diff --git a/backend/package.json b/backend/package.json
index 64d56b684..73a3826c8 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -11,7 +11,9 @@
     "start": "node server.js",
     "dev": "nodemon server.js",
     "client": "npm run start --prefix client",
-    "heroku-postbuild": "cd client && npm install && npm run build"
+    "heroku-postbuild": "cd client && npm install && npm run build",
+    "clone-or-sync-projects": "node ./scripts/cloneOrSyncCollections.js",
+    "clear-dev-collections": "node ./scripts/clearDevCollections.js"
   },
   "author": "sarL3y",
   "license": "ISC",
diff --git a/backend/scripts/clearDevCollections.js b/backend/scripts/clearDevCollections.js
new file mode 100644
index 000000000..7e4651e7e
--- /dev/null
+++ b/backend/scripts/clearDevCollections.js
@@ -0,0 +1,112 @@
+/**
+ * Script to clear the 'projects' and/or 'recurringevents' collections from the DEV MongoDB database.
+ *
+ * Usage:
+ *   node clearDevCollections.js [--projects] [--recurring-events]
+ *
+ * Arguments:
+ *   --projects           Only clear the 'projects' collection
+ *   --recurring-events   Only clear the 'recurringevents' collection
+ *   --events              Only clear the 'events' collection
+ *   --checkins            Only clear the 'checkins' collection
+ *   --all                Clear all supported collections
+ *   --mock               Only print what would be deleted, do not delete
+ *   --help               Show this help message and exit
+ *   (no flags)           Show help (safety mode)
+ *
+ * Requires environment variable:
+ *   DEV_DB_URI  - MongoDB URI for DEV
+ *
+ * Example:
+ *   node clearDevCollections.js --projects
+ *   node clearDevCollections.js --recurring-events
+ *   node clearDevCollections.js
+ */
+
+const { MongoClient } = require('mongodb');
+require('dotenv').config();
+
+const DEV_DB_NAME = 'vrms-test'; // Match the DEV_DB_NAME from cloneOrSyncProjects.js
+const COLLECTIONS = {
+  projects: 'projects',
+  recurring_events: 'recurringevents',
+  events: 'events',
+  checkins: 'checkins',
+};
+
+function printHelp() {
+  console.log(
+    `\nUsage: node clearDevCollections.js [options]\n\nOptions:\n  --projects           Only clear the 'projects' collection\n  --recurring-events   Only clear the 'recurringevents' collection\n  --events              Only clear the 'events' collection\n  --checkins            Only clear the 'checkins' collection\n  --all                Clear all supported collections\n  --mock               Only print what would be deleted, do not delete\n  --help               Show this help message and exit\n\nExamples:\n  node clearDevCollections.js --projects\n  node clearDevCollections.js --recurring-events\n  node clearDevCollections.js --all\n  node clearDevCollections.js --mock --all\n`,
+  );
+}
+
+function checkEnv() {
+  if (!process.env.DEV_DB_URI) {
+    throw new Error('DEV_DB_URI environment variable must be set.');
+  }
+}
+
+async function clearCollection(devClient, collectionName, isMock) {
+  const devDb = devClient.db(DEV_DB_NAME);
+  if (isMock) {
+    const count = await devDb.collection(collectionName).countDocuments();
+    console.log(
+      `[MOCK] Would delete ${count} documents from ${collectionName} in DEV[${DEV_DB_NAME}].`,
+    );
+  } else {
+    const result = await devDb.collection(collectionName).deleteMany({});
+    console.log(
+      `[INFO] Cleared ${result.deletedCount} documents from ${collectionName} in DEV[${DEV_DB_NAME}].`,
+    );
+  }
+}
+
+async function main() {
+  checkEnv();
+  const doProjects = process.argv.includes('--projects');
+  const doRecurring = process.argv.includes('--recurring-events');
+  const doEvent = process.argv.includes('--events');
+  const doCheckIn = process.argv.includes('--checkins');
+  const doAll = process.argv.includes('--all');
+  const isMock = process.argv.includes('--mock');
+  const isHelp = process.argv.includes('--help');
+  const noArgs = process.argv.length <= 2;
+  if (isHelp || noArgs) {
+    printHelp();
+    return;
+  }
+  const collectionsToClear = [];
+  if (doAll) {
+    collectionsToClear.push('projects', 'recurring_events', 'events', 'checkins');
+  } else {
+    if (doProjects) collectionsToClear.push('projects');
+    if (doRecurring) collectionsToClear.push('recurring_events');
+    if (doEvent) collectionsToClear.push('events');
+    if (doCheckIn) collectionsToClear.push('checkins');
+  }
+  if (collectionsToClear.length === 0) {
+    printHelp();
+    return;
+  }
+
+  let devClient;
+  try {
+    devClient = new MongoClient(process.env.DEV_DB_URI);
+    await devClient.connect();
+    for (const key of collectionsToClear) {
+      await clearCollection(devClient, COLLECTIONS[key], isMock);
+    }
+    if (!isMock) {
+      console.log('[SUCCESS] Collections cleared.');
+    }
+  } catch (err) {
+    console.error('[ERROR]', err.message);
+    process.exitCode = 1;
+  } finally {
+    if (devClient) await devClient.close();
+  }
+}
+
+if (require.main === module) {
+  main();
+}
diff --git a/backend/scripts/cloneOrSyncCollections.js b/backend/scripts/cloneOrSyncCollections.js
new file mode 100644
index 000000000..717ef7a93
--- /dev/null
+++ b/backend/scripts/cloneOrSyncCollections.js
@@ -0,0 +1,217 @@
+/**
+ * Script to clone or sync collections from PROD to DEV MongoDB.
