diff --git a/.env.example b/.env.example
index 4a211c9..ce91c63 100644
--- a/.env.example
+++ b/.env.example
@@ -75,7 +75,7 @@ DB_LOCATION__COUNTRY=country
 
 # The name of the column that contains the postal code of each location point
 # Comment or leave empty if the postal code is not available.
-DB_LOCATION__POSTAL_CODE=postal_code
+DB_LOCATION__POSTAL_CODE=postalCode
 
 ###
 ### Frontend configuration
diff --git a/frontend/src/models/User.ts b/frontend/src/models/User.ts
index 897a791..87b1439 100644
--- a/frontend/src/models/User.ts
+++ b/frontend/src/models/User.ts
@@ -7,7 +7,6 @@ class User {
   public firstName: Optional<string>;
   public lastName: Optional<string>;
   public createdAt: Optional<Date>;
-  public updatedAt: Optional<Date>;
 
   constructor(user: {
     id: number;
@@ -16,7 +15,6 @@ class User {
     firstName?: string;
     lastName?: string;
     createdAt?: Date;
-    updatedAt?: Date;
   }) {
     this.id = user.id;
     this.username = user.username;
@@ -24,7 +22,6 @@ class User {
     this.firstName = user.firstName || null;
     this.lastName = user.lastName || null;
     this.createdAt = user.createdAt || null;
-    this.updatedAt = user.updatedAt || null;
   }
 }
 
diff --git a/frontend/src/models/UserSession.ts b/frontend/src/models/UserSession.ts
index b40f1cc..7079a77 100644
--- a/frontend/src/models/UserSession.ts
+++ b/frontend/src/models/UserSession.ts
@@ -4,20 +4,17 @@ class UserSession {
   public id: string;
   public userId: number;
   public createdAt: Date;
-  public updatedAt: Date;
   public expiresAt: Optional<Date>;
 
