diff --git a/aperisolve/__init__.py b/aperisolve/__init__.py
index e69de29..538f764 100644
--- a/aperisolve/__init__.py
+++ b/aperisolve/__init__.py
@@ -0,0 +1,3 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
diff --git a/aperisolve/analyzers/__init__.py b/aperisolve/analyzers/__init__.py
index e69de29..538f764 100644
--- a/aperisolve/analyzers/__init__.py
+++ b/aperisolve/analyzers/__init__.py
@@ -0,0 +1,3 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
diff --git a/aperisolve/analyzers/binwalk.py b/aperisolve/analyzers/binwalk.py
index 6c05b9a..9b8cfac 100644
--- a/aperisolve/analyzers/binwalk.py
+++ b/aperisolve/analyzers/binwalk.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Binwalk Analyzer for Image Submissions."""
 
 import shutil
diff --git a/aperisolve/analyzers/decomposer.py b/aperisolve/analyzers/decomposer.py
index e6440d3..cff14d5 100644
--- a/aperisolve/analyzers/decomposer.py
+++ b/aperisolve/analyzers/decomposer.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Bits Decomposer Analyzer for Image Submissions."""
 
 from pathlib import Path
diff --git a/aperisolve/analyzers/exiftool.py b/aperisolve/analyzers/exiftool.py
index e13e2e9..5ed107d 100644
--- a/aperisolve/analyzers/exiftool.py
+++ b/aperisolve/analyzers/exiftool.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Exiftool Analyzer for Image Submissions."""
 
 import subprocess
diff --git a/aperisolve/analyzers/foremost.py b/aperisolve/analyzers/foremost.py
index 5c55972..eb0fc8c 100644
--- a/aperisolve/analyzers/foremost.py
+++ b/aperisolve/analyzers/foremost.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Foremost Analyzer for Image Submissions."""
 
 import shutil
diff --git a/aperisolve/analyzers/image_resize.py b/aperisolve/analyzers/image_resize.py
index bf30897..17db9b5 100644
--- a/aperisolve/analyzers/image_resize.py
+++ b/aperisolve/analyzers/image_resize.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Image size bruteforcer for common PNG sizes."""
 
 from pathlib import Path
diff --git a/aperisolve/analyzers/openstego.py b/aperisolve/analyzers/openstego.py
index 597356a..aa6e989 100644
--- a/aperisolve/analyzers/openstego.py
+++ b/aperisolve/analyzers/openstego.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """OpenStego Analyzer for Image Submissions."""
 
 import shutil
diff --git a/aperisolve/analyzers/outguess.py b/aperisolve/analyzers/outguess.py
index 976979b..9fc6a78 100644
--- a/aperisolve/analyzers/outguess.py
+++ b/aperisolve/analyzers/outguess.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Outguess Analyzer for Image Submissions."""
 
 import shutil
diff --git a/aperisolve/analyzers/pngcheck.py b/aperisolve/analyzers/pngcheck.py
index a398bd5..730e67c 100644
--- a/aperisolve/analyzers/pngcheck.py
+++ b/aperisolve/analyzers/pngcheck.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Pngcheck Analyzer for Image Submissions."""
 
 import subprocess
diff --git a/aperisolve/analyzers/steghide.py b/aperisolve/analyzers/steghide.py
index d74d077..0602bd6 100644
--- a/aperisolve/analyzers/steghide.py
+++ b/aperisolve/analyzers/steghide.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Steghide Analyzer for Image Submissions."""
 
 import re
diff --git a/aperisolve/analyzers/strings.py b/aperisolve/analyzers/strings.py
index 42c0d53..6757fdb 100644
--- a/aperisolve/analyzers/strings.py
+++ b/aperisolve/analyzers/strings.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Strings Analyzer for Image Submissions."""
 
 import subprocess
diff --git a/aperisolve/analyzers/template_analyzer.py b/aperisolve/analyzers/template_analyzer.py
index bf86779..0008497 100644
--- a/aperisolve/analyzers/template_analyzer.py
+++ b/aperisolve/analyzers/template_analyzer.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Custom Analyzer for Image Submissions."""
 
 import shutil
diff --git a/aperisolve/analyzers/utils.py b/aperisolve/analyzers/utils.py
index da86987..3387106 100644
--- a/aperisolve/analyzers/utils.py
+++ b/aperisolve/analyzers/utils.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Utility functions for analyzers modules."""
 
