diff --git a/.githooks/post-receive b/.githooks/post-receive
index c8b54d2..d252a2a 100644
--- a/.githooks/post-receive
+++ b/.githooks/post-receive
@@ -285,8 +285,8 @@
   branch="$1"
   pidfile="$2"
   logfile="$3"
-  echo "Running npm tests..."
-  if ! npm run test:postreceive; then
+  echo "Running yarn tests..."
+  if ! yarn test:postreceive; then
     kill "$(cat "$pidfile")" 2>/dev/null || true
     echo "Tests failed for branch '$branch'. Application logs from $logfile:"
     cat "$logfile"
diff --git a/.githooks/pre-push copy b/.githooks/pre-push copy
index 93153bc..99c00f3 100755
--- a/.githooks/pre-push copy
+++ b/.githooks/pre-push copy
@@ -14,7 +14,7 @@
 
 sleep 2
 
-npm run test:prepush
+yarn test:prepush
 TEST_RESULT=$?
 
   # Clean up the app process
diff --git a/.githooks/pre-receive b/.githooks/pre-receive
index 3413108..98ebe5b 100644
--- a/.githooks/pre-receive
+++ b/.githooks/pre-receive
@@ -139,7 +139,7 @@
   pidfile="$2"
   logfile="$3"
   echo "Running npm tests..."
-  if ! npm run test:postreceive; then
+  if ! yarn test:postreceive; then
     kill "$(cat "$pidfile")" 2>/dev/null || true
     echo "Tests failed for branch '$branch'. Application logs from $logfile:"
     cat "$logfile"
diff --git a/.pnp.cjs b/.pnp.cjs
index d3faaf2..c94a7f8 100755
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -45,16 +45,18 @@
           ["fast-check", "npm:4.2.0"],\
           ["fast-glob", "npm:3.3.3"],\
           ["gray-matter", "npm:4.0.3"],\
+          ["handlebars", "npm:4.7.8"],\
           ["hbs", "npm:4.2.0"],\
           ["helmet", "npm:8.1.0"],\
           ["hpp", "npm:0.2.3"],\
           ["js-beautify", "npm:1.15.4"],\
+          ["js-yaml", "npm:4.1.0"],\
           ["marked", "npm:15.0.11"],\
           ["mocha", "npm:11.7.1"],\
-          ["mock-fs", "npm:4.13.0"],\
+          ["mock-fs", "npm:5.5.0"],\
           ["morgan", "npm:1.10.0"],\
           ["node-disk-info", "npm:1.3.0"],\
-          ["node-fetch", "virtual:8e0a8f128776701faaebe7b201c5fc4a913f6d92a7fb4ce8d119211b8f9b1bdf28acba8bab57899eed398942941fff50583fd7c886bd5f3fa0632c78fcbad2e3#npm:2.7.0"],\
+          ["node-fetch", "npm:3.3.2"],\
           ["nodemailer", "npm:7.0.3"],\
           ["nodemon", "npm:3.1.10"],\
           ["path", "npm:0.12.7"],\
@@ -1926,6 +1928,13 @@
       }]\
     ]],\
     ["data-uri-to-buffer", [\
+      ["npm:4.0.1", {\
+        "packageLocation": "../../../../home/me/.yarn/berry/cache/data-uri-to-buffer-npm-4.0.1-5c66a78beb-10c0.zip/node_modules/data-uri-to-buffer/",\
+        "packageDependencies": [\
+          ["data-uri-to-buffer", "npm:4.0.1"]\
+        ],\
+        "linkType": "HARD"\
+      }],\
       ["npm:6.0.2", {\
         "packageLocation": "../../../../home/me/.yarn/berry/cache/data-uri-to-buffer-npm-6.0.2-1725fff558-10c0.zip/node_modules/data-uri-to-buffer/",\
         "packageDependencies": [\
@@ -2551,16 +2560,18 @@
           ["fast-check", "npm:4.2.0"],\
           ["fast-glob", "npm:3.3.3"],\
           ["gray-matter", "npm:4.0.3"],\
+          ["handlebars", "npm:4.7.8"],\
           ["hbs", "npm:4.2.0"],\
           ["helmet", "npm:8.1.0"],\
           ["hpp", "npm:0.2.3"],\
           ["js-beautify", "npm:1.15.4"],\
+          ["js-yaml", "npm:4.1.0"],\
           ["marked", "npm:15.0.11"],\
           ["mocha", "npm:11.7.1"],\
-          ["mock-fs", "npm:4.13.0"],\
+          ["mock-fs", "npm:5.5.0"],\