   constructor(userSession: {
     id: string;
     userId: number;
     createdAt: Date;
-    updatedAt: Date;
     expiresAt?: Date;
   }) {
     this.id = userSession.id;
     this.userId = userSession.userId;
     this.createdAt = userSession.createdAt;
-    this.updatedAt = userSession.updatedAt;
     this.expiresAt = userSession.expiresAt || null;
   }
 }
diff --git a/package-lock.json b/package-lock.json
index e8e29ab..43fb65c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,6 +18,7 @@
         "pg": "^8.13.3",
         "sequelize": "^6.37.5",
         "sqlite3": "^5.1.7",
+        "umzug": "^3.8.2",
         "uuid": "^11.1.0"
       },
       "devDependencies": {
@@ -36,6 +37,41 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/@nodelib/fs.scandir": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
+      "integrity": "sha512-vq24Bq3ym5HEQm2NKCr3yXDwjc7vTsEThRDnkp2DK9p1uqLR+DHurm/NOTo0KG7HYHU7eppKZj3MyqYuMBf62g==",
+      "license": "MIT",
+      "dependencies": {
+        "@nodelib/fs.stat": "2.0.5",
+        "run-parallel": "^1.1.9"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/@nodelib/fs.stat": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.5.tgz",
+      "integrity": "sha512-RkhPPp2zrqDAQA/2jNhnztcPAlv64XdhIp7a7454A5ovI7Bukxgt7MX7udwAu3zg1DcpPU0rz3VV1SeaqvY4+A==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/@nodelib/fs.walk": {
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.walk/-/fs.walk-1.2.8.tgz",
+      "integrity": "sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg==",
+      "license": "MIT",
+      "dependencies": {
+        "@nodelib/fs.scandir": "2.1.5",
+        "fastq": "^1.6.0"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/@npmcli/fs": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@npmcli/fs/-/fs-1.1.1.tgz",
@@ -62,6 +98,99 @@
         "node": ">=10"
       }
     },
+    "node_modules/@rushstack/node-core-library": {
+      "version": "5.11.0",
+      "resolved": "https://registry.npmjs.org/@rushstack/node-core-library/-/node-core-library-5.11.0.tgz",
+      "integrity": "sha512-I8+VzG9A0F3nH2rLpPd7hF8F7l5Xb7D+ldrWVZYegXM6CsKkvWc670RlgK3WX8/AseZfXA/vVrh0bpXe2Y2UDQ==",
+      "license": "MIT",
+      "dependencies": {
+        "ajv": "~8.13.0",
+        "ajv-draft-04": "~1.0.0",
+        "ajv-formats": "~3.0.1",
+        "fs-extra": "~11.3.0",
+        "import-lazy": "~4.0.0",
+        "jju": "~1.4.0",
+        "resolve": "~1.22.1",
+        "semver": "~7.5.4"
+      },
+      "peerDependencies": {
+        "@types/node": "*"
+      },
+      "peerDependenciesMeta": {
+        "@types/node": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@rushstack/node-core-library/node_modules/semver": {
+      "version": "7.5.4",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
+      "integrity": "sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==",
+      "license": "ISC",
+      "dependencies": {
+        "lru-cache": "^6.0.0"
+      },
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/@rushstack/terminal": {
+      "version": "0.15.0",
+      "resolved": "https://registry.npmjs.org/@rushstack/terminal/-/terminal-0.15.0.tgz",
+      "integrity": "sha512-vXQPRQ+vJJn4GVqxkwRe+UGgzNxdV8xuJZY2zem46Y0p3tlahucH9/hPmLGj2i9dQnUBFiRnoM9/KW7PYw8F4Q==",
+      "license": "MIT",
+      "dependencies": {
+        "@rushstack/node-core-library": "5.11.0",
+        "supports-color": "~8.1.1"
+      },
+      "peerDependencies": {
+        "@types/node": "*"
+      },
+      "peerDependenciesMeta": {
+        "@types/node": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@rushstack/terminal/node_modules/has-flag": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@rushstack/terminal/node_modules/supports-color": {
+      "version": "8.1.1",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-8.1.1.tgz",
+      "integrity": "sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==",
+      "license": "MIT",
+      "dependencies": {
+        "has-flag": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/supports-color?sponsor=1"
+      }
+    },
+    "node_modules/@rushstack/ts-command-line": {
+      "version": "4.23.5",
+      "resolved": "https://registry.npmjs.org/@rushstack/ts-command-line/-/ts-command-line-4.23.5.tgz",
+      "integrity": "sha512-jg70HfoK44KfSP3MTiL5rxsZH7X1ktX3cZs9Sl8eDu1/LxJSbPsh0MOFRC710lIuYYSgxWjI5AjbCBAl7u3RxA==",
+      "license": "MIT",
+      "dependencies": {
+        "@rushstack/terminal": "0.15.0",
+        "@types/argparse": "1.0.38",
+        "argparse": "~1.0.9",
+        "string-argv": "~0.3.1"
+      }
+    },
     "node_modules/@tootallnate/once": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.1.2.tgz",
@@ -72,6 +201,12 @@
         "node": ">= 6"
       }
     },
+    "node_modules/@types/argparse": {
+      "version": "1.0.38",
+      "resolved": "https://registry.npmjs.org/@types/argparse/-/argparse-1.0.38.tgz",
+      "integrity": "sha512-ebDJ9b0e702Yr7pWgB0jzm+CX4Srzz8RcXtLJDJB+BSccqMa36uyH/zUsSYao5+BD1ytv3k3rPYCq4mAE1hsXA==",
+      "license": "MIT"
+    },
     "node_modules/@types/body-parser": {
       "version": "1.19.5",
       "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.19.5.tgz",
@@ -306,6 +441,53 @@
         "node": ">=8"
       }
     },
+    "node_modules/ajv": {
+      "version": "8.13.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.13.0.tgz",
+      "integrity": "sha512-PRA911Blj99jR5RMeTunVbNXMF6Lp4vZXnk5GQjcnUWUTsrXtekg/pnmFFI2u/I36Y/2bITGS30GZCXei6uNkA==",
+      "license": "MIT",
+      "dependencies": {
+        "fast-deep-equal": "^3.1.3",
+        "json-schema-traverse": "^1.0.0",
+        "require-from-string": "^2.0.2",
+        "uri-js": "^4.4.1"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/epoberezkin"
+      }
+    },
+    "node_modules/ajv-draft-04": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/ajv-draft-04/-/ajv-draft-04-1.0.0.tgz",
+      "integrity": "sha512-mv00Te6nmYbRp5DCwclxtt7yV/joXJPGS7nM+97GdxvuttCOfgI3K4U25zboyeX0O+myI8ERluxQe5wljMmVIw==",
+      "license": "MIT",
+      "peerDependencies": {
+        "ajv": "^8.5.0"
+      },
+      "peerDependenciesMeta": {
+        "ajv": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/ajv-formats": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-3.0.1.tgz",
+      "integrity": "sha512-8iUql50EUR+uUcdRQ3HDqa6EVyo3docL8g5WJ3FNcWmu62IbkGUue/pEyLBW8VGKKucTPgqeks4fIU1DA4yowQ==",
+      "license": "MIT",
+      "dependencies": {
+        "ajv": "^8.0.0"
+      },
+      "peerDependencies": {
+        "ajv": "^8.0.0"
+      },
+      "peerDependenciesMeta": {
+        "ajv": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/ansi-regex": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
@@ -352,6 +534,21 @@
         "node": "^12.13.0 || ^14.15.0 || >=16.0.0"
       }
     },
+    "node_modules/argparse": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "license": "MIT",
+      "dependencies": {
+        "sprintf-js": "~1.0.2"
+      }
+    },