 import fcntl
diff --git a/aperisolve/analyzers/zsteg.py b/aperisolve/analyzers/zsteg.py
index f530390..0435841 100644
--- a/aperisolve/analyzers/zsteg.py
+++ b/aperisolve/analyzers/zsteg.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Zsteg Analyzer for Image Submissions."""
 
 import subprocess
diff --git a/aperisolve/app.py b/aperisolve/app.py
index a3215b2..3b1ee5d 100644
--- a/aperisolve/app.py
+++ b/aperisolve/app.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Aperi'Solve Flask application."""
 
 import hashlib
@@ -9,46 +12,18 @@ from pathlib import Path
 from typing import Any, Optional
 
 import sentry_sdk
-from sentry_sdk.integrations.flask import FlaskIntegration
-from sentry_sdk.integrations.sqlalchemy import SqlalchemyIntegration
-from sentry_sdk.integrations.rq import RqIntegration
-from sentry_sdk.integrations.threading import ThreadingIntegration
-
 from flask import Flask, Response, abort, jsonify, render_template, request, send_file
 from redis import Redis
 from rq import Queue
 
+from .sentry import initialize_sentry
+
+initialize_sentry()
+
 from .cleanup import cleanup_old_entries
 from .config import IMAGE_EXTENSIONS, RESULT_FOLDER, WORKER_FILES
 from .models import Image, Submission, db, init_db
 
-SENTRY_DSN = os.environ.get("SENTRY_DSN")
-ENVIRONMENT = os.environ.get("ENVIRONMENT", "development")
-
-if SENTRY_DSN:
-    sentry_sdk.init(
-        dsn=SENTRY_DSN,
-        integrations=[
-            FlaskIntegration(),
-            SqlalchemyIntegration(),
-            RqIntegration(),
-            ThreadingIntegration(propagate_hub=True),
-        ],
-        # Set traces_sample_rate to 1.0 to capture 100% of transactions for performance monitoring.
-        # Adjust this value in production (e.g., 0.1 for 10%)
-        traces_sample_rate=float(os.environ.get("SENTRY_TRACES_SAMPLE_RATE", "0.1")),
-        # Set profiles_sample_rate to 1.0 to profile 100% of sampled transactions.
-        profiles_sample_rate=float(os.environ.get("SENTRY_PROFILES_SAMPLE_RATE", "0.1")),
-        # Environment tag (production, staging, development)
-        environment=ENVIRONMENT,
-        # Release version (use git commit hash or version number)
-        release=os.environ.get("SENTRY_RELEASE", "1.0.0"),
-        # Send default PII (user IPs, etc.) - set to False for privacy
-        send_default_pii=False,
-        # Enable automatic breadcrumb tracking
-        enable_tracing=True,
-    )
-
 app: Flask = Flask(__name__)
 app.json.sort_keys = False  # type: ignore
 app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get("DB_URI")
diff --git a/aperisolve/cleanup.py b/aperisolve/cleanup.py
index 402cd25..5a63f96 100644
--- a/aperisolve/cleanup.py
+++ b/aperisolve/cleanup.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Cleanup old entries in the database and file system."""
 
 import shutil
diff --git a/aperisolve/config.py b/aperisolve/config.py
index 96016c3..f4a6458 100644
--- a/aperisolve/config.py
+++ b/aperisolve/config.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Aperi'Solve configuration variables."""
 
 from pathlib import Path
diff --git a/aperisolve/models.py b/aperisolve/models.py
index fa0d345..b064689 100644
--- a/aperisolve/models.py
+++ b/aperisolve/models.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """This module defines the database models for the Aperi'Solve application."""
 
