diff --git a/.husky/.gitattributes b/.husky/.gitattributes
new file mode 100644
index 00000000..27a4bbb0
--- /dev/null
+++ b/.husky/.gitattributes
@@ -0,0 +1,3 @@
+# Enforce Unix newlines
+.gitattributes  text eol=lf
+pre-commit      text eol=lf
diff --git a/package-lock.json b/package-lock.json
index 7eb1aa1c..8ff821f6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,6 +11,8 @@
         "@typescript-eslint/parser": "^5.15.0",
         "eslint": "^8.11.0",
         "eslint-config-prettier": "^8.5.0",
+        "eslint-import-resolver-typescript": "^2.5.0",
+        "eslint-plugin-import": "^2.25.4",
         "eslint-plugin-prettier": "^4.0.0",
         "husky": "^7.0.4",
         "lerna": "^4.0.0",
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       "dev": true
     },
+    "node_modules/@types/json5": {
+      "version": "0.0.29",
+      "resolved": "https://registry.npmjs.org/@types/json5/-/json5-0.0.29.tgz",
+      "integrity": "sha1-7ihweulOEdK4J7y+UnC86n8+ce4=",
+      "dev": true
+    },
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       "version": "3.0.5",
       "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.5.tgz",
@@ -1894,6 +1902,25 @@
       "integrity": "sha1-nlKHYrSpBmrRY6aWKjZEGOlibs4=",
       "dev": true
     },
+    "node_modules/array-includes": {
+      "version": "3.1.4",
+      "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.1.4.tgz",
+      "integrity": "sha512-ZTNSQkmWumEbiHO2GF4GmWxYVTiQyJy2XOTa15sdQSrvKn7l+180egQMqlrMOUMCyLMD7pmyQe4mMDUT6Behrw==",
+      "dev": true,
+      "dependencies": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.19.1",
+        "get-intrinsic": "^1.1.1",
+        "is-string": "^1.0.7"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/array-union": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-2.1.0.tgz",
@@ -1903,6 +1930,23 @@
         "node": ">=8"
       }
     },
+    "node_modules/array.prototype.flat": {
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/array.prototype.flat/-/array.prototype.flat-1.2.5.tgz",
+      "integrity": "sha512-KaYU+S+ndVqyUnignHftkwc58o3uVU1jzczILJ1tN2YaIZpFIKBiP/x/j97E5MVPsaCloPbqWLB/8qCTVvT2qg==",
+      "dev": true,
+      "dependencies": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.19.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/arrify": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
@@ -3058,6 +3102,188 @@
         "eslint": ">=7.0.0"
       }
     },
+    "node_modules/eslint-import-resolver-node": {
+      "version": "0.3.6",
+      "resolved": "https://registry.npmjs.org/eslint-import-resolver-node/-/eslint-import-resolver-node-0.3.6.tgz",
+      "integrity": "sha512-0En0w03NRVMn9Uiyn8YRPDKvWjxCWkslUEhGNTdGx15RvPJYQ+lbOlqrlNI2vEAs4pDYK4f/HN2TbDmk5TP0iw==",
+      "dev": true,
+      "dependencies": {
+        "debug": "^3.2.7",
+        "resolve": "^1.20.0"
+      }
+    },
+    "node_modules/eslint-import-resolver-node/node_modules/debug": {
+      "version": "3.2.7",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+      "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
+      "dev": true,
+      "dependencies": {
+        "ms": "^2.1.1"
+      }
+    },
+    "node_modules/eslint-import-resolver-typescript": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/eslint-import-resolver-typescript/-/eslint-import-resolver-typescript-2.5.0.tgz",
+      "integrity": "sha512-qZ6e5CFr+I7K4VVhQu3M/9xGv9/YmwsEXrsm3nimw8vWaVHRDrQRp26BgCypTxBp3vUp4o5aVEJRiy0F2DFddQ==",
+      "dev": true,
+      "dependencies": {
+        "debug": "^4.3.1",
+        "glob": "^7.1.7",
+        "is-glob": "^4.0.1",
+        "resolve": "^1.20.0",
+        "tsconfig-paths": "^3.9.0"
+      },
+      "engines": {
+        "node": ">=4"
+      },
+      "peerDependencies": {
+        "eslint": "*",
+        "eslint-plugin-import": "*"
+      }
+    },
+    "node_modules/eslint-module-utils": {
+      "version": "2.7.3",
+      "resolved": "https://registry.npmjs.org/eslint-module-utils/-/eslint-module-utils-2.7.3.tgz",
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+      "dev": true,
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+        "find-up": "^2.1.0"
+      },
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+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
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+      "dev": true,
+      "dependencies": {
+        "ms": "^2.1.1"
+      }
+    },
+    "node_modules/eslint-module-utils/node_modules/find-up": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/find-up/-/find-up-2.1.0.tgz",
+      "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
+      "dev": true,
+      "dependencies": {
+        "locate-path": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/eslint-module-utils/node_modules/locate-path": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-2.0.0.tgz",
+      "integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=",
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+        "path-exists": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/eslint-module-utils/node_modules/p-limit": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.3.0.tgz",
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+      "dependencies": {
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+      },
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+      "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz",
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+      "resolved": "https://registry.npmjs.org/p-try/-/p-try-1.0.0.tgz",
+      "integrity": "sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=",
+      "dev": true,
+      "engines": {
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+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+      "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