+    "node_modules/argparse/node_modules/sprintf-js": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "integrity": "sha512-D9cPgkvLlV3t3IzL0D0YLvGA9Ahk4PcvVwUbN0dSGr1aP0Nrt4AEnTUbuGvquEC0mA64Gqt1fzirlRs5ibXx8g==",
+      "license": "BSD-3-Clause"
+    },
     "node_modules/array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
@@ -466,7 +663,6 @@
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
       "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "fill-range": "^7.1.1"
@@ -805,6 +1001,18 @@
       "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==",
       "license": "MIT"
     },
+    "node_modules/emittery": {
+      "version": "0.13.1",
+      "resolved": "https://registry.npmjs.org/emittery/-/emittery-0.13.1.tgz",
+      "integrity": "sha512-DeWwawk6r5yR9jFgnDKYt4sLS0LmHJJi3ZOnb5/JdbYwj3nW+FxQnHIjhBKz8YLC7oRNPVM9NQ47I3CVx34eqQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sindresorhus/emittery?sponsor=1"
+      }
+    },
     "node_modules/emoji-regex": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
@@ -970,6 +1178,37 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/fast-deep-equal": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+      "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
+      "license": "MIT"
+    },
+    "node_modules/fast-glob": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.3.3.tgz",
+      "integrity": "sha512-7MptL8U0cqcFdzIzwOTHoilX9x5BrNqye7Z/LuC7kCMRio1EMSyqRK3BEAUD7sXRq4iT4AzTVuZdhgQ2TCvYLg==",
+      "license": "MIT",
+      "dependencies": {
+        "@nodelib/fs.stat": "^2.0.2",
+        "@nodelib/fs.walk": "^1.2.3",
+        "glob-parent": "^5.1.2",
+        "merge2": "^1.3.0",
+        "micromatch": "^4.0.8"
+      },
+      "engines": {
+        "node": ">=8.6.0"
+      }
+    },
+    "node_modules/fastq": {
+      "version": "1.19.1",
+      "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.19.1.tgz",
+      "integrity": "sha512-GwLTyxkCXjXbxqIhTsMI2Nui8huMPtnxg7krajPJAjnEG/iiOS7i+zCtWGZR9G0NBKbXKh6X9m9UIsYX/N6vvQ==",
+      "license": "ISC",
+      "dependencies": {
+        "reusify": "^1.0.4"
+      }
+    },
     "node_modules/file-uri-to-path": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
@@ -980,7 +1219,6 @@
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
       "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "to-regex-range": "^5.0.1"
@@ -1031,6 +1269,20 @@
       "integrity": "sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==",
       "license": "MIT"
     },
+    "node_modules/fs-extra": {
+      "version": "11.3.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.3.0.tgz",
+      "integrity": "sha512-Z4XaCL6dUDHfP/jT25jJKMmtxvuwbkrD1vNSMFlo9lNLY2c5FHYSQgHPRZUjAB26TpDEoW9HCOgplrdbaPV/ew==",
+      "license": "MIT",
+      "dependencies": {
+        "graceful-fs": "^4.2.0",
+        "jsonfile": "^6.0.1",
+        "universalify": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=14.14"
+      }
+    },
     "node_modules/fs-minipass": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.1.0.tgz",
@@ -1164,7 +1416,6 @@
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
       "integrity": "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==",
-      "dev": true,
       "license": "ISC",
       "dependencies": {
         "is-glob": "^4.0.1"
@@ -1189,8 +1440,7 @@
       "version": "4.2.11",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.11.tgz",
       "integrity": "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==",
-      "license": "ISC",
-      "optional": true
+      "license": "ISC"
     },
     "node_modules/has-flag": {
       "version": "3.0.0",
@@ -1384,6 +1634,15 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/import-lazy": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/import-lazy/-/import-lazy-4.0.0.tgz",
+      "integrity": "sha512-rKtvo6a868b5Hu3heneU+L4yEQ4jYKLtjpnPeUdK7h0yzXGmyBTypknlkCvHFBqfX9YlorEiMM6Dnq/5atfHkw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/imurmurhash": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
@@ -1480,11 +1739,25 @@
         "node": ">=8"
       }
     },
+    "node_modules/is-core-module": {
+      "version": "2.16.1",
+      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.16.1.tgz",
+      "integrity": "sha512-UfoeMA6fIJ8wTYFEUjelnaGI67v6+N7qXJEvQuIGa99l4xsCruSYOVSQ0uPANn4dAzm8lkYPaKLrrijLq7x23w==",
+      "license": "MIT",
+      "dependencies": {
+        "hasown": "^2.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
       "integrity": "sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=0.10.0"
@@ -1504,7 +1777,6 @@
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.3.tgz",
       "integrity": "sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "is-extglob": "^2.1.1"
@@ -1524,7 +1796,6 @@
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
       "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=0.12.0"
@@ -1537,6 +1808,12 @@
       "license": "ISC",
       "optional": true
     },
+    "node_modules/jju": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/jju/-/jju-1.4.0.tgz",
+      "integrity": "sha512-8wb9Yw966OSxApiCt0K3yNJL8pnNeIv+OEq2YMidz4FKP6nonSRoOXc80iXY4JaN2FC11B9qsNmDsm+ZOfMROA==",
+      "license": "MIT"
+    },
     "node_modules/jsbn": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-1.1.0.tgz",
@@ -1544,6 +1821,24 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/json-schema-traverse": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
+      "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
+      "license": "MIT"
+    },
+    "node_modules/jsonfile": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
+      "integrity": "sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==",
+      "license": "MIT",
+      "dependencies": {
+        "universalify": "^2.0.0"
+      },
+      "optionalDependencies": {
+        "graceful-fs": "^4.1.6"
+      }
+    },
     "node_modules/jsonwebtoken": {
       "version": "9.0.2",
       "resolved": "https://registry.npmjs.org/jsonwebtoken/-/jsonwebtoken-9.0.2.tgz",
@@ -1646,7 +1941,6 @@
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
       "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
       "license": "ISC",
-      "optional": true,
       "dependencies": {
         "yallist": "^4.0.0"
       },
@@ -1709,6 +2003,15 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/merge2": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
+      "integrity": "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/methods": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
@@ -1718,6 +2021,19 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/micromatch": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz",
+      "integrity": "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==",
+      "license": "MIT",
+      "dependencies": {
+        "braces": "^3.0.3",
+        "picomatch": "^2.3.1"
+      },
+      "engines": {
+        "node": ">=8.6"
+      }
+    },