+ *
+ * Usage:
+ *   node cloneOrSyncProjects.js [options]
+ *
+ * Options:
+ *   --projects           Clone/sync the 'projects' collection
+ *   --recurring-events   Clone/sync the 'recurringevents' collection
+ *   --all                Clone/sync all supported collections
+ *   --initial            Initial clone (insertMany, skip duplicates)
+ *   --mock               Only print what would be written, do not write
+ *   --help               Show this help message and exit
+ *   (no flags)           Show help (safety mode)
+ *
+ * Requires environment variables:
+ *   PROD_DB_URI - MongoDB URI for PROD
+ *   DEV_DB_URI  - MongoDB URI for DEV
+ *
+ * Examples:
+ *   node cloneOrSyncProjects.js --projects
+ *   node cloneOrSyncProjects.js --recurring-events --initial
+ *   node cloneOrSyncProjects.js --all --mock
+ */
+
+const { MongoClient } = require('mongodb');
+const mongoose = require('mongoose');
+require('dotenv').config();
+
+// Print help message for CLI usage
+function printHelp() {
+  console.log(
+    `\nUsage: node cloneOrSyncProjects.js [options]\n\nOptions:\n  --projects           Clone/sync the 'projects' collection\n  --recurring-events   Clone/sync the 'recurringevents' collection\n  --all                Clone/sync all supported collections\n  --initial            Initial clone (insertMany, skip duplicates)\n  --mock               Only print what would be written, do not write\n  --help               Show this help message and exit\n\nExamples:\n  node cloneOrSyncProjects.js --projects\n  node cloneOrSyncProjects.js --recurring-events\n  node cloneOrSyncProjects.js --all --mock\n`,
+  );
+}
+
+// ---- CONSTANTS ----
+const COLLECTIONS = {
+  projects: {
+    name: 'projects',
+    model: 'Project',
+  },
+  recurring_events: {
+    name: 'recurringevents',
+    model: 'RecurringEvent',
+  },
+};
+const PROD_DB_NAME = 'db';
+const DEV_DB_NAME = 'vrms-test';
+// ---- CONSTANTS ----
+// const COLLECTION_NAME = 'projects';
+// const PROD_DB_NAME = 'vrms-test';
+// const DEV_DB_NAME = 'vrms-test-sync';
+
+/**
+ * Throws if required environment variables are missing.
+ */
+function checkEnv() {
+  if (!process.env.PROD_DB_URI || !process.env.DEV_DB_URI) {
+    throw new Error('Both PROD_DB_URI and DEV_DB_URI environment variables must be set.');
+  }
+}
+
+/**
+ * Connects to both PROD (via Mongoose) and DEV (via MongoClient) MongoDB databases.
+ * @returns {Promise<{prod: typeof mongoose, dev: MongoClient}>}
+ */
+async function connectDbs() {
+  // Connect PROD using Mongoose
+  await mongoose.connect(process.env.PROD_DB_URI, {
+    dbName: PROD_DB_NAME,
+    useNewUrlParser: true,
+    useUnifiedTopology: true,
+  });
+  // Connect DEV using MongoClient
+  const dev = new MongoClient(process.env.DEV_DB_URI);
+  await dev.connect();
+  return { prod: mongoose, dev };
+}
+
+/**
+ * Fetches all projects from the PROD database using the Project Mongoose model.