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+      "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.25.4.tgz",
+      "integrity": "sha512-/KJBASVFxpu0xg1kIBn9AUa8hQVnszpwgE7Ld0lKAlx7Ie87yzEzCgSkekt+le/YVhiaosO4Y14GDAOc41nfxA==",
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+      "dependencies": {
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+        "array.prototype.flat": "^1.2.5",
+        "debug": "^2.6.9",
+        "doctrine": "^2.1.0",
+        "eslint-import-resolver-node": "^0.3.6",
+        "eslint-module-utils": "^2.7.2",
+        "has": "^1.0.3",
+        "is-core-module": "^2.8.0",
+        "is-glob": "^4.0.3",
+        "minimatch": "^3.0.4",
+        "object.values": "^1.1.5",
+        "resolve": "^1.20.0",
+        "tsconfig-paths": "^3.12.0"
+      },
+      "engines": {
+        "node": ">=4"
+      },
+      "peerDependencies": {
+        "eslint": "^2 || ^3 || ^4 || ^5 || ^6 || ^7.2.0 || ^8"
+      }
+    },
+    "node_modules/eslint-plugin-import/node_modules/debug": {
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "dev": true,
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/eslint-plugin-import/node_modules/doctrine": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
+      "integrity": "sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==",
+      "dev": true,
+      "dependencies": {
+        "esutils": "^2.0.2"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/eslint-plugin-import/node_modules/ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+      "dev": true
+    },
     "node_modules/eslint-plugin-prettier": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-4.0.0.tgz",
@@ -4643,6 +4869,18 @@
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       "dev": true
     },
+    "node_modules/json5": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
+      "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
+      "dev": true,
+      "dependencies": {
+        "minimist": "^1.2.0"
+      },
+      "bin": {
+        "json5": "lib/cli.js"
+      }
+    },
     "node_modules/jsonfile": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
@@ -6095,6 +6333,23 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/object.values": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/object.values/-/object.values-1.1.5.tgz",
+      "integrity": "sha512-QUZRW0ilQ3PnPpbNtgdNV1PDbEqLIiSFB3l+EnGtBQ/8SUTLj1PZwtQHABZtLgwpJZTSZhuGLOGk57Drx2IvYg==",
+      "dev": true,
+      "dependencies": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.19.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -7830,6 +8085,27 @@
         "node": ">=8"
       }
     },
+    "node_modules/tsconfig-paths": {
+      "version": "3.14.0",
+      "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.14.0.tgz",
+      "integrity": "sha512-cg/1jAZoL57R39+wiw4u/SCC6Ic9Q5NqjBOb+9xISedOYurfog9ZNmKJSxAnb2m/5Bq4lE9lhUcau33Ml8DM0g==",
+      "dev": true,
+      "dependencies": {
+        "@types/json5": "^0.0.29",
+        "json5": "^1.0.1",
+        "minimist": "^1.2.0",
+        "strip-bom": "^3.0.0"
+      }
+    },
+    "node_modules/tsconfig-paths/node_modules/strip-bom": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
+      "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/tslib": {
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       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
@@ -9606,6 +9882,12 @@
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       "dev": true
     },
+    "@types/json5": {
+      "version": "0.0.29",
+      "resolved": "https://registry.npmjs.org/@types/json5/-/json5-0.0.29.tgz",
+      "integrity": "sha1-7ihweulOEdK4J7y+UnC86n8+ce4=",
+      "dev": true
+    },
     "@types/minimatch": {
       "version": "3.0.5",
       "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.5.tgz",
@@ -9890,12 +10172,36 @@
       "integrity": "sha1-nlKHYrSpBmrRY6aWKjZEGOlibs4=",
       "dev": true
     },
+    "array-includes": {
+      "version": "3.1.4",
+      "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.1.4.tgz",
+      "integrity": "sha512-ZTNSQkmWumEbiHO2GF4GmWxYVTiQyJy2XOTa15sdQSrvKn7l+180egQMqlrMOUMCyLMD7pmyQe4mMDUT6Behrw==",
+      "dev": true,
+      "requires": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.19.1",
+        "get-intrinsic": "^1.1.1",
+        "is-string": "^1.0.7"
+      }
+    },
     "array-union": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-2.1.0.tgz",
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       "dev": true
     },
+    "array.prototype.flat": {
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/array.prototype.flat/-/array.prototype.flat-1.2.5.tgz",
+      "integrity": "sha512-KaYU+S+ndVqyUnignHftkwc58o3uVU1jzczILJ1tN2YaIZpFIKBiP/x/j97E5MVPsaCloPbqWLB/8qCTVvT2qg==",
+      "dev": true,
+      "requires": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.19.0"
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     "arrify": {
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       "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
@@ -10822,6 +11128,157 @@
       "dev": true,
       "requires": {}
     },
+    "eslint-import-resolver-node": {
+      "version": "0.3.6",
+      "resolved": "https://registry.npmjs.org/eslint-import-resolver-node/-/eslint-import-resolver-node-0.3.6.tgz",
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+      "dev": true,
+      "requires": {
+        "debug": "^3.2.7",
+        "resolve": "^1.20.0"
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+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        }
+      }
+    },
+    "eslint-import-resolver-typescript": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/eslint-import-resolver-typescript/-/eslint-import-resolver-typescript-2.5.0.tgz",
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+      "dev": true,