     "node_modules/mime": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
@@ -2157,6 +2473,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/path-parse": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
+      "license": "MIT"
+    },
     "node_modules/path-to-regexp": {
       "version": "0.1.12",
       "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.12.tgz",
@@ -2256,7 +2578,6 @@
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
       "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8.6"
@@ -2265,6 +2586,15 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/pony-cause": {
+      "version": "2.1.11",
+      "resolved": "https://registry.npmjs.org/pony-cause/-/pony-cause-2.1.11.tgz",
+      "integrity": "sha512-M7LhCsdNbNgiLYiP4WjsfLUuFmCfnjdF6jKe2R9NKl4WFN+HZPGHJZ9lnLP7f9ZnKe3U9nuWD0szirmj+migUg==",
+      "license": "0BSD",
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
     "node_modules/postgres-array": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/postgres-array/-/postgres-array-2.0.0.tgz",
@@ -2381,6 +2711,15 @@
         "once": "^1.3.1"
       }
     },
+    "node_modules/punycode": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
+      "integrity": "sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/qs": {
       "version": "6.13.0",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.13.0.tgz",
@@ -2396,6 +2735,26 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/queue-microtask": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
+      "integrity": "sha512-NuaNSa6flKT5JaSYQzJok04JzTL1CA6aGhv5rfLW3PgqA+M2ChpZQnAC8h8i4ZFkBS8X5RqkDBHA7r4hej3K9A==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/range-parser": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
@@ -2462,6 +2821,35 @@
         "node": ">=8.10.0"
       }
     },
+    "node_modules/require-from-string": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
+      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/resolve": {
+      "version": "1.22.10",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.10.tgz",
+      "integrity": "sha512-NPRy+/ncIMeDlTAsuqwKIiferiawhefFJtkNSW0qZJEqMEb+qBt/77B/jGeeek+F0uOeN05CDa6HXbbIgtVX4w==",
+      "license": "MIT",
+      "dependencies": {
+        "is-core-module": "^2.16.0",
+        "path-parse": "^1.0.7",
+        "supports-preserve-symlinks-flag": "^1.0.0"
+      },
+      "bin": {
+        "resolve": "bin/resolve"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/retry": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/retry/-/retry-0.12.0.tgz",
@@ -2478,6 +2866,16 @@
       "integrity": "sha512-XgmCoxKWkDofwH8WddD0w85ZfqYz+ZHlr5yo+3YUCfycWawU56T5ckWXsScsj5B8tqUcIG67DxXByo3VUgiAdA==",
       "license": "MIT"
     },
+    "node_modules/reusify": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.1.0.tgz",
+      "integrity": "sha512-g6QUff04oZpHs0eG5p83rFLhHeV00ug/Yf9nZM6fLeUrPguBTkTQOdpAWWspMh55TZfVQDPaN3NQJfbVRAxdIw==",
+      "license": "MIT",
+      "engines": {
+        "iojs": ">=1.0.0",
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/rimraf": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
@@ -2495,6 +2893,29 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
+    "node_modules/run-parallel": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.2.0.tgz",
+      "integrity": "sha512-5l4VyZR86LZ/lDxZTR6jqL8AFE2S0IFLMP26AbjsLVADxHdhB/c0GUsH+y39UfCi3dzz8OlQuPmnaJOMoDHQBA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "queue-microtask": "^1.2.2"
+      }
+    },
     "node_modules/safe-buffer": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
@@ -2977,6 +3398,15 @@
         "safe-buffer": "~5.2.0"
       }
     },
+    "node_modules/string-argv": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/string-argv/-/string-argv-0.3.2.tgz",
+      "integrity": "sha512-aqD2Q0144Z+/RqG52NeHEkZauTAUWJO8c6yTftGJKO3Tja5tUgIfmIl6kExvhtxSDP7fXB6DvzkfMpCd/F3G+Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6.19"
+      }
+    },
     "node_modules/string-width": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
@@ -3027,6 +3457,18 @@
         "node": ">=4"
       }
     },
+    "node_modules/supports-preserve-symlinks-flag": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
+      "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/tar": {
       "version": "6.2.1",
       "resolved": "https://registry.npmjs.org/tar/-/tar-6.2.1.tgz",
@@ -3091,7 +3533,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "is-number": "^7.0.0"
@@ -3137,6 +3578,18 @@
         "node": "*"
       }
     },
+    "node_modules/type-fest": {
+      "version": "4.37.0",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.37.0.tgz",
+      "integrity": "sha512-S/5/0kFftkq27FPNye0XM1e2NsnoD/3FS+pBmbjmmtLT6I+i344KoOf7pvXreaFsDamWeaJX55nczA1m5PsBDg==",
+      "license": "(MIT OR CC0-1.0)",
+      "engines": {
+        "node": ">=16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/type-is": {
       "version": "1.6.18",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
@@ -3164,6 +3617,22 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/umzug": {
+      "version": "3.8.2",
+      "resolved": "https://registry.npmjs.org/umzug/-/umzug-3.8.2.tgz",
+      "integrity": "sha512-BEWEF8OJjTYVC56GjELeHl/1XjFejrD7aHzn+HldRJTx+pL1siBrKHZC8n4K/xL3bEzVA9o++qD1tK2CpZu4KA==",
+      "license": "MIT",
+      "dependencies": {
+        "@rushstack/ts-command-line": "^4.12.2",
+        "emittery": "^0.13.0",
+        "fast-glob": "^3.3.2",
+        "pony-cause": "^2.1.4",
+        "type-fest": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/undefsafe": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/undefsafe/-/undefsafe-2.0.5.tgz",
@@ -3197,6 +3666,15 @@
         "imurmurhash": "^0.1.4"
       }
     },
+    "node_modules/universalify": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.1.tgz",
+      "integrity": "sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 10.0.0"
+      }
+    },
     "node_modules/unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -3206,6 +3684,15 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/uri-js": {
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
+      "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "punycode": "^2.1.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
diff --git a/package.json b/package.json
index de19dc0..dd3a04a 100644
--- a/package.json
+++ b/package.json
@@ -33,6 +33,7 @@
     "pg": "^8.13.3",
     "sequelize": "^6.37.5",
     "sqlite3": "^5.1.7",
+    "umzug": "^3.8.2",
     "uuid": "^11.1.0"
   },
   "devDependencies": {
diff --git a/src/App.ts b/src/App.ts
index 0c7ecd6..b2ec986 100644
--- a/src/App.ts
+++ b/src/App.ts
@@ -18,8 +18,11 @@ class App {
   }: any) {
     useGlobals();
     $db.sync().then(() => {
-      $repos.userRoles.init();
-      $repos.users.syncAdminUser();
+      $repos.userRoles.init().then(() => {
+        $repos.users.syncAdminUser().then(() => {
+          console.log('  The database is ready');
+        })
+      })
     })
 