           ["morgan", "npm:1.10.0"],\
           ["node-disk-info", "npm:1.3.0"],\
-          ["node-fetch", "virtual:8e0a8f128776701faaebe7b201c5fc4a913f6d92a7fb4ce8d119211b8f9b1bdf28acba8bab57899eed398942941fff50583fd7c886bd5f3fa0632c78fcbad2e3#npm:2.7.0"],\
+          ["node-fetch", "npm:3.3.2"],\
           ["nodemailer", "npm:7.0.3"],\
           ["nodemon", "npm:3.1.10"],\
           ["path", "npm:0.12.7"],\
@@ -2790,6 +2801,17 @@
         "linkType": "HARD"\
       }]\
     ]],\
+    ["fetch-blob", [\
+      ["npm:3.2.0", {\
+        "packageLocation": "../../../../home/me/.yarn/berry/cache/fetch-blob-npm-3.2.0-28e01becfc-10c0.zip/node_modules/fetch-blob/",\
+        "packageDependencies": [\
+          ["fetch-blob", "npm:3.2.0"],\
+          ["node-domexception", "npm:1.0.0"],\
+          ["web-streams-polyfill", "npm:3.3.3"]\
+        ],\
+        "linkType": "HARD"\
+      }]\
+    ]],\
     ["file-stream-rotator", [\
       ["npm:0.6.1", {\
         "packageLocation": "../../../../home/me/.yarn/berry/cache/file-stream-rotator-npm-0.6.1-eab45fb13d-10c0.zip/node_modules/file-stream-rotator/",\
@@ -2946,6 +2968,16 @@
         "linkType": "HARD"\
       }]\
     ]],\
+    ["formdata-polyfill", [\
+      ["npm:4.0.10", {\
+        "packageLocation": "../../../../home/me/.yarn/berry/cache/formdata-polyfill-npm-4.0.10-e03013c013-10c0.zip/node_modules/formdata-polyfill/",\
+        "packageDependencies": [\
+          ["fetch-blob", "npm:3.2.0"],\
+          ["formdata-polyfill", "npm:4.0.10"]\
+        ],\
+        "linkType": "HARD"\
+      }]\
+    ]],\
     ["forwarded", [\
       ["npm:0.2.0", {\
         "packageLocation": "../../../../home/me/.yarn/berry/cache/forwarded-npm-0.2.0-6473dabe35-10c0.zip/node_modules/forwarded/",\
@@ -4565,10 +4597,10 @@
       }]\
     ]],\
     ["mock-fs", [\
-      ["npm:4.13.0", {\
-        "packageLocation": "../../../../home/me/.yarn/berry/cache/mock-fs-npm-4.13.0-480cec1336-10c0.zip/node_modules/mock-fs/",\
+      ["npm:5.5.0", {\
+        "packageLocation": "../../../../home/me/.yarn/berry/cache/mock-fs-npm-5.5.0-27a1e1067e-10c0.zip/node_modules/mock-fs/",\
         "packageDependencies": [\
-          ["mock-fs", "npm:4.13.0"]\
+          ["mock-fs", "npm:5.5.0"]\
         ],\
         "linkType": "HARD"\
       }]\
@@ -4733,25 +4765,23 @@
         "linkType": "HARD"\
       }]\
     ]],\
+    ["node-domexception", [\
+      ["npm:1.0.0", {\
+        "packageLocation": "../../../../home/me/.yarn/berry/cache/node-domexception-npm-1.0.0-e1e813b76f-10c0.zip/node_modules/node-domexception/",\
+        "packageDependencies": [\
+          ["node-domexception", "npm:1.0.0"]\
+        ],\
+        "linkType": "HARD"\
+      }]\
+    ]],\
     ["node-fetch", [\
-      ["npm:2.7.0", {\
-        "packageLocation": "../../../../home/me/.yarn/berry/cache/node-fetch-npm-2.7.0-587d57004e-10c0.zip/node_modules/node-fetch/",\
+      ["npm:3.3.2", {\
+        "packageLocation": "../../../../home/me/.yarn/berry/cache/node-fetch-npm-3.3.2-5267e015f2-10c0.zip/node_modules/node-fetch/",\
         "packageDependencies": [\
-          ["node-fetch", "npm:2.7.0"]\
-        ],\
-        "linkType": "SOFT"\
-      }],\
-      ["virtual:8e0a8f128776701faaebe7b201c5fc4a913f6d92a7fb4ce8d119211b8f9b1bdf28acba8bab57899eed398942941fff50583fd7c886bd5f3fa0632c78fcbad2e3#npm:2.7.0", {\