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+        "glob": "^7.1.7",
+        "is-glob": "^4.0.1",
+        "resolve": "^1.20.0",
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+          "dev": true,
+          "requires": {
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+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.3.0.tgz",
+          "integrity": "sha512-vvcXsLAJ9Dr5rQOPk7toZQZJApBl2K4J6dANSsEuh6QI41JYcsS/qhTGa9ErIUUgK3WNQoJYvylxvjqmiqEA9Q==",
+          "dev": true,
+          "requires": {
+            "p-try": "^1.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz",
+          "integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=",
+          "dev": true,
+          "requires": {
+            "p-limit": "^1.1.0"
+          }
+        },
+        "p-try": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-1.0.0.tgz",
+          "integrity": "sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=",
+          "dev": true
+        },
+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+          "dev": true
+        }
+      }
+    },
+    "eslint-plugin-import": {
+      "version": "2.25.4",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.25.4.tgz",
+      "integrity": "sha512-/KJBASVFxpu0xg1kIBn9AUa8hQVnszpwgE7Ld0lKAlx7Ie87yzEzCgSkekt+le/YVhiaosO4Y14GDAOc41nfxA==",
+      "dev": true,
+      "requires": {
+        "array-includes": "^3.1.4",
+        "array.prototype.flat": "^1.2.5",
+        "debug": "^2.6.9",
+        "doctrine": "^2.1.0",
+        "eslint-import-resolver-node": "^0.3.6",
+        "eslint-module-utils": "^2.7.2",
+        "has": "^1.0.3",
+        "is-core-module": "^2.8.0",
+        "is-glob": "^4.0.3",
+        "minimatch": "^3.0.4",
+        "object.values": "^1.1.5",
+        "resolve": "^1.20.0",
+        "tsconfig-paths": "^3.12.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "dev": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "doctrine": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
+          "integrity": "sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==",
+          "dev": true,
+          "requires": {
+            "esutils": "^2.0.2"
+          }
+        },
+        "ms": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+          "dev": true
+        }
+      }
+    },
     "eslint-plugin-prettier": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-4.0.0.tgz",
@@ -12011,6 +12468,15 @@
       "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus=",
       "dev": true
     },
+    "json5": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
+      "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
+      "dev": true,
+      "requires": {
+        "minimist": "^1.2.0"
+      }
+    },
     "jsonfile": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
@@ -13156,6 +13622,17 @@
         "es-abstract": "^1.19.1"
       }
     },
+    "object.values": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/object.values/-/object.values-1.1.5.tgz",
+      "integrity": "sha512-QUZRW0ilQ3PnPpbNtgdNV1PDbEqLIiSFB3l+EnGtBQ/8SUTLj1PZwtQHABZtLgwpJZTSZhuGLOGk57Drx2IvYg==",
+      "dev": true,
+      "requires": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.19.1"
+      }
+    },
     "once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -14448,6 +14925,26 @@
       "integrity": "sha512-c1PTsA3tYrIsLGkJkzHF+w9F2EyxfXGo4UyJc4pFL++FMjnq0HJS69T3M7d//gKrFKwy429bouPescbjecU+Zw==",
       "dev": true
     },
+    "tsconfig-paths": {
+      "version": "3.14.0",
+      "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.14.0.tgz",
+      "integrity": "sha512-cg/1jAZoL57R39+wiw4u/SCC6Ic9Q5NqjBOb+9xISedOYurfog9ZNmKJSxAnb2m/5Bq4lE9lhUcau33Ml8DM0g==",
+      "dev": true,
+      "requires": {
+        "@types/json5": "^0.0.29",
+        "json5": "^1.0.1",
+        "minimist": "^1.2.0",
+        "strip-bom": "^3.0.0"
+      },
+      "dependencies": {
+        "strip-bom": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
+          "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
+          "dev": true
+        }
+      }
+    },
     "tslib": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
diff --git a/package.json b/package.json
index 28027fa6..f9b66ed1 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,8 @@
     "@typescript-eslint/parser": "^5.15.0",
     "eslint": "^8.11.0",
     "eslint-config-prettier": "^8.5.0",
+    "eslint-import-resolver-typescript": "^2.5.0",
+    "eslint-plugin-import": "^2.25.4",
     "eslint-plugin-prettier": "^4.0.0",
     "husky": "^7.0.4",
     "lerna": "^4.0.0",
diff --git a/packages/backend/.eslintrc.js b/packages/backend/.eslintrc.js
index 2958b711..087b92f5 100644
--- a/packages/backend/.eslintrc.js
+++ b/packages/backend/.eslintrc.js
@@ -1,10 +1,17 @@
-const path = require('node:path');
+const path = require('path');
+const project = path.resolve(__dirname, './tsconfig.json');
 
 module.exports = {
+  ignorePatterns: ['.*'],
   parser: '@typescript-eslint/parser',
-  parserOptions: { project: path.resolve(__dirname, './tsconfig.json'), sourceType: 'module' },
-  plugins: ['@typescript-eslint/eslint-plugin'],
-  extends: ['plugin:@typescript-eslint/recommended', 'plugin:prettier/recommended'],
+  parserOptions: { project, sourceType: 'module' },
+  plugins: ['@typescript-eslint/eslint-plugin', 'import'],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+    'plugin:import/recommended',
+    'plugin:import/typescript',
+  ],
   root: true,
   env: { node: true, jest: true },
   rules: {
@@ -13,7 +20,15 @@ module.exports = {
     '@typescript-eslint/no-inferrable-types': ['warn', { ignoreParameters: true }],
     'no-mixed-operators': 'error',
     '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_+', varsIgnorePattern: '^_+' }],