     this.app = app;
diff --git a/src/db/Db.ts b/src/db/Db.ts
index 55f3aeb..bfd8f06 100644
--- a/src/db/Db.ts
+++ b/src/db/Db.ts
@@ -1,21 +1,25 @@
 import { Sequelize, Dialect } from 'sequelize';
 
+import Migrations from './Migrations';
+
 import GPSData from './types/GPSData';
 import Role from './types/Role';
 import User from './types/User';
+import UserDevice from './types/UserDevice';
 import UserRole from './types/UserRole';
 import UserSession from './types/UserSession';
 
 class Db {
-  private readonly url: string;
-  private readonly locationUrl: string;
-  private readonly locationTable: string;
+  public readonly url: string;
+  public readonly locationUrl: string;
+  public readonly locationTable: string;
   public readonly locationTableColumns: Record<string, string>;
   private readonly dialect: Dialect;
   private readonly locationDialect: Dialect;
   private readonly tablePrefix: string;
   private readonly appDb: Sequelize;
   private readonly locationDb: Sequelize;
+  private readonly migrations: Migrations;
 
   private static readonly envColumnPrefix = 'DB_LOCATION__';
 
@@ -51,6 +55,8 @@ class Db {
         logging: process.env.DEBUG === 'true' ? console.log : false
       });
     }
+
+    this.migrations = new Migrations(this.appDb);
   }
 
   public static fromEnv(): Db {
@@ -87,7 +93,7 @@ class Db {
       'address',
       'locality',
       'country',
-      'postal_code'
+      'postalCode'
     ].reduce((acc: any, name: string) => {
       acc[name] = process.env[this.prefixedEnv(name)];
       if (!acc[name]?.length && requiredColumns[name]) {
@@ -111,51 +117,10 @@ class Db {
 
   public async sync() {
     console.log('Syncing databases');
-
-    for (const modelName of ['GPSData', 'Role', 'User', 'UserRole', 'UserSession']) {
-      const model = (this as any)[modelName]();
-      process.stdout.write(`  [⌛] Syncing ${model.name}`);
-      await model.sync();
-      await this.appDb.sync();
-      process.stdout.write(`\r  [✅] Synced ${model.name} \n`);
-    }
-
-    this.initConstraints();
+    await this.migrations.up();
     console.log('Database sync completed');
   }
 
-  private initConstraints() {
-    this.appDb.models.UserSession.belongsTo(this.appDb.models.User, {
-      foreignKey: 'userId',
-      targetKey: 'id',
-      as: 'user',
-      onDelete: 'CASCADE'
-    });
-
-    this.appDb.models.User.hasMany(this.appDb.models.UserSession, {
-      foreignKey: 'userId',
-      sourceKey: 'id',
-      as: 'sessions'
-    });
-
-    this.appDb.models.User.belongsToMany(this.appDb.models.Role, {
-      through: this.appDb.models.UserRole,
-      foreignKey: 'userId',
-      otherKey: 'roleId',
-      as: 'roles'
-    });
-
-    this.appDb.models.Role.belongsToMany(this.appDb.models.User, {
-      through: this.appDb.models.UserRole,
-      foreignKey: 'roleId',
-      otherKey: 'userId',
-      as: 'users'
-    });
-
-    this.appDb.models.UserSession.sync();
-    this.appDb.sync();
-  }
-
   /**
    * Tables
    */
@@ -176,31 +141,27 @@ class Db {
 
   public User() {
     return this.appDb.define('User', User(), {
-      indexes: [
-        {
-          unique: true,
-          fields: ['username', 'email'],
-        },
-      ],
       tableName: this.tableName('users'),
       timestamps: false,
     });
   }
 
