diff --git a/db/schema.sql b/db/schema.sql
deleted file mode 100644
index 54a1766..0000000
--- a/db/schema.sql
+++ /dev/null
@@ -1,26 +0,0 @@
-CREATE TABLE IF NOT EXISTS conversion_jobs (
-  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
-  uuid CHAR(36) NOT NULL,
-  status ENUM('pending', 'processing', 'done', 'failed') NOT NULL DEFAULT 'pending',
-  family VARCHAR(32) NOT NULL,
-  source_format VARCHAR(16) NOT NULL,
-  target_format VARCHAR(16) NOT NULL,
-  original_filename VARCHAR(255) NOT NULL,
-  input_path VARCHAR(255) NOT NULL,
-  output_path VARCHAR(255) NULL,
-  input_mime_type VARCHAR(128) NOT NULL,
-  output_mime_type VARCHAR(128) NULL,
-  input_size_bytes INT UNSIGNED NOT NULL,
-  output_size_bytes INT UNSIGNED NULL,
-  quality SMALLINT UNSIGNED NULL,
-  conversion_duration_seconds DECIMAL(10,3) NULL,
-  error_message VARCHAR(255) NULL,
-  error_log TEXT NULL,
-  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
-  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-  expires_at DATETIME NOT NULL,
-  cleaned_at DATETIME NULL DEFAULT NULL,
-  UNIQUE KEY uniq_uuid (uuid),
-  INDEX idx_status (status),
-  INDEX idx_expires_at (expires_at)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/package-lock.json b/package-lock.json
index 78e2ffa..8f6b7a7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,6 @@
         "express-rate-limit": "^8.6.1",
         "file-type": "^22.0.1",
         "mammoth": "^1.12.0",
-        "mariadb": "^3.5.3",
         "multer": "^2.2.0",
         "pdf-lib": "^1.17.1",
         "pdfjs-dist": "^6.2.108",
@@ -1549,12 +1548,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/@types/geojson": {
-      "version": "7946.0.16",
-      "resolved": "https://registry.npmjs.org/@types/geojson/-/geojson-7946.0.16.tgz",
-      "integrity": "sha512-6C8nqWur3j98U6+lXDfTUWIfgvZU+EumvpHKcYjujKH7woYyLj2sUmff0tRhrqM7BohUw7Pz3ZB1jj2gW9Fvmg==",
-      "license": "MIT"
-    },
     "node_modules/@types/node": {
       "version": "25.9.5",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.5.tgz",
@@ -2423,15 +2416,6 @@
         "node": ">=0.4.0"
       }
     },
-    "node_modules/denque": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/denque/-/denque-2.1.0.tgz",
-      "integrity": "sha512-HVQE3AAb/pxF8fQAoiqpvg9i3evqug3hoiwakOyZAwJm+6vZehbkYXZ0l4JxS+I3QxM97v5aaRNhj8v5oBhekw==",
-      "license": "Apache-2.0",
-      "engines": {
-        "node": ">=0.10"
-      }
-    },
     "node_modules/depd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
@@ -3697,15 +3681,6 @@
         "underscore": "^1.13.1"
       }
     },
-    "node_modules/lru-cache": {
-      "version": "11.5.2",
-      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.5.2.tgz",
-      "integrity": "sha512-4pfM1Ff0x50o0tQwb5ucw/RzNyD0/YJME6IVcStalZuMWxdt3sR3huStTtxz4PUmvZfRguvDejasvQ2kifR11g==",
-      "license": "BlueOak-1.0.0",
-      "engines": {
-        "node": "20 || >=22"
-      }
-    },
     "node_modules/magic-string": {
       "version": "0.30.21",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz",
@@ -3740,22 +3715,6 @@
         "node": ">=12.0.0"
       }
     },
-    "node_modules/mariadb": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/mariadb/-/mariadb-3.5.3.tgz",
-      "integrity": "sha512-i053Kc0MgdUv/hu9mCyq67TYfPXFj3/MV8I7ZW5wvJNixIyXC0VztMPUjIVj/449nQo+BsxFD4Fdk/sA/uqKPQ==",
-      "license": "LGPL-2.1-or-later",
-      "dependencies": {
-        "@types/geojson": "^7946.0.16",
-        "@types/node": ">=20",
-        "denque": "^2.1.0",
-        "iconv-lite": "^0.7.2",
-        "lru-cache": "^11.5.0"
-      },
-      "engines": {
-        "node": ">= 20.0.0"
-      }
-    },
     "node_modules/math-intrinsics": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
diff --git a/package.json b/package.json
index 39c2df6..7fc8d2a 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,6 @@
     "express-rate-limit": "^8.6.1",
     "file-type": "^22.0.1",
     "mammoth": "^1.12.0",
-    "mariadb": "^3.5.3",
     "multer": "^2.2.0",
     "pdf-lib": "^1.17.1",
     "pdfjs-dist": "^6.2.108",