+    'import/order': ['warn', { alphabetize: { order: 'asc', caseInsensitive: true }, 'newlines-between': 'never' }],
     'prefer-destructuring': 'warn',
     'prefer-template': 'warn',
   },
+  settings: {
+    'import/resolver': {
+      typescript: {
+        project,
+      },
+    },
+  },
 };
diff --git a/packages/backend/example.env b/packages/backend/example.env
index 553a9276..3edf3de8 100644
--- a/packages/backend/example.env
+++ b/packages/backend/example.env
@@ -1,4 +1,4 @@
 PORT=9001
+SSL_PORT=9002
 SSL_CERT_FILE=fullchain.pem
 SSL_KEY_FILE=privkey.pem
-USE_SSL=false
diff --git a/packages/backend/package-lock.json b/packages/backend/package-lock.json
index 4c9c4425..a4e05d9e 100644
--- a/packages/backend/package-lock.json
+++ b/packages/backend/package-lock.json
@@ -7,12 +7,15 @@
       "name": "backend",
       "dependencies": {
         "@nestjs/common": "^8.4.1",
+        "@nestjs/config": "^1.2.0",
         "@nestjs/core": "^8.4.1",
         "@nestjs/platform-express": "^8.4.1",
         "chalk": "^4.1.2",
+        "dayjs": "^1.11.0",
         "dotenv": "^16.0.0",
         "envalid": "^7.3.0",
         "fast-safe-stringify": "^2.1.1",
+        "joi": "^17.6.0",
         "mongoose": "^6.2.6",
         "node-graceful": "^3.1.0",
         "reflect-metadata": "^0.1.13",
@@ -829,6 +832,19 @@
         "kuler": "^2.0.0"
       }
     },
+    "node_modules/@hapi/hoek": {
+      "version": "9.2.1",
+      "resolved": "https://registry.npmjs.org/@hapi/hoek/-/hoek-9.2.1.tgz",
+      "integrity": "sha512-gfta+H8aziZsm8pZa0vj04KO6biEiisppNgA1kbJvFrrWu9Vm7eaUEy76DIxsuTaWvti5fkJVhllWc6ZTE+Mdw=="
+    },
+    "node_modules/@hapi/topo": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@hapi/topo/-/topo-5.1.0.tgz",
+      "integrity": "sha512-foQZKJig7Ob0BMAYBfcJk8d77QtOe7Wo4ox7ff1lQYoNNAb6jwcY1ncdoy2e9wQZzvNy7ODZCYJkK8kzmcAnAg==",
+      "dependencies": {
+        "@hapi/hoek": "^9.0.0"
+      }
+    },
     "node_modules/@istanbuljs/load-nyc-config": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
@@ -1394,6 +1410,22 @@
         }
       }
     },
+    "node_modules/@nestjs/config": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@nestjs/config/-/config-1.2.0.tgz",
+      "integrity": "sha512-GGZOj2g6EMZ23orsQqeD2Vs5E2ZrmAiB0qCGvERv+5nQmZjY4nKkisG4awQsym1uotmmzgtsd9lOiKqTIFONhA==",
+      "dependencies": {
+        "dotenv": "16.0.0",
+        "dotenv-expand": "8.0.1",
+        "lodash": "4.17.21",
+        "uuid": "8.3.2"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^7.0.0 || ^8.0.0",
+        "reflect-metadata": "^0.1.13",
+        "rxjs": "^6.0.0 || ^7.2.0"
+      }
+    },
     "node_modules/@nestjs/core": {
       "version": "8.4.1",
       "resolved": "https://registry.npmjs.org/@nestjs/core/-/core-8.4.1.tgz",
@@ -1513,6 +1545,24 @@
         "npm": ">=5.0.0"
       }
     },
+    "node_modules/@sideway/address": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/@sideway/address/-/address-4.1.3.tgz",
+      "integrity": "sha512-8ncEUtmnTsMmL7z1YPB47kPUq7LpKWJNFPsRzHiIajGC5uXlWGn+AmkYPcHNl8S4tcEGx+cnORnNYaw2wvL+LQ==",
+      "dependencies": {
+        "@hapi/hoek": "^9.0.0"
+      }
+    },
+    "node_modules/@sideway/formula": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@sideway/formula/-/formula-3.0.0.tgz",
+      "integrity": "sha512-vHe7wZ4NOXVfkoRb8T5otiENVlT7a3IAiw7H5M2+GO+9CDgcVUUsX1zalAztCmwyOr2RUTGJdgB+ZvSVqmdHmg=="
+    },
+    "node_modules/@sideway/pinpoint": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@sideway/pinpoint/-/pinpoint-2.0.0.tgz",
+      "integrity": "sha512-RNiOoTPkptFtSVzQevY/yWtZwf/RxyVnPy/OcA9HBM3MlGDnBEYL5B41H0MTn0Uec8Hi+2qUtTfG2WWZBmMejQ=="
+    },
     "node_modules/@sinonjs/commons": {
       "version": "1.8.3",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.8.3.tgz",
@@ -2660,6 +2710,24 @@
       "integrity": "sha512-cOU9usZw8/dXIXKtwa8pM0OTJQuJkxMN6w30csNRUerHfeQ5R6U3kkU/FtJeIf3M202OHfY2U8ccInBG7/xogA==",
       "dev": true
     },
+    "node_modules/class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw==",
+      "optional": true,
+      "peer": true
+    },
+    "node_modules/class-validator": {
+      "version": "0.13.2",
+      "resolved": "https://registry.npmjs.org/class-validator/-/class-validator-0.13.2.tgz",
+      "integrity": "sha512-yBUcQy07FPlGzUjoLuUfIOXzgynnQPPruyK1Ge2B74k9ROwnle1E+NxLWnUv5OLU8hA/qL5leAE9XnXq3byaBw==",
+      "optional": true,
+      "peer": true,
+      "dependencies": {
+        "libphonenumber-js": "^1.9.43",
+        "validator": "^13.7.0"
+      }
+    },
     "node_modules/cli-cursor": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-3.1.0.tgz",
@@ -3037,6 +3105,11 @@
         "node": ">=10"
       }
     },
+    "node_modules/dayjs": {
+      "version": "1.11.0",
+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.0.tgz",
+      "integrity": "sha512-JLC809s6Y948/FuCZPm5IX8rRhQwOiyMb2TfVVQEixG7P8Lm/gt5S7yoQZmC8x1UehI9Pb7sksEt4xx14m+7Ug=="
+    },
     "node_modules/debug": {
       "version": "4.3.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz",
@@ -3197,6 +3270,14 @@
         "node": ">=12"
       }
     },
+    "node_modules/dotenv-expand": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-8.0.1.tgz",
+      "integrity": "sha512-j/Ih7bIERDR5PzI89Zu8ayd3tXZ6E3dbY0ljQ9Db0K87qBO8zdLsi2dIvDHMWtjC3Yxb8XixOTHAtia0fDHRpg==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -5083,6 +5164,18 @@
         "url": "https://github.com/chalk/supports-color?sponsor=1"
       }
     },
+    "node_modules/joi": {
+      "version": "17.6.0",
+      "resolved": "https://registry.npmjs.org/joi/-/joi-17.6.0.tgz",
+      "integrity": "sha512-OX5dG6DTbcr/kbMFj0KGYxuew69HPcAE3K/sZpEV2nP6e/j/C0HV+HNiBPCASxdx5T7DMoa0s8UeHWMnb6n2zw==",
+      "dependencies": {
+        "@hapi/hoek": "^9.0.0",
+        "@hapi/topo": "^5.0.0",
+        "@sideway/address": "^4.1.3",
