$markdown = \rosavox\helpers\string_\coin(
 		"# {{value_title}}
@@ -58,7 +52,7 @@ function generate_readable(int $id, $doc) : void
 {{macro_reasoning}}",
 		[
 			'label_title' => \rosavox\helpers\misc\translate('domain.doc.title'),
-			'value_title' => $doc['title'],
+			'value_title' => $doc->title,
 			'label_authors' => \rosavox\helpers\misc\translate('domain.doc.authors'),
 			'value_authors' => \implode(
 				"\n",
@@ -69,13 +63,13 @@ function generate_readable(int $id, $doc) : void
 							'author' => $author,
 						]
 					),
-					$doc['authors']
+					$doc->authors
 				)
 			),
 			'label_content' => \rosavox\helpers\misc\translate('domain.doc.content'),
-			'value_content' => $doc['content'],
+			'value_content' => $doc->content,
 			'macro_reasoning' => (
-				($doc['reasoning'] === null)
+				($doc->reasoning === null)
 				?
 				''
 				:
@@ -86,7 +80,7 @@ function generate_readable(int $id, $doc) : void
 {{value_reasoning}}",
 					[
 						'label_reasoning' => \rosavox\helpers\misc\translate('domain.doc.reasoning'),
-						'value_reasoning' => $doc['reasoning'],
+						'value_reasoning' => $doc->reasoning,
 					]
 				)
 			)
@@ -101,9 +95,7 @@ function generate_readable(int $id, $doc) : void
 
 /**
  */
-function remove_readable(
-	int $id
-) : void
+function remove_readable(int $id) : void
 {
 	$path = readable_path($id);
 	if (! \file_exists($path))
@@ -119,10 +111,7 @@ function remove_readable(
 
 /**
  */
-function generate_audible(
-	int $id,
-	$doc
-) : void
+function generate_audible(int $id, \rosavox\entities\doc\entity $doc) : void
 {
 	$pause = " .\n";
 	$text = \rosavox\helpers\string_\coin(
@@ -130,13 +119,13 @@ function generate_audible(
 		[
 			'pause' => $pause,
 			'label_title' => \rosavox\helpers\misc\translate('domain.doc.title'),
-			'value_title' => $doc['title'],
+			'value_title' => $doc->title,
 			'label_authors' => \rosavox\helpers\misc\translate('domain.doc.authors'),
-			'value_authors' => \implode($pause, $doc['authors']),
+			'value_authors' => \implode($pause, $doc->authors),
 			'label_content' => \rosavox\helpers\misc\translate('domain.doc.content'),
-			'value_content' => $doc['content'],
+			'value_content' => $doc->content,
 			'macro_reasoning' => (
-				($doc['reasoning'] === null)
+				($doc->reasoning === null)
 				?
 				''
 				:
@@ -145,7 +134,7 @@ function generate_audible(
 					[
 						'pause' => $pause,
 						'label_reasoning' => \rosavox\helpers\misc\translate('domain.doc.reasoning'),
-						'value_reasoning' => $doc['reasoning'],
+						'value_reasoning' => $doc->reasoning,
 					]
 				)
 			)
@@ -163,9 +152,7 @@ function generate_audible(
 
 /**
  */
-function remove_audible(
-	int $id
-) : void
+function remove_audible(int $id) : void
 {
 	$path = audible_path($id);
 	if (! \file_exists($path))
@@ -179,41 +166,28 @@ function remove_audible(
 }
 
 
+
 /**
  */
-function empty_() : array
+function dump() : array
 {
-	return [
-		'title' => '',
-		'authors' => [],
-		'content' => '',
-		'reasoning' => null,
-	];
+	return \rosavox\repositories\doc\repo::get_instance()->list_();
 }
 
 
 /**
  */
-function list_() : array
+function get(int $id) : \rosavox\entities\doc\entity
 {
-	return state::$storage->list_();
+	return \rosavox\repositories\doc\repo::get_instance()->read($id);
 }
 
 
 /**
  */
-function read(int $id) : array
+function add(\rosavox\entities\doc\entity $doc) : int
 {
-	return state::$storage->read($id);
-}
-
-
-/**
- * @todo async generating
- */
-function create(array $doc) : int
-{
-	$id = state::$storage->create($doc);
+	$id = \rosavox\repositories\doc\repo::get_instance()->create($doc);
 	generate_readable($id, $doc);
 	generate_audible($id, $doc);
 	return $id;
@@ -222,9 +196,40 @@ function create(array $doc) : int
 