 import itertools
diff --git a/aperisolve/sentry.py b/aperisolve/sentry.py
new file mode 100644
index 0000000..bb87683
--- /dev/null
+++ b/aperisolve/sentry.py
@@ -0,0 +1,46 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
+"""Sentry initialization for Aperisolve."""
+
+import os
+
+import sentry_sdk
+from sentry_sdk.integrations.flask import FlaskIntegration
+from sentry_sdk.integrations.rq import RqIntegration
+from sentry_sdk.integrations.sqlalchemy import SqlalchemyIntegration
+from sentry_sdk.integrations.threading import ThreadingIntegration
+
+SENTRY_DSN = os.environ.get("SENTRY_DSN")
+ENVIRONMENT = os.environ.get("ENVIRONMENT", "development")
+
+
+def initialize_sentry() -> None:
+    """Initialize Sentry SDK once, safely."""
+
+    # No DSN → do nothing
+    dsn = os.environ.get("SENTRY_DSN")
+    if not dsn:
+        return
+
+    # Prevent double initialization (Flask + RQ, CLI, tests, etc.)
+    if sentry_sdk.Hub.current.client is not None:
+        return
+
+    sentry_sdk.init(
+        dsn=dsn,
+        integrations=[
+            FlaskIntegration(),
+            SqlalchemyIntegration(),
+            RqIntegration(),
+            ThreadingIntegration(propagate_hub=True),
+        ],
+        traces_sample_rate=float(os.environ.get("SENTRY_TRACES_SAMPLE_RATE", "0.1")),
+        profiles_sample_rate=float(
+            os.environ.get("SENTRY_PROFILES_SAMPLE_RATE", "0.1")
+        ),
+        environment=os.environ.get("ENVIRONMENT", "development"),
+        release=os.environ.get("SENTRY_RELEASE", "1.0.0"),
+        send_default_pii=False,
+        enable_tracing=True,
+    )
diff --git a/aperisolve/workers.py b/aperisolve/workers.py
index 247b40b..72b7861 100644
--- a/aperisolve/workers.py
+++ b/aperisolve/workers.py
@@ -1,32 +1,19 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Asynchronous worker for analyzing image submissions."""
 
-import os
 import threading
 from pathlib import Path
 from typing import Any
 
 import sentry_sdk
-from sentry_sdk.integrations.rq import RqIntegration
-from sentry_sdk.integrations.threading import ThreadingIntegration
-from sentry_sdk.integrations.sqlalchemy import SqlalchemyIntegration
 
-# Initialize Sentry for workers (separate process from Flask app)
-SENTRY_DSN = os.environ.get("SENTRY_DSN")
-if SENTRY_DSN:
-    sentry_sdk.init(
-        dsn=SENTRY_DSN,
-        integrations=[
-            RqIntegration(),
-            ThreadingIntegration(propagate_hub=True),  # Capture exceptions in threads
-            SqlalchemyIntegration(),
-        ],
-        traces_sample_rate=float(os.environ.get("SENTRY_TRACES_SAMPLE_RATE", "0.1")),
-        environment=os.environ.get("ENVIRONMENT", "development"),
-        release=os.environ.get("SENTRY_RELEASE", "1.0.0"),
-        send_default_pii=False,
-    )
+from .sentry import initialize_sentry
 
-from .analyzers.binwalk import analyze_binwalk
+initialize_sentry()
+
+from .analyzers.binwalk import analyze_binwalk  # pylint: disable=C0413
 from .analyzers.decomposer import analyze_decomposer
 from .analyzers.exiftool import analyze_exiftool
 from .analyzers.foremost import analyze_foremost
@@ -74,8 +61,7 @@ def analyze_image(submission_hash: str) -> None:
 
         if not submission or not image:  # No submission found
             sentry_sdk.capture_message(
-                f"Submission or image not found: {submission_hash}",
-                level="warning"
+                f"Submission or image not found: {submission_hash}", level="warning"
             )
             return
 
@@ -127,10 +113,10 @@ def analyze_image(submission_hash: str) -> None:
             for thread in threads:
                 thread.join()
 
-            submission.status = "completed"
+            submission.status = "completed"  # type: ignore
         except Exception as e:
             sentry_sdk.capture_exception(e)
-            submission.status = "error"
+            submission.status = "error"  # type: ignore
         finally:
             db.session.commit()  # pylint: disable=no-member
             # Flush Sentry events - wait up to 5 seconds for events to be sent
diff --git a/aperisolve/wsgi.py b/aperisolve/wsgi.py
index 0bf784b..a220be7 100644
--- a/aperisolve/wsgi.py
+++ b/aperisolve/wsgi.py
@@ -1,3 +1,6 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
 """Aperi'Solve WSGI runner."""
 
 from .app import app as application