+  public UserDevice() {
+    return this.appDb.define('UserDevice', UserDevice(), {
+      tableName: this.tableName('user_devices'),
+      timestamps: false,
+    });
+  }
+
   public UserRole() {
     return this.appDb.define('UserRole', UserRole(), {
-      tableName: this.tableName('user_roles'),
+      tableName: this.tableName('users_roles'),
       timestamps: false,
     });
   }
 
   public UserSession() {
     const ret = this.appDb.define('UserSession', UserSession(), {
-      indexes: [
-        {
-          fields: ['userId'],
-        },
-      ],
       tableName: this.tableName('user_sessions'),
       timestamps: false,
     });
diff --git a/src/db/Migrations.ts b/src/db/Migrations.ts
new file mode 100644
index 0000000..55de727
--- /dev/null
+++ b/src/db/Migrations.ts
@@ -0,0 +1,23 @@
+import { Sequelize, } from 'sequelize';
+import { Umzug, SequelizeStorage, } from 'umzug';
+
+class Migrations {
+  private readonly migrations: Umzug;
+
+  constructor(db: Sequelize) {
+    this.migrations = new Umzug({
+      storage: new SequelizeStorage({ sequelize: db }),
+      context: db.getQueryInterface(),
+      migrations: {
+        glob: 'src/db/migrations/*.*s',
+      },
+      logger: console,
+    }) as Umzug;
+  }
+
+  public async up(): Promise<void> {
+    await this.migrations.up();
+  }
+}
+
+export default Migrations;
diff --git a/src/db/migrations/000_initial.ts b/src/db/migrations/000_initial.ts
new file mode 100644
index 0000000..8e241e4
--- /dev/null
+++ b/src/db/migrations/000_initial.ts
@@ -0,0 +1,243 @@
+const { DataTypes } = require('sequelize');
+const { v4: uuidv4 } = require('uuid');
+
+async function createLocationHistoryTable(query: { context: any }) {
+  // Only create the table if locationUrl == appUrl (i.e. the location is stored
+  // on the app managed database and not on an external one)
+  if ($db.locationUrl !== $db.url) {
+    console.log('The location history table is stored on an external database, skipping creation');
+    return;
+  }
+
+  const typeDef: Record<string, any> = {
+    [$db.locationTableColumns['id']]: {
+      type: DataTypes.INTEGER,
+      primaryKey: true,
+      autoIncrement: true
+    },
+    [$db.locationTableColumns['latitude']]: {
+      type: DataTypes.FLOAT,
+      allowNull: false
+    },
+    [$db.locationTableColumns['longitude']]: {
+      type: DataTypes.FLOAT,
+      allowNull: false
+    },
+    [$db.locationTableColumns['timestamp']]: {
+      type: DataTypes.DATE,
+      defaultValue: DataTypes.NOW,
+      allowNull: false
+    },
+  }
+
+  if ($db.locationTableColumns['altitude']) {
+    typeDef[$db.locationTableColumns['altitude']] = {
+      type: DataTypes.FLOAT,
+      allowNull: true
+    }
+  }
+
+  if ($db.locationTableColumns['address']) {
+    typeDef[$db.locationTableColumns['address']] = {
+      type: DataTypes.STRING,
+      allowNull: true
+    }
+  }
+
+  if ($db.locationTableColumns['locality']) {
+    typeDef[$db.locationTableColumns['locality']] = {
+      type: DataTypes.STRING,
+      allowNull: true
+    }
+  }
+
+  if ($db.locationTableColumns['country']) {
+    typeDef[$db.locationTableColumns['country']] = {
+      type: DataTypes.STRING,
+      allowNull: true
+    }
+  }
+
+  if ($db.locationTableColumns['postalCode']) {
+    typeDef[$db.locationTableColumns['postalCode']] = {
+      type: DataTypes.STRING,
+      allowNull: true
+    }
+  }
+
+  await query.context.createTable($db.locationTable, typeDef);
+}
+
+async function createUsersTable(query: { context: any }) {
+  await query.context.createTable($db.tableName('users'), {
+    id: {
+      type: DataTypes.INTEGER,
+      primaryKey: true,
+      autoIncrement: true
+    },
+    username: {
+      type: DataTypes.STRING,
+      allowNull: false,
+      unique: true
+    },
+    email: {
+      type: DataTypes.STRING,
+      allowNull: false,
+      unique: true
+    },
+    password: {
+      type: DataTypes.STRING,
+      allowNull: false
+    },
+    firstName: {
+      type: DataTypes.STRING,
+    },
+    lastName: {
+      type: DataTypes.STRING,
+    },
+    createdAt: {
+      type: DataTypes.DATE,
+      allowNull: false,
+      defaultValue: () => new Date(),
+    },
+  });
+}
+
+async function createRolesTable(query: { context: any }) {
+  await query.context.createTable($db.tableName('roles'), {
+    id: {
+      type: DataTypes.INTEGER,
+      primaryKey: true,
+      autoIncrement: true
+    },
+    name: {
+      type: DataTypes.STRING,
+      allowNull: false,
+      unique: true
+    },
+    createdAt: {
+      type: DataTypes.DATE,
+      allowNull: false,
+      defaultValue: () => new Date(),
+    },
+  });
+}
+
+async function createUsersRolesTable(query: { context: any }) {
+  await query.context.createTable($db.tableName('users_roles'), {
+    id: {
+      type: DataTypes.INTEGER,
+      primaryKey: true,
+      autoIncrement: true
+    },
+    userId: {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+      references: {
+        model: $db.tableName('users'),
+        key: 'id'
+      }
+    },
+    roleId: {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+      references: {
+        model: $db.tableName('roles'),
+        key: 'id'
+      }
+    },
+    createdAt: {
+      type: DataTypes.DATE,
+      allowNull: false,
+      defaultValue: () => new Date(),
+    },
+  });
+}
+
+async function createUserSessionsTable(query: { context: any }) {
+  await query.context.createTable($db.tableName('user_sessions'), {
+    id: {
+      type: DataTypes.UUID,
+      primaryKey: true,
+      allowNull: false,
+      defaultValue: () => uuidv4(),
+    },
+    userId: {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+      references: {
+        model: $db.tableName('users'),
+        key: 'id'
+      }
+    },
+    name: {
+      type: DataTypes.STRING,
+      allowNull: true,
+    },
+    expiresAt: {
+      type: DataTypes.DATE,
+      allowNull: true,
+    },
+    createdAt: {
+      type: DataTypes.DATE,
+      allowNull: false,
+      defaultValue: () => new Date(),
+    },
+  });
+}
+
+async function createUserDevicesTable(query: { context: any }) {
+  await query.context.createTable($db.tableName('user_devices'), {
+    id: {
+      type: DataTypes.INTEGER,
+      primaryKey: true,
+      autoIncrement: true
+    },
+    userId: {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+      references: {
+        model: $db.tableName('users'),
+        key: 'id'
+      }
+    },
+    name: {
+      type: DataTypes.STRING,
+      allowNull: false,
+    },
+    createdAt: {
+      type: DataTypes.DATE,
+      allowNull: false,
+      defaultValue: () => new Date(),
+    },
+  });
+}
+
+async function up(query: { context: any }) {
+  await createRolesTable({ context: query.context });
+  await createUsersTable({ context: query.context });
+  await createUserDevicesTable({ context: query.context });
+  await createUsersRolesTable({ context: query.context });
+  await createUserSessionsTable({ context: query.context });
+  await createLocationHistoryTable({ context: query.context });
+}
+
+async function down(query: { context: any }) {
+  await query.context.dropTable($db.tableName('users'));
+  await query.context.dropTable($db.tableName('roles'));
+  await query.context.dropTable($db.tableName('user_devices'));
+  await query.context.dropTable($db.tableName('users_roles'));
+  await query.context.dropTable($db.tableName('user_sessions'));
+
+  if ($db.locationUrl !== $db.url) {
+    console.log('The location history table is stored on an external database, skipping deletion');
+    return;
+  }
+
+  await query.context.dropTable($db.locationTable);
+}
+
+module.exports = {
+  up,
+  down
+}
diff --git a/src/db/types/GPSData.ts b/src/db/types/GPSData.ts
index e208849..60f7f8d 100644
--- a/src/db/types/GPSData.ts
+++ b/src/db/types/GPSData.ts
@@ -51,7 +51,7 @@ function GPSData(locationTableColumns: Record<string, string>): Record<string, a
     };
   }
 