+ * @returns {Promise<Array<Object>>}
+ */
+
+async function fetchProdCollection(collectionKey) {
+  const { Project, RecurringEvent } = require('../models');
+  let Model;
+  if (collectionKey === 'projects') Model = Project;
+  else if (collectionKey === 'recurring_events') Model = RecurringEvent;
+  else throw new Error('Unknown collection: ' + collectionKey);
+  const docs = await Model.find({});
+  console.log(
+    `[INFO] Fetched ${docs.length} ${COLLECTIONS[collectionKey].name} from PROD[${PROD_DB_NAME}].`,
+  );
+  return docs.map((doc) => doc.toObject());
+}
+
+/**
+ * Performs the initial clone: insertMany, skip duplicates.
+ * @param {MongoClient} devClient
+ * @param {Array<Object>} projects
+ * @returns {Promise<void>}
+ */
+
+async function initialClone(devClient, collectionKey, docs) {
+  const devDb = devClient.db(DEV_DB_NAME);
+  try {
+    const result = await devDb
+      .collection(COLLECTIONS[collectionKey].name)
+      .insertMany(docs, { ordered: false });
+    console.log(
+      `[INFO] Inserted ${result.insertedCount} ${COLLECTIONS[collectionKey].name} into DEV[${DEV_DB_NAME}].`,
+    );
+  } catch (err) {
+    if (err.code === 11000 || (err.writeErrors && err.writeErrors[0]?.code === 11000)) {
+      // Duplicate key error: some docs inserted, some skipped
+      const inserted = err.result?.result?.nInserted || err.result?.insertedCount || 0;
+      console.log(
+        `[WARN] Duplicate key error. Inserted ${inserted} new ${COLLECTIONS[collectionKey].name}, skipped duplicates.`,
+      );
+    } else {
+      throw err;
+    }
+  }
+}
+
+/**
+ * Syncs projects: upsert by _id using bulkWrite.
+ * @param {MongoClient} devClient
+ * @param {Array<Object>} projects
+ * @returns {Promise<void>}
+ */
+
+async function syncCollection(devClient, collectionKey, docs) {
+  const devDb = devClient.db(DEV_DB_NAME);
+  const ops = docs.map((doc) => ({
+    updateOne: {
+      filter: { _id: doc._id },
+      update: { $set: doc },
+      upsert: true,
+    },
+  }));
+  const result = await devDb
+    .collection(COLLECTIONS[collectionKey].name)
+    .bulkWrite(ops, { ordered: false });
+  console.log(
+    `[INFO] Upserted ${result.upsertedCount}, matched ${result.matchedCount}, modified ${result.modifiedCount} ${COLLECTIONS[collectionKey].name} in DEV.`,
+  );
+}
+
+/**
+ * Main coordinator function.
+ */
+async function main() {
+  checkEnv();
+  const isInitial = process.argv.includes('--initial');
+  const isMock = process.argv.includes('--mock');
+  const isHelp = process.argv.includes('--help');
+  const doProjects = process.argv.includes('--projects');
+  const doRecurring = process.argv.includes('--recurring-events');
+  const doAll = process.argv.includes('--all');
+  const noArgs = process.argv.length <= 2;
+  if (isHelp || noArgs) {
+    printHelp();
+    return;
+  }
+  const collectionsToClone = [];
+  if (doAll) {
+    collectionsToClone.push('projects', 'recurring_events');
+  } else {
+    if (doProjects) collectionsToClone.push('projects');
+    if (doRecurring) collectionsToClone.push('recurring_events');
+  }
+  if (collectionsToClone.length === 0) {
+    printHelp();
+    return;
+  }
+
+  let devClient;
+  try {
+    const dbs = await connectDbs();
+    devClient = dbs.dev;
+    for (const collectionKey of collectionsToClone) {
+      const docs = await fetchProdCollection(collectionKey);
+      if (isMock) {
+        if (isInitial) {
+          console.log(
+            `[MOCK] Would insert ${docs.length} ${COLLECTIONS[collectionKey].name} into DEV[${DEV_DB_NAME}].`,
+          );
+        } else {
+          console.log(
+            `[MOCK] Would upsert ${docs.length} ${COLLECTIONS[collectionKey].name} into DEV[${DEV_DB_NAME}].`,
+          );
+        }
+      } else {
+        if (isInitial) {
+          await initialClone(devClient, collectionKey, docs);
+        } else {
+          await syncCollection(devClient, collectionKey, docs);
+        }
+      }
+    }
+    if (!isMock) console.log('[SUCCESS] Operation completed.');
+  } catch (err) {
+    console.error('[ERROR]', err.message);
+    process.exitCode = 1;
+  } finally {
+    // Close mongoose connection
+    await mongoose.disconnect();
+    if (devClient) await devClient.close();
+  }
+}
+
+if (require.main === module) {
+  main();
+}