-        "packageLocation": "./.yarn/__virtual__/node-fetch-virtual-513904ecbf/5/home/me/.yarn/berry/cache/node-fetch-npm-2.7.0-587d57004e-10c0.zip/node_modules/node-fetch/",\
-        "packageDependencies": [\
-          ["@types/encoding", null],\
-          ["encoding", null],\
-          ["node-fetch", "virtual:8e0a8f128776701faaebe7b201c5fc4a913f6d92a7fb4ce8d119211b8f9b1bdf28acba8bab57899eed398942941fff50583fd7c886bd5f3fa0632c78fcbad2e3#npm:2.7.0"],\
-          ["whatwg-url", "npm:5.0.0"]\
-        ],\
-        "packagePeers": [\
-          "@types/encoding",\
-          "encoding"\
+          ["data-uri-to-buffer", "npm:4.0.1"],\
+          ["fetch-blob", "npm:3.2.0"],\
+          ["formdata-polyfill", "npm:4.0.10"],\
+          ["node-fetch", "npm:3.3.2"]\
         ],\
         "linkType": "HARD"\
       }]\
@@ -6850,15 +6880,6 @@
         "linkType": "HARD"\
       }]\
     ]],\
-    ["tr46", [\
-      ["npm:0.0.3", {\
-        "packageLocation": "../../../../home/me/.yarn/berry/cache/tr46-npm-0.0.3-de53018915-10c0.zip/node_modules/tr46/",\
-        "packageDependencies": [\
-          ["tr46", "npm:0.0.3"]\
-        ],\
-        "linkType": "HARD"\
-      }]\
-    ]],\
     ["triple-beam", [\
       ["npm:1.4.1", {\
         "packageLocation": "../../../../home/me/.yarn/berry/cache/triple-beam-npm-1.4.1-d21ba5346a-10c0.zip/node_modules/triple-beam/",\
@@ -7160,22 +7181,11 @@
         "linkType": "HARD"\
       }]\
     ]],\
-    ["webidl-conversions", [\
-      ["npm:3.0.1", {\
-        "packageLocation": "../../../../home/me/.yarn/berry/cache/webidl-conversions-npm-3.0.1-60310f6a2b-10c0.zip/node_modules/webidl-conversions/",\
+    ["web-streams-polyfill", [\
+      ["npm:3.3.3", {\
+        "packageLocation": "../../../../home/me/.yarn/berry/cache/web-streams-polyfill-npm-3.3.3-f24b9f8c34-10c0.zip/node_modules/web-streams-polyfill/",\
         "packageDependencies": [\
-          ["webidl-conversions", "npm:3.0.1"]\
-        ],\
-        "linkType": "HARD"\
-      }]\
-    ]],\
-    ["whatwg-url", [\
-      ["npm:5.0.0", {\
-        "packageLocation": "../../../../home/me/.yarn/berry/cache/whatwg-url-npm-5.0.0-374fb45e60-10c0.zip/node_modules/whatwg-url/",\
-        "packageDependencies": [\
-          ["tr46", "npm:0.0.3"],\
-          ["webidl-conversions", "npm:3.0.1"],\
-          ["whatwg-url", "npm:5.0.0"]\
+          ["web-streams-polyfill", "npm:3.3.3"]\
         ],\
         "linkType": "HARD"\
       }]\
diff --git a/package.json b/package.json
index 323acf9..1b2828d 100644
--- a/package.json
+++ b/package.json
@@ -38,10 +38,12 @@
     "express-rate-limit": "^7.5.0",
     "fast-glob": "^3.3.3",
     "gray-matter": "^4.0.3",
+    "handlebars": "^4.7.8",
     "hbs": "^4.2.0",
     "helmet": "^8.1.0",
     "hpp": "^0.2.3",
     "js-beautify": "^1.15.4",
+    "js-yaml": "^4.1.0",
     "marked": "^15.0.11",
     "morgan": "^1.10.0",
     "node-disk-info": "^1.3.0",
@@ -67,8 +69,8 @@
     "chai-as-promised": "^8.0.1",
     "fast-check": "^4.2.0",
     "mocha": "^11.7.1",
-    "mock-fs": "4.13.0",
-    "node-fetch": "^2.7.0",
+    "mock-fs": "^5.5.0",
+    "node-fetch": "^3.3.2",
     "pm2": "^6.0.6",
     "postcss": "^8.5.6",
     "postcss-import": "^16.1.1",
diff --git a/scripts/pre-push-tests.sh b/scripts/pre-push-tests.sh
index e0155c2..56a4579 100755
--- a/scripts/pre-push-tests.sh
+++ b/scripts/pre-push-tests.sh
@@ -24,7 +24,7 @@
 