 /**
  */
-function update(int $id, array $doc) : void
+function add_examples() : void
 {
-	state::$storage->update($id, $doc);
+	$entities = [
+		new \rosavox\entities\doc\entity(
+			'Freibier bei Parteitagen',
+			[
+				'Björn Biernot',
+				'Doreen Dauerdurst',
+			],
+			'Der Landesverband möge beschließen, dass zu Beginn eines jeden Parteitags für jeden Deligierten mindestens zwei Flaschen Bier auf den zugehörigen Platz zu stellen sind.',
+			'Wir haben Durst!',
+		),
+		new \rosavox\entities\doc\entity(
+			'Götterdämmerung',
+			[
+				'Fenriswolf',
+			],
+			'Der Allvater hat mich betrogen. Ich werde ihn und seine elende Asenbrut verschlingen. Diese Welt wird enden.',
+			null,
+		),
+	];
+	foreach ($entities as $entity)
+	{
+		add($entity);
+	}
+}
+
+
+
+/**
+ */
+function change(int $id, \rosavox\entities\doc\entity $doc) : void
+{
+	\rosavox\repositories\doc\repo::get_instance()->update($id, $doc);
 	remove_readable($id);
 	remove_audible($id);
 	generate_readable($id, $doc);
@@ -234,52 +239,21 @@ function update(int $id, array $doc) : void
 
 /**
  */
-function delete(int $id) : void
+function remove(int $id) : void
 {
-	state::$storage->delete($id);
+	\rosavox\repositories\doc\repo::get_instance()->delete($id);
 	remove_readable($id);
 	remove_audible($id);
 }
 
 
-/**
- */
-function add_examples() : void
-{
-	create(
-		[
-			'title' => 'Freibier bei Parteitagen',
-			'authors' => [
-				'Björn Biernot',
-				'Doreen Dauerdurst',
-			],
-			'content' => 'Der Landesverband möge beschließen, dass zu Beginn eines jeden Parteitags für jeden Deligierten mindestens zwei Flaschen Bier auf den zugehörigen Platz zu stellen sind.',
-			'reasoning' => 'Wir haben Durst!',
-		]
-	);
-	create(
-		[
-			'title' => 'Götterdämmerung',
-			'authors' => [
-				'Fenriswolf',
-			],
-			'content' => 'Der Allvater hat mich betrogen. Ich werde ihn und seine elende Asenbrut verschlingen. Diese Welt wird enden.',
-			'reasoning' => null,
-		]
-	);
-}
-
-
 /**
  */
 function init() : void
 {
-	state::$storage = new \rosavox\helpers\storage\class_jsonfile(
-		'docs.json',
-		fn ($id) => \sprintf('%u', $id),
-		fn ($id_encoded) => \intval($id_encoded)
-	);
-	if (empty(state::$storage->list_()))
+	\rosavox\repositories\doc\repo::get_instance()->setup();
+	
+	if (empty(dump()))
 	{
 		add_examples();
 	}
diff --git a/source/style.css b/source/style.css
index b6f95a0..ff5ce72 100644
--- a/source/style.css
+++ b/source/style.css
@@ -82,16 +82,6 @@ button
 	font-size: 1.0em;
 }
 
-.docs-list-entry
-{
-	margin-bottom: 16px;
-}
-
-.docs-list-entry > *
-{
-	vertical-align: middle;
-}
-
 .state-waiting
 {
 	cursor: progress;
@@ -101,3 +91,37 @@ button
 {
 	content: "\21A7 ";
 }
+
+.docs-list > ul
+{
+	padding: 0;
+	margin: 0 0 0 16px;
+}
+
+.docs-list-entry
+{
+	padding-top: 24px;
+	padding-bottom: 24px;
+	list-style-type: none;
+	
+}
+
+.docs-list-entry:not(:first-child)
+{
+	border-top: 2px solid hsl(var(--hue), 0%, 50%);
+}
+
+.docs-list-entry-main
+{
+}
+
+.docs-list-entry-actions
+{
+	margin-top: 8px;
+	display: block;
+}
+
+.docs-list-entry-actions > *
+{
+	vertical-align: middle;
+}
diff --git a/source/templates/docs-edit.html.tpl b/source/templates/docs-edit.html.tpl
index b28a95b..bca03b3 100644
--- a/source/templates/docs-edit.html.tpl
+++ b/source/templates/docs-edit.html.tpl
@@ -1,4 +1,4 @@
-<div id="docs-edit">
+<div class="docs-edit">
 	<form method="POST">
 		<label>
 			<span>{{label_doc_title}}</span>
diff --git a/source/templates/docs-list-entry.html.tpl b/source/templates/docs-list-entry.html.tpl
index 3c8db3a..fb4e0b5 100644
--- a/source/templates/docs-list-entry.html.tpl
+++ b/source/templates/docs-list-entry.html.tpl
@@ -1,9 +1,12 @@
 <li class="docs-list-entry">
-	<a href="{{value_link_open}}">{{value_text}}</a>
-	|
-	{{area_download_readable}}
-	|
-	{{area_download_audible}}
-	|
-	{{area_hear}}
+	<div class="docs-list-entry-main">
+		<a href="{{value_link_open}}">{{value_text}}</a>
+	</div>
+	<div class="docs-list-entry-actions">
+		{{area_download_readable}}
+		|
+		{{area_download_audible}}
+		|
+		{{area_hear}}
+	</div>
 </li>
diff --git a/source/templates/docs-list.html.tpl b/source/templates/docs-list.html.tpl
index 8a3b60b..70699d4 100644
--- a/source/templates/docs-list.html.tpl
+++ b/source/templates/docs-list.html.tpl
@@ -1,4 +1,4 @@
-<div id="docs-list">
+<div class="docs-list">
 	<ul>
 {{entries}}
 	</ul>