+        "@sideway/formula": "^3.0.0",
+        "@sideway/pinpoint": "^2.0.0"
+      }
+    },
     "node_modules/js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -5251,6 +5344,13 @@
         "node": ">=6"
       }
     },
+    "node_modules/libphonenumber-js": {
+      "version": "1.9.49",
+      "resolved": "https://registry.npmjs.org/libphonenumber-js/-/libphonenumber-js-1.9.49.tgz",
+      "integrity": "sha512-/wEOIONcVboFky+lWlCaF7glm1FhBz11M5PHeCApA+xDdVfmhKjHktHS8KjyGxouV5CSXIr4f3GvLSpJa4qMSg==",
+      "optional": true,
+      "peer": true
+    },
     "node_modules/lines-and-columns": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/lines-and-columns/-/lines-and-columns-1.2.4.tgz",
@@ -5281,8 +5381,7 @@
     "node_modules/lodash": {
       "version": "4.17.21",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-      "dev": true
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "node_modules/lodash.memoize": {
       "version": "4.1.2",
@@ -7506,6 +7605,16 @@
         "node": ">=10.12.0"
       }
     },
+    "node_modules/validator": {
+      "version": "13.7.0",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-13.7.0.tgz",
+      "integrity": "sha512-nYXQLCBkpJ8X6ltALua9dRrZDHVYxjJ1wgskNt1lH9fzGjs3tgojGSCBjmEPwkWS1y29+DrizMTW19Pr9uB2nw==",
+      "optional": true,
+      "peer": true,
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -8676,6 +8785,19 @@
         "kuler": "^2.0.0"
       }
     },
+    "@hapi/hoek": {
+      "version": "9.2.1",
+      "resolved": "https://registry.npmjs.org/@hapi/hoek/-/hoek-9.2.1.tgz",
+      "integrity": "sha512-gfta+H8aziZsm8pZa0vj04KO6biEiisppNgA1kbJvFrrWu9Vm7eaUEy76DIxsuTaWvti5fkJVhllWc6ZTE+Mdw=="
+    },
+    "@hapi/topo": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@hapi/topo/-/topo-5.1.0.tgz",
+      "integrity": "sha512-foQZKJig7Ob0BMAYBfcJk8d77QtOe7Wo4ox7ff1lQYoNNAb6jwcY1ncdoy2e9wQZzvNy7ODZCYJkK8kzmcAnAg==",
+      "requires": {
+        "@hapi/hoek": "^9.0.0"
+      }
+    },
     "@istanbuljs/load-nyc-config": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
@@ -9107,6 +9229,17 @@
         "uuid": "8.3.2"
       }
     },
+    "@nestjs/config": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@nestjs/config/-/config-1.2.0.tgz",
+      "integrity": "sha512-GGZOj2g6EMZ23orsQqeD2Vs5E2ZrmAiB0qCGvERv+5nQmZjY4nKkisG4awQsym1uotmmzgtsd9lOiKqTIFONhA==",
+      "requires": {
+        "dotenv": "16.0.0",
+        "dotenv-expand": "8.0.1",
+        "lodash": "4.17.21",
+        "uuid": "8.3.2"
+      }
+    },
     "@nestjs/core": {
       "version": "8.4.1",
       "resolved": "https://registry.npmjs.org/@nestjs/core/-/core-8.4.1.tgz",
@@ -9166,6 +9299,24 @@
         "node-fetch": "^2.6.1"
       }
     },
+    "@sideway/address": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/@sideway/address/-/address-4.1.3.tgz",
+      "integrity": "sha512-8ncEUtmnTsMmL7z1YPB47kPUq7LpKWJNFPsRzHiIajGC5uXlWGn+AmkYPcHNl8S4tcEGx+cnORnNYaw2wvL+LQ==",
+      "requires": {
+        "@hapi/hoek": "^9.0.0"
+      }
+    },
+    "@sideway/formula": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@sideway/formula/-/formula-3.0.0.tgz",
+      "integrity": "sha512-vHe7wZ4NOXVfkoRb8T5otiENVlT7a3IAiw7H5M2+GO+9CDgcVUUsX1zalAztCmwyOr2RUTGJdgB+ZvSVqmdHmg=="
+    },
+    "@sideway/pinpoint": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@sideway/pinpoint/-/pinpoint-2.0.0.tgz",
+      "integrity": "sha512-RNiOoTPkptFtSVzQevY/yWtZwf/RxyVnPy/OcA9HBM3MlGDnBEYL5B41H0MTn0Uec8Hi+2qUtTfG2WWZBmMejQ=="
+    },
     "@sinonjs/commons": {
       "version": "1.8.3",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.8.3.tgz",
@@ -10140,6 +10291,24 @@
       "integrity": "sha512-cOU9usZw8/dXIXKtwa8pM0OTJQuJkxMN6w30csNRUerHfeQ5R6U3kkU/FtJeIf3M202OHfY2U8ccInBG7/xogA==",
       "dev": true
     },
+    "class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw==",
+      "optional": true,
+      "peer": true
+    },
+    "class-validator": {
+      "version": "0.13.2",
+      "resolved": "https://registry.npmjs.org/class-validator/-/class-validator-0.13.2.tgz",
+      "integrity": "sha512-yBUcQy07FPlGzUjoLuUfIOXzgynnQPPruyK1Ge2B74k9ROwnle1E+NxLWnUv5OLU8hA/qL5leAE9XnXq3byaBw==",
+      "optional": true,
+      "peer": true,
+      "requires": {
+        "libphonenumber-js": "^1.9.43",
+        "validator": "^13.7.0"
+      }
+    },
     "cli-cursor": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-3.1.0.tgz",
@@ -10462,6 +10631,11 @@
         "whatwg-url": "^8.0.0"
       }
     },
+    "dayjs": {
+      "version": "1.11.0",
+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.0.tgz",
+      "integrity": "sha512-JLC809s6Y948/FuCZPm5IX8rRhQwOiyMb2TfVVQEixG7P8Lm/gt5S7yoQZmC8x1UehI9Pb7sksEt4xx14m+7Ug=="
+    },
     "debug": {
       "version": "4.3.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz",
@@ -10583,6 +10757,11 @@
       "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.0.0.tgz",
       "integrity": "sha512-qD9WU0MPM4SWLPJy/r2Be+2WgQj8plChsyrCNQzW/0WjvcJQiKQJ9mH3ZgB3fxbUUxgc/11ZJ0Fi5KiimWGz2Q=="
     },
+    "dotenv-expand": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-8.0.1.tgz",
+      "integrity": "sha512-j/Ih7bIERDR5PzI89Zu8ayd3tXZ6E3dbY0ljQ9Db0K87qBO8zdLsi2dIvDHMWtjC3Yxb8XixOTHAtia0fDHRpg=="
+    },
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -12029,6 +12208,18 @@
         }
       }
     },
+    "joi": {
+      "version": "17.6.0",
+      "resolved": "https://registry.npmjs.org/joi/-/joi-17.6.0.tgz",
+      "integrity": "sha512-OX5dG6DTbcr/kbMFj0KGYxuew69HPcAE3K/sZpEV2nP6e/j/C0HV+HNiBPCASxdx5T7DMoa0s8UeHWMnb6n2zw==",
+      "requires": {
+        "@hapi/hoek": "^9.0.0",
+        "@hapi/topo": "^5.0.0",
+        "@sideway/address": "^4.1.3",
+        "@sideway/formula": "^3.0.0",
+        "@sideway/pinpoint": "^2.0.0"
+      }
+    },