 sleep 2
 
-npm run test:prepush
+yarn test:prepush
 TEST_RESULT=$?
 
   # Clean up the app process
diff --git a/test/routes.test.js b/test/routes.test.js
index 7ed8826..ee3fd93 100644
--- a/test/routes.test.js
+++ b/test/routes.test.js
@@ -1,5 +1,5 @@
 // test/routes.test.js
-const fetch = require("node-fetch");
+const fetch = require("node-fetch").default;
 const { expect } = require("chai");
 const http = require("http");
 const https = require("https");
diff --git a/yarn.lock b/yarn.lock
index 170c90d..3ca56be 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1612,6 +1612,13 @@
   languageName: node
   linkType: hard
 
+"data-uri-to-buffer@npm:^4.0.0":
+  version: 4.0.1
+  resolution: "data-uri-to-buffer@npm:4.0.1"
+  checksum: 10c0/20a6b93107597530d71d4cb285acee17f66bcdfc03fd81040921a81252f19db27588d87fc8fc69e1950c55cfb0bf8ae40d0e5e21d907230813eb5d5a7f9eb45b
+  languageName: node
+  linkType: hard
+
 "data-uri-to-buffer@npm:^6.0.2":
   version: 6.0.2
   resolution: "data-uri-to-buffer@npm:6.0.2"
@@ -2061,16 +2068,18 @@
     fast-check: "npm:^4.2.0"
     fast-glob: "npm:^3.3.3"
     gray-matter: "npm:^4.0.3"
+    handlebars: "npm:^4.7.8"
     hbs: "npm:^4.2.0"
     helmet: "npm:^8.1.0"
     hpp: "npm:^0.2.3"
     js-beautify: "npm:^1.15.4"
+    js-yaml: "npm:^4.1.0"
     marked: "npm:^15.0.11"
     mocha: "npm:^11.7.1"
-    mock-fs: "npm:4.13.0"
+    mock-fs: "npm:^5.5.0"
     morgan: "npm:^1.10.0"
     node-disk-info: "npm:^1.3.0"
-    node-fetch: "npm:^2.7.0"
+    node-fetch: "npm:^3.3.2"
     nodemailer: "npm:^7.0.3"
     nodemon: "npm:^3.1.10"
     path: "npm:^0.12.7"
@@ -2292,6 +2301,16 @@
   languageName: node
   linkType: hard
 
+"fetch-blob@npm:^3.1.2, fetch-blob@npm:^3.1.4":
+  version: 3.2.0
+  resolution: "fetch-blob@npm:3.2.0"
+  dependencies:
+    node-domexception: "npm:^1.0.0"
+    web-streams-polyfill: "npm:^3.0.3"
+  checksum: 10c0/60054bf47bfa10fb0ba6cb7742acec2f37c1f56344f79a70bb8b1c48d77675927c720ff3191fa546410a0442c998d27ab05e9144c32d530d8a52fbe68f843b69
+  languageName: node
+  linkType: hard
+
 "file-stream-rotator@npm:^0.6.1":
   version: 0.6.1
   resolution: "file-stream-rotator@npm:0.6.1"
@@ -2419,6 +2438,15 @@
   languageName: node
   linkType: hard
 
+"formdata-polyfill@npm:^4.0.10":
+  version: 4.0.10
+  resolution: "formdata-polyfill@npm:4.0.10"
+  dependencies:
+    fetch-blob: "npm:^3.1.2"
+  checksum: 10c0/5392ec484f9ce0d5e0d52fb5a78e7486637d516179b0eb84d81389d7eccf9ca2f663079da56f761355c0a65792810e3b345dc24db9a8bbbcf24ef3c8c88570c6
+  languageName: node
+  linkType: hard
+
 "forwarded@npm:0.2.0":
   version: 0.2.0
   resolution: "forwarded@npm:0.2.0"
@@ -3912,10 +3940,10 @@
   languageName: node
   linkType: hard
 
