diff --git a/backend/server/src/main.py b/backend/server/src/main.py
index 0519ecb..87a85f8 100644
--- a/backend/server/src/main.py
+++ b/backend/server/src/main.py
@@ -1 +1,92 @@
- 
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+from flask import Flask, request, jsonify, render_template
+from flask_mail import Mail, Message
+from dotenv import load_dotenv
+import os
+from constants import *
+import time
+import firebase_admin
+from firebase_admin import credentials
+from flask_cors import CORS
+
+load_dotenv()
+app = Flask(__name__)
+app.secret_key = os.getenv("SECRET_KEY")
+
+
+def create_service_dict():
+    variables_keys = {
+        "type": os.getenv("TYPE"),
+        "project_id": os.getenv("PROJECT_ID"),
+        "private_key_id": os.getenv("PRIVATE_KEY_ID"),
+        "private_key": os.getenv("PRIVATE_KEY"),
+        "client_email": os.getenv("CLIENT_EMAIL"),
+        "client_id": os.getenv("CLIENT_ID"),
+        "auth_uri": os.getenv("AUTH_URI"),
+        "token_uri": os.getenv("TOKEN_URI"),
+        "auth_provider_x509_cert_url": os.getenv("AUTH_PROVIDER_X509_CERT_URL"),
+        "client_x509_cert_url": os.getenv("CLIENT_X509_CERT_URL"),
+        "universe_domain": os.getenv("UNIVERSE_DOMAIN"),
+    }
+    return variables_keys
+
+
+cred = credentials.Certificate(create_service_dict())
+firebase_admin.initialize_app(cred)
+
+from conversation.views import conversation_blueprint
+from exercise.views import exercise_blueprint
+
+# Register the conversation Blueprint
+app.register_blueprint(conversation_blueprint, url_prefix="/conversation")
+app.register_blueprint(exercise_blueprint, url_prefix="/exercise")
+
+CORS(app)
+
+# Load Flask-Mail config from .env
+app.config["MAIL_SERVER"] = os.getenv("MAIL_SERVER")
+app.config["MAIL_PORT"] = int(os.getenv("MAIL_PORT"))
+app.config["MAIL_USE_TLS"] = os.getenv("MAIL_USE_TLS").lower() == "true"
+app.config["MAIL_USERNAME"] = os.getenv("MAIL_USERNAME")
+app.config["MAIL_PASSWORD"] = os.getenv("MAIL_PASSWORD")
+app.config["MAIL_DEFAULT_SENDER"] = os.getenv("MAIL_DEFAULT_SENDER")
+mail = Mail(app)
+
+
+@app.route("/patient/send-link", methods=["POST"])
+def send_link():
+    try:
+        data = request.get_json()
+        practitionId = data.get("practitionId")
+        patientId = data.get("patientId")
+        name = data.get("name")
+        email = data.get("email")
+
+        # Send patient email with login link
+        message = Message(
+            subject=EMAIL_SUBJECT,
+            recipients=[email],
+            body=EMAIL_BODY_TEMPLATE.format(
+                name=name, practitionId=practitionId, patientId=patientId
+            ),
+        )
+        mail.send(message)
+
+        return jsonify({"success": True, "message": "Email sent successfully"})
+
+    except Exception as e:
+        return jsonify({"success": False, "error": str(e)}), 500
+
+
+def format_server_time():
+    server_time = time.localtime()
+    return time.strftime("%I:%M:%S %p", server_time)
+
+
+@app.route("/")
+def index():
+    context = {"server_time": format_server_time()}
+    return render_template("index.html", context=context)
+
+
+if __name__ == "__main__":
+    app.run(debug=True, port=os.getenv("PORT", default=5000))
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