     "js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -12159,6 +12350,13 @@
       "integrity": "sha512-qsda+H8jTaUaN/x5vzW2rzc+8Rw4TAQ/4KjB46IwK5VH+IlVeeeje/EoZRpiXvIqjFgK84QffqPztGI3VBLG1A==",
       "dev": true
     },
+    "libphonenumber-js": {
+      "version": "1.9.49",
+      "resolved": "https://registry.npmjs.org/libphonenumber-js/-/libphonenumber-js-1.9.49.tgz",
+      "integrity": "sha512-/wEOIONcVboFky+lWlCaF7glm1FhBz11M5PHeCApA+xDdVfmhKjHktHS8KjyGxouV5CSXIr4f3GvLSpJa4qMSg==",
+      "optional": true,
+      "peer": true
+    },
     "lines-and-columns": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/lines-and-columns/-/lines-and-columns-1.2.4.tgz",
@@ -12183,8 +12381,7 @@
     "lodash": {
       "version": "4.17.21",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-      "dev": true
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash.memoize": {
       "version": "4.1.2",
@@ -13842,6 +14039,13 @@
         "source-map": "^0.7.3"
       }
     },
+    "validator": {
+      "version": "13.7.0",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-13.7.0.tgz",
+      "integrity": "sha512-nYXQLCBkpJ8X6ltALua9dRrZDHVYxjJ1wgskNt1lH9fzGjs3tgojGSCBjmEPwkWS1y29+DrizMTW19Pr9uB2nw==",
+      "optional": true,
+      "peer": true
+    },
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
diff --git a/packages/backend/package.json b/packages/backend/package.json
index 67789b1c..3df28e8d 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -9,7 +9,7 @@
     "start:dev": "nest start --watch",
     "start:debug": "nest start --debug --watch",
     "start:prod": "node dist/main",
-    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
+    "lint": "eslint \"{src,test}/**/*.ts\" --fix",
     "test": "jest",
     "test:watch": "jest --watch",
     "test:cov": "jest --coverage",
@@ -18,12 +18,15 @@
   },
   "dependencies": {
     "@nestjs/common": "^8.4.1",
+    "@nestjs/config": "^1.2.0",
     "@nestjs/core": "^8.4.1",
     "@nestjs/platform-express": "^8.4.1",
     "chalk": "^4.1.2",
+    "dayjs": "^1.11.0",
     "dotenv": "^16.0.0",
     "envalid": "^7.3.0",
     "fast-safe-stringify": "^2.1.1",
+    "joi": "^17.6.0",
     "mongoose": "^6.2.6",
     "node-graceful": "^3.1.0",
     "reflect-metadata": "^0.1.13",
diff --git a/packages/backend/src/app.module.ts b/packages/backend/src/app.module.ts
index 86628031..267b745c 100644
--- a/packages/backend/src/app.module.ts
+++ b/packages/backend/src/app.module.ts
@@ -1,10 +1,18 @@
 import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
+import { expressConfig, requireConfig } from '~/config';
+import { LoggerService } from '~/logger/service';
 
 @Module({
-  imports: [],
+  imports: [
+    ConfigModule.forRoot({
+      // expressConfig is required in main.ts
+      validate: requireConfig(expressConfig),
+    }),
+  ],
   controllers: [AppController],
-  providers: [AppService],
+  providers: [AppService, LoggerService],
 })
 export class AppModule {}
diff --git a/packages/backend/src/app.service.ts b/packages/backend/src/app.service.ts
index 927d7cca..ca409b6e 100644
--- a/packages/backend/src/app.service.ts
+++ b/packages/backend/src/app.service.ts
@@ -1,7 +1,12 @@
 import { Injectable } from '@nestjs/common';
+import { LoggerService } from '~/logger/service';
 
 @Injectable()
 export class AppService {
+  constructor(private logger: LoggerService) {
+    this.logger.setContext(AppService.name);
+  }
+
   getHello(): string {
     return 'Hello World!';
   }
diff --git a/packages/backend/src/config/express.ts b/packages/backend/src/config/express.ts
new file mode 100644
index 00000000..070828f6
--- /dev/null
+++ b/packages/backend/src/config/express.ts
@@ -0,0 +1,19 @@
+import Joi from 'joi';
+
+export interface ExpressConfig {
+  PORT?: number;
+  SSL_PORT?: number;
+  SSL_CERT_FILE: string;
+  SSL_KEY_FILE: string;
+}
+
+export const expressConfig = Joi.object<ExpressConfig>({
+  PORT: Joi.number()
+    .port()
+    // Defaults to port 9001 when no port is specified for HTTP or HTTPS.
+    .when('SSL_PORT', { not: Joi.exist(), then: Joi.number().default(9001) }),
+  SSL_PORT: Joi.number().port(),
+  SSL_CERT_FILE: Joi.string(),
+  SSL_KEY_FILE: Joi.string(),
+}) //
+  .with('SSL_PORT', ['SSL_CERT_FILE', 'SSL_KEY_FILE']);
diff --git a/packages/backend/src/config/index.ts b/packages/backend/src/config/index.ts
new file mode 100644
index 00000000..5ccbf08a
--- /dev/null
+++ b/packages/backend/src/config/index.ts
@@ -0,0 +1,19 @@
+import { ObjectSchema } from 'joi';
+export * from './database';
+export * from './express';
+
+export function requireConfig<T>(schema: ObjectSchema<T>): (value: Record<string, unknown>) => T;
+export function requireConfig<T>(...schemas: ObjectSchema[]): (value: Record<string, unknown>) => T;
+export function requireConfig<T>(...schemas: ObjectSchema[]): (value: Record<string, unknown>) => T {
+  return (value) => {
+    const results = schemas.map((schema) => {
+      const result = schema.validate(value, { abortEarly: false, allowUnknown: true });
+      if (result.error) {
+        throw result.error;
+      }
+      return result.value;
+    });
+
+    return Object.assign({}, ...results);
+  };
+}
diff --git a/packages/backend/src/env.ts b/packages/backend/src/env.ts
deleted file mode 100644
index 912e7399..00000000
--- a/packages/backend/src/env.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-import { accessSync, constants } from 'node:fs';
-import 'dotenv/config';
-import { bool, cleanEnv, makeValidator, port, str } from 'envalid';
-
-const file = makeValidator((x) => (accessSync(x, constants.R_OK), x));
-
-const env = cleanEnv(process.env, {
-  NODE_ENV: str({ choices: ['development', 'test', 'production'], default: 'development' }),
-  PORT: port({ default: 9001 }),
-  SSL_CERT_FILE: file({ default: undefined }),
-  SSL_KEY_FILE: file({ default: undefined }),