-  const postalCodeCol: string = locationTableColumns['postal_code'];
+  const postalCodeCol: string = locationTableColumns['postalCode'];
   if (postalCodeCol?.length) {
     typeDef[postalCodeCol] = {
       type: DataTypes.STRING,
diff --git a/src/db/types/User.ts b/src/db/types/User.ts
index 4650164..29cf6fb 100644
--- a/src/db/types/User.ts
+++ b/src/db/types/User.ts
@@ -1,4 +1,4 @@
-import { DataTypes, } from 'sequelize';
+import { DataTypes } from 'sequelize';
 
 function User(): Record<string, any> {
   return {
@@ -34,12 +34,6 @@ function User(): Record<string, any> {
       allowNull: false,
       defaultValue: () => new Date(),
     },
-    updatedAt: {
-      type: DataTypes.DATE,
-      allowNull: false,
-      defaultValue: () => new Date(),
-      onUpdate: () => new Date(),
-    },
   };
 }
 
diff --git a/src/db/types/UserDevice.ts b/src/db/types/UserDevice.ts
new file mode 100644
index 0000000..678396b
--- /dev/null
+++ b/src/db/types/UserDevice.ts
@@ -0,0 +1,26 @@
+import { DataTypes, } from 'sequelize';
+
+function UserDevice(): Record<string, any> {
+  return {
+    id: {
+      type: DataTypes.INTEGER,
+      primaryKey: true,
+      autoIncrement: true
+    },
+    userId: {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+    },
+    name: {
+      type: DataTypes.STRING,
+      allowNull: false,
+    },
+    createdAt: {
+      type: DataTypes.DATE,
+      allowNull: false,
+      defaultValue: () => new Date(),
+    },
+  };
+}
+
+export default UserDevice;
diff --git a/src/db/types/UserRole.ts b/src/db/types/UserRole.ts
index 246f22d..0e0fb33 100644
--- a/src/db/types/UserRole.ts
+++ b/src/db/types/UserRole.ts
@@ -20,12 +20,6 @@ function UserRole(): Record<string, any> {
       allowNull: false,
       defaultValue: () => new Date(),
     },
-    updatedAt: {
-      type: DataTypes.DATE,
-      allowNull: false,
-      defaultValue: () => new Date(),
-      onUpdate: () => new Date(),
-    },
   };
 }
 