-"mock-fs@npm:4.13.0":
-  version: 4.13.0
-  resolution: "mock-fs@npm:4.13.0"
-  checksum: 10c0/1efe7c65bf48afeb7d0455ff091e81e7b06c43100f161ce1c420d4328f75215bc4aad450a29978a9b41695f51f3c326df4288a105a54b2608df31ebdc3791d3e
+"mock-fs@npm:^5.5.0":
+  version: 5.5.0
+  resolution: "mock-fs@npm:5.5.0"
+  checksum: 10c0/56539c9ab1d29b72c4b3b54f003808c7c51e5c82454a80fc46fd811f40401652da32412bbf26daa4eabff0e44a08eeafbeb6c885c60c1111b5429a4279efbda4
   languageName: node
   linkType: hard
 
@@ -4058,17 +4086,21 @@
   languageName: node
   linkType: hard
 
-"node-fetch@npm:^2.7.0":
-  version: 2.7.0
-  resolution: "node-fetch@npm:2.7.0"
+"node-domexception@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "node-domexception@npm:1.0.0"
+  checksum: 10c0/5e5d63cda29856402df9472335af4bb13875e1927ad3be861dc5ebde38917aecbf9ae337923777af52a48c426b70148815e890a5d72760f1b4d758cc671b1a2b
+  languageName: node
+  linkType: hard
+
+"node-fetch@npm:^3.3.2":
+  version: 3.3.2
+  resolution: "node-fetch@npm:3.3.2"
   dependencies:
-    whatwg-url: "npm:^5.0.0"
-  peerDependencies:
-    encoding: ^0.1.0
-  peerDependenciesMeta:
-    encoding:
-      optional: true
-  checksum: 10c0/b55786b6028208e6fbe594ccccc213cab67a72899c9234eb59dba51062a299ea853210fcf526998eaa2867b0963ad72338824450905679ff0fa304b8c5093ae8
+    data-uri-to-buffer: "npm:^4.0.0"
+    fetch-blob: "npm:^3.1.4"
+    formdata-polyfill: "npm:^4.0.10"
+  checksum: 10c0/f3d5e56190562221398c9f5750198b34cf6113aa304e34ee97c94fd300ec578b25b2c2906edba922050fce983338fde0d5d34fcb0fc3336ade5bd0e429ad7538
   languageName: node
   linkType: hard
 
@@ -6031,13 +6063,6 @@
   languageName: node
   linkType: hard
 
-"tr46@npm:~0.0.3":
-  version: 0.0.3
-  resolution: "tr46@npm:0.0.3"
-  checksum: 10c0/047cb209a6b60c742f05c9d3ace8fa510bff609995c129a37ace03476a9b12db4dbf975e74600830ef0796e18882b2381fb5fb1f6b4f96b832c374de3ab91a11
-  languageName: node
-  linkType: hard
-
 "triple-beam@npm:^1.3.0, triple-beam@npm:^1.4.1":
   version: 1.4.1
   resolution: "triple-beam@npm:1.4.1"
@@ -6304,20 +6329,10 @@
   languageName: node
   linkType: hard
 
-"webidl-conversions@npm:^3.0.0":
-  version: 3.0.1
-  resolution: "webidl-conversions@npm:3.0.1"
-  checksum: 10c0/5612d5f3e54760a797052eb4927f0ddc01383550f542ccd33d5238cfd65aeed392a45ad38364970d0a0f4fea32e1f4d231b3d8dac4a3bdd385e5cf802ae097db
-  languageName: node
-  linkType: hard
-
-"whatwg-url@npm:^5.0.0":
-  version: 5.0.0
-  resolution: "whatwg-url@npm:5.0.0"
-  dependencies:
-    tr46: "npm:~0.0.3"
-    webidl-conversions: "npm:^3.0.0"
-  checksum: 10c0/1588bed84d10b72d5eec1d0faa0722ba1962f1821e7539c535558fb5398d223b0c50d8acab950b8c488b4ba69043fd833cc2697056b167d8ad46fac3995a55d5
+"web-streams-polyfill@npm:^3.0.3":
+  version: 3.3.3
+  resolution: "web-streams-polyfill@npm:3.3.3"
+  checksum: 10c0/64e855c47f6c8330b5436147db1c75cb7e7474d924166800e8e2aab5eb6c76aac4981a84261dd2982b3e754490900b99791c80ae1407a9fa0dcff74f82ea3a7f
   languageName: node
   linkType: hard