-  USE_SSL: bool({ default: false }),
-});
-
-if (env.USE_SSL) {
-  if (!env.SSL_CERT_FILE) {
-    throw new Error('env.CERT_FILE_NAME must be set when using SSL.');
-  }
-  if (!env.SSL_KEY_FILE) {
-    throw new Error('env.KEY_FILE_NAME must be set when using SSL.');
-  }
-}
-
-export default env;
diff --git a/packages/backend/src/logger.ts b/packages/backend/src/logger.ts
deleted file mode 100644
index 7e51973a..00000000
--- a/packages/backend/src/logger.ts
+++ /dev/null
@@ -1,92 +0,0 @@
-import { inspect } from 'node:util';
-import chalk, { type Chalk } from 'chalk';
-import jsonStringify_ from 'fast-safe-stringify';
-import { type TransformableInfo } from 'logform';
-import { createLogger, format, transports } from 'winston';
-import 'winston-daily-rotate-file';
-
-const logLevels = ['debug', 'verbose', 'info', 'warn', 'error'] as const;
-
-type LogLevel = typeof logLevels[number];
-
-const colors: { [K in LogLevel]: Chalk } = {
-  error: chalk.bold.redBright,
-  warn: chalk.bold.yellowBright,
-  info: chalk.bold.greenBright,
-  verbose: chalk.bold.cyanBright,
-  debug: chalk.bold.whiteBright,
-};
-
-const isPrimitive = (val: any) => val === null || (typeof val !== 'object' && typeof val !== 'function');
-
-const formatWithInspect = (val: any): string => {
-  if (typeof val === 'string') {
-    return val;
-  }
-  const newLine = isPrimitive(val) ? '' : '\n';
-  return newLine + inspect(val, { depth: null, colors: true });
-};
-
-const jsonStringifyErrors = (_key: string, value: any) => {
-  if (value instanceof Error) {
-    const { name, message, stack } = value;
-    return { name, message, stack };
-  }
-  return value;
-};
-
-const jsonStringify = (obj: any) => jsonStringify_(obj, jsonStringifyErrors);
-
-const EXTRA_DATA = Symbol('EXTRA_DATA');
-
-interface ExtraData {
-  label: string;
-  moreObjects: any[];
-}
-
-const extractData = (info: TransformableInfo) => ({
-  ...(info[EXTRA_DATA as any] as ExtraData),
-  message: info.message,
-  level: info.level as LogLevel,
-  timestamp: info.timestamp as string,
-});
-
-const log = createLogger({
-  transports: [
-    new transports.DailyRotateFile({
-      level: 'info',
-      filename: '%DATE%.log',
-      maxFiles: '14d',
-      format: format.combine(
-        format.timestamp(),
-        format.printf((info) => jsonStringify(extractData(info))),
-      ),
-    }),
-    new transports.Console({
-      level: 'debug',
-      format: format.combine(
-        format.timestamp({ format: 'MMM DD, HH:mm:ss' }),
-        format.printf((info) => {
-          const { label, level, timestamp, message, moreObjects } = extractData(info);
-          const coloredLabelLevel = colors[level](`${label}:${level}`);
-          const formattedObjs = moreObjects.map(formatWithInspect).join(' ');
-          return [timestamp, coloredLabelLevel, message, moreObjects.length ? formattedObjs : ''].join('  ');
-        }),
-      ),
-    }),
-  ],
-});
-
-const getLoggerLevel =
-  (label: string, level: LogLevel) =>
-  (message: string, ...moreObjects: any[]) => {
-    const extractData: ExtraData = { label, moreObjects };
-    log.log(level, message, { label, [EXTRA_DATA]: extractData });
-  };
-
-export const getLogger = (label: string) =>
-  Object.freeze(
-    Object.fromEntries(logLevels.map((lvl) => [lvl, getLoggerLevel(label, lvl)])) as {
-      [K in LogLevel]: ReturnType<typeof getLoggerLevel>;
-    },
-  );
diff --git a/packages/backend/src/logger/module.ts b/packages/backend/src/logger/module.ts
new file mode 100644
index 00000000..53a636f8
--- /dev/null
+++ b/packages/backend/src/logger/module.ts
@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { LoggerService } from './service';
+
+@Module({
+  providers: [LoggerService],
+  exports: [LoggerService],
+})
+export class LoggerModule {}
diff --git a/packages/backend/src/logger/service.ts b/packages/backend/src/logger/service.ts
new file mode 100644
index 00000000..cab71f25
--- /dev/null
+++ b/packages/backend/src/logger/service.ts
@@ -0,0 +1,135 @@
+import { inspect } from 'util';
+import { Injectable, LoggerService as NestLoggerService, Optional, Scope } from '@nestjs/common';
+import chalk, { type Chalk } from 'chalk';
+import dayjs, { Dayjs } from 'dayjs';
+import fastSafeStringify from 'fast-safe-stringify';
+import { type TransformableInfo } from 'logform';
+import { createLogger, format, transports } from 'winston';
+import 'winston-daily-rotate-file';
+
+export type LogLevel = 'info' | 'error' | 'warn' | 'debug' | 'verbose';
+
+interface ExtraData {
+  moreObjects: any[];
+  timestamp: Dayjs;
+}
+
+interface LogEntryData {
+  context: string;
+  level: LogLevel;
+  timestamp: Dayjs;
+  message: string;
+  moreObjects: any[];
+}
+
+@Injectable({ scope: Scope.TRANSIENT })
+export class LoggerService implements NestLoggerService {
+  private static COLORS: { [K in LogLevel]: Chalk } = {
+    error: chalk.bold.redBright,
+    warn: chalk.bold.yellowBright,
+    info: chalk.bold.greenBright,
+    verbose: chalk.bold.cyanBright,
+    debug: chalk.bold.whiteBright,
+  };
+
+  private static EXTRA_DATA = Symbol('EXTRA_DATA');
+
+  private backingLogger = createLogger({
+    transports: [
+      new transports.DailyRotateFile({
+        level: 'info',
+        filename: '%DATE%.log',
+        maxFiles: '14d',
+        format: format.printf((info) => LoggerService.formatForFile(this.extractData(info))),
+      }),
+      new transports.Console({
+        level: 'debug',
+        format: format.printf((info) => LoggerService.formatForConsole(this.extractData(info))),
+      }),
+    ],
+  });
+
+  constructor(@Optional() private context = '') {}
+
+  private static isPrimitive(val: any) {
+    return val === null || (typeof val !== 'object' && typeof val !== 'function');
+  }
+
+  private static formatWithInspect(val: any): string {
+    if (typeof val === 'string') {