diff --git a/src/db/types/UserSession.ts b/src/db/types/UserSession.ts
index 2e9ec0d..b972043 100644
--- a/src/db/types/UserSession.ts
+++ b/src/db/types/UserSession.ts
@@ -22,12 +22,6 @@ function UserSession(): Record<string, any> {
       allowNull: false,
       defaultValue: () => new Date(),
     },
-    updatedAt: {
-      type: DataTypes.DATE,
-      allowNull: false,
-      defaultValue: () => new Date(),
-      onUpdate: () => new Date(),
-    },
   }
 }
 
diff --git a/src/models/User.ts b/src/models/User.ts
index d13bfec..72f92dd 100644
--- a/src/models/User.ts
+++ b/src/models/User.ts
@@ -13,7 +13,6 @@ class User {
   public firstName: Optional<string>;
   public lastName: Optional<string>;
   public createdAt: Optional<Date>;
-  public updatedAt: Optional<Date>;
 
   constructor({
     id,
@@ -23,7 +22,6 @@ class User {
     firstName = null,
     lastName = null,
     createdAt = null,
-    updatedAt = null,
   }: User) {
     this.id = id;
     this.username = username;
@@ -32,7 +30,6 @@ class User {
     this.firstName = firstName;
     this.lastName = lastName;
     this.createdAt = createdAt;
-    this.updatedAt = updatedAt;
   }
 
   public static hashPassword(password: string): string {
diff --git a/src/models/UserSession.ts b/src/models/UserSession.ts
index 912e12d..5513bff 100644
--- a/src/models/UserSession.ts
+++ b/src/models/UserSession.ts
@@ -7,22 +7,19 @@ class UserSession {
   public userId: number;
   public expiresAt: Optional<Date>;
   public createdAt: Optional<Date>;
-  public updatedAt: Optional<Date>;
 
   constructor({
     id,
     userId,
     expiresAt = null,
     createdAt = null,
-    updatedAt = null,
   }: any) {
     this.id = id;
     this.userId = userId;
     this.expiresAt = expiresAt;
     this.createdAt = createdAt;
-    this.updatedAt = updatedAt;
 
-    ['expiresAt', 'createdAt', 'updatedAt'].forEach((key) => {
+    ['expiresAt', 'createdAt'].forEach((key) => {
       if ((this as any)[key] && !((this as any)[key] instanceof Date)) {
         (this as any)[key] = new Date((this as any)[key]);
       }
diff --git a/src/repos/Location.ts b/src/repos/Location.ts
index 9decd44..4f3a32a 100644
--- a/src/repos/Location.ts
+++ b/src/repos/Location.ts
@@ -24,7 +24,7 @@ class Location {
           address: data[mappings.address],
           locality: data[mappings.locality],
           country: data[mappings.country],
-          postalCode: data[mappings.postal_code],
+          postalCode: data[mappings.postalCode],
           timestamp: data[mappings.timestamp],
         });
       });
diff --git a/src/repos/UserSessions.ts b/src/repos/UserSessions.ts
index 42c11d4..9e08a55 100644
--- a/src/repos/UserSessions.ts
+++ b/src/repos/UserSessions.ts
@@ -20,10 +20,14 @@ class UserSessions {
     return session;
   }
 
-  public async create(userId: number, expiresAt: Optional<Date> = null): Promise<UserSession> {
+  public async create(userId: number, args: {
+    expiresAt?: Optional<Date>,
+    name?: Optional<string>,
+  }): Promise<UserSession> {
     const session = await $db.UserSession().create({
       userId,
-      expiresAt: expiresAt ? new Date(expiresAt).toISOString() : null,
+      name: args.name,
+      expiresAt: args.expiresAt ? new Date(args.expiresAt).toISOString() : null,
     });
 
     return new UserSession(session.dataValues);
diff --git a/src/requests/LocationRequest.ts b/src/requests/LocationRequest.ts
index a1701a6..d73a326 100644
--- a/src/requests/LocationRequest.ts
+++ b/src/requests/LocationRequest.ts
@@ -92,7 +92,7 @@ class LocationRequest {
     }
 
     if (this.postalCode != null) {
-      where[colMapping.postal_code || 'postal_code'] = this.postalCode;
+      where[colMapping.postalCode || 'postalCode'] = this.postalCode;
     }
 
     queryMap.where = where;
diff --git a/src/routes/api/v1/Auth.ts b/src/routes/api/v1/Auth.ts
index 66c2b07..97196f2 100644
--- a/src/routes/api/v1/Auth.ts
+++ b/src/routes/api/v1/Auth.ts
@@ -47,7 +47,11 @@ class Auth extends ApiV1Route {
       }
     }
 
-    session = await $repos.userSessions.create(user.id, expiresAtDate);
+    session = await $repos.userSessions.create(user.id, {
+      name: req.body?.name,
+      expiresAt: expiresAtDate,
+    })
+
     setCookie(res, {
       name: 'session',
       value: session.getToken(),