+      return val;
+    }
+    const newLine = LoggerService.isPrimitive(val) ? '' : '\n';
+    return newLine + inspect(val, { depth: null, colors: true });
+  }
+
+  private static jsonStringifyErrors(_key: string, value: any) {
+    if (value instanceof Error) {
+      const { name, message, stack } = value;
+      return { name, message, stack };
+    }
+    return value;
+  }
+
+  private static formatForConsole({ context, level, timestamp, message, moreObjects }: LogEntryData): string {
+    const timeStr = timestamp.format('MMM DD, HH:mm:ss');
+    const coloredContextLevel = LoggerService.COLORS[level](`${context}:${level}`);
+    const formattedObjs = moreObjects.map(LoggerService.formatWithInspect).join(' ');
+    return [timeStr, coloredContextLevel, message, formattedObjs].join('  ');
+  }
+
+  private static formatForFile({ timestamp, ...rest }: LogEntryData): string {
+    return fastSafeStringify({ timestamp: timestamp.format(), ...rest }, LoggerService.jsonStringifyErrors);
+  }
+
+  private extractData(info: TransformableInfo): LogEntryData {
+    const data: ExtraData = info[LoggerService.EXTRA_DATA as any];
+    return {
+      context: this.context,
+      level: info.level as LogLevel,
+      timestamp: data.timestamp,
+      message: info.message,
+      moreObjects: data.moreObjects,
+    };
+  }
+
+  private baseLog(level: LogLevel, message: string, moreObjects: any[]): void {
+    const extraData: ExtraData = {
+      moreObjects,
+      timestamp: dayjs(),
+    };
+    this.backingLogger.log(level, message, { [LoggerService.EXTRA_DATA]: extraData });
+  }
+
+  public log(message: string, ...moreObjects: any[]): void {
+    this.info(message, ...moreObjects);
+  }
+
+  public info(message: string, ...moreObjects: any[]): void {
+    this.baseLog('info', message, moreObjects);
+  }
+
+  public error(message: string, ...moreObjects: any[]): void {
+    this.baseLog('error', message, moreObjects);
+  }
+
+  public warn(message: string, ...moreObjects: any[]): void {
+    this.baseLog('warn', message, moreObjects);
+  }
+
+  public debug(message: string, ...moreObjects: any[]): void {
+    this.baseLog('debug', message, moreObjects);
+  }
+
+  public verbose(message: string, ...moreObjects: any[]): void {
+    this.baseLog('verbose', message, moreObjects);
+  }
+
+  public setContext(context: string): void {
+    this.context = context;
+  }
+
+  public setLogLevels(): void {
+    throw new Error('Method not implemented.');
+  }
+}
diff --git a/packages/backend/src/main.ts b/packages/backend/src/main.ts
index a02df10e..ceb1cb8f 100644
--- a/packages/backend/src/main.ts
+++ b/packages/backend/src/main.ts
@@ -1,39 +1,30 @@
-import fs from 'node:fs';
+import fs from 'fs';
+import http from 'http';
+import https from 'https';
+import { NestApplicationOptions } from '@nestjs/common';
 import { NestFactory } from '@nestjs/core';
+import { ExpressAdapter } from '@nestjs/platform-express';
+import express from 'express';
 import Graceful from 'node-graceful';
 import { AppModule } from '~/app.module';
+import { requireConfig, expressConfig } from '~/config';
+import { LoggerService } from '~/logger/service';
 
-import env from '~/env';
-import { getLogger } from '~/logger';
-import { NestApplicationOptions } from '@nestjs/common';
-
-const log = getLogger('main');
+const log = new LoggerService('Main');
 
 process.on('uncaughtException', (err) => log.error('uncaughtException', err));
 process.on('unhandledRejection', (err) => log.error('unhandledRejection', err));
 Graceful.on('exit', (signal, details) => log.info('Exiting.', { signal, details }));
 
 (async () => {
-  const appOpts: NestApplicationOptions = {};
-
-  // Use standard logger service.
-  appOpts.logger = {
-    ...log,
-    log: log.info,
-    setLogLevels: () => {
-      throw new Error('Not implemented.');
-    },
+  const appOpts: NestApplicationOptions = {
+    logger: log,
   };
 
-  // Use SSL if enabled.
-  if (env.USE_SSL) {
-    const key = fs.readFileSync(env.SSL_KEY_FILE, 'utf8');
-    const cert = fs.readFileSync(env.SSL_CERT_FILE, 'utf8');
-    appOpts.httpsOptions = { key, cert };
-  }
-
   // Create the app.
-  const app = await NestFactory.create(AppModule, appOpts);
+  const server = express();
+  const app = await NestFactory.create(AppModule, new ExpressAdapter(server), appOpts);
+  await app.init();
 
   // Always stop the server when we exit.
   Graceful.on('exit', async () => {
@@ -41,7 +32,19 @@ Graceful.on('exit', (signal, details) => log.info('Exiting.', { signal, details
     log.info('Closed the app.');
   });
 
-  // Listen on specified port.
-  await app.listen(env.PORT);
-  log.info('Example app listening on port', env.PORT);
+  const config = requireConfig(expressConfig)(process.env);
+
+  if (config.PORT != null) {
+    // Listen on specified HTTP port.
+    http.createServer(server).listen(config.PORT);
+    log.info('HTTP listening on port', config.PORT);
+  }
+
+  if (config.SSL_PORT != null) {
+    // Listen on specified HTTPS port.
+    const key = fs.readFileSync(config.SSL_KEY_FILE, 'utf8');
+    const cert = fs.readFileSync(config.SSL_CERT_FILE, 'utf8');
+    https.createServer({ key, cert }, server).listen(config.SSL_PORT);
+    log.info('HTTPS listening on port', config.PORT);
+  }
 })();
diff --git a/packages/backend/test/app.e2e-spec.ts b/packages/backend/test/app.e2e-spec.ts
index 0fd486aa..9b668827 100644
--- a/packages/backend/test/app.e2e-spec.ts
+++ b/packages/backend/test/app.e2e-spec.ts
@@ -1,7 +1,7 @@
-import * as request from 'supertest';
+import { INestApplication } from '@nestjs/common';
 import { Test } from '@nestjs/testing';
+import request from 'supertest';
 import { AppModule } from './../src/app.module';
-import { INestApplication } from '@nestjs/common';
 
 describe('AppController (e2e)', () => {
   let app: INestApplication;