diff --git a/app/auth/auth_handler.py b/app/auth/auth_handler.py
index b18df83..cf2794b 100644
--- a/app/auth/auth_handler.py
+++ b/app/auth/auth_handler.py
@@ -11,7 +11,7 @@ JWT_ALGORITHM = config("algorithm")
 JWT_EXPIRY_TIME = config("jwt_expiry_time", default=300, cast=int)
 
 
-def signJWT() -> Dict[str, str]:
+def sign_jwt() -> Dict[str, str]:
     payload = {
         "user_id": "admin",
         "expires": int(round(time.time() * 1000) + JWT_EXPIRY_TIME),
@@ -45,7 +45,7 @@ def handle_local_cookie():
 
     if enabled:
         f = open(full_cookie_file_path, "w")
-        f.write(signJWT()["access_token"])
+        f.write(sign_jwt()["access_token"])
         f.close()
 
 
diff --git a/app/external/sse_startlette/LICENSE.md b/app/external/sse_starlette/LICENSE.md
similarity index 100%
rename from app/external/sse_startlette/LICENSE.md
rename to app/external/sse_starlette/LICENSE.md
diff --git a/app/external/sse_startlette/__init__.py b/app/external/sse_starlette/__init__.py
similarity index 100%
rename from app/external/sse_startlette/__init__.py
rename to app/external/sse_starlette/__init__.py
diff --git a/app/external/sse_startlette/sse_starlette.py b/app/external/sse_starlette/sse_starlette.py
similarity index 100%
rename from app/external/sse_startlette/sse_starlette.py
rename to app/external/sse_starlette/sse_starlette.py
diff --git a/app/main.py b/app/main.py
index 243d650..2b13eee 100644
--- a/app/main.py
+++ b/app/main.py
@@ -22,7 +22,7 @@ from app.auth.auth_handler import (
     remove_local_cookie,
 )
 from app.external.fastapi_versioning import VersionedFastAPI
-from app.external.sse_startlette import EventSourceResponse
+from app.external.sse_starlette import EventSourceResponse
 from app.models.system import APIPlatform
 from app.repositories.bitcoin import (
     register_bitcoin_status_gatherer,
diff --git a/app/repositories/system.py b/app/repositories/system.py
index fa407e6..60162ff 100644
--- a/app/repositories/system.py
+++ b/app/repositories/system.py
@@ -1,7 +1,7 @@
 import asyncio
-from os import path
 import logging
 import re
+from os import path
 
 from decouple import config
 from fastapi import HTTPException, Request, status
@@ -39,7 +39,8 @@ def _check_shell_scripts_status():
 
 _check_shell_scripts_status()
 
-async def callScript(scriptPath) -> str:
+
+async def call_script(scriptPath) -> str:
     cmd = f"bash {scriptPath}"
     logging.warning(f"running script: {cmd}")
     proc = await asyncio.create_subprocess_shell(
@@ -54,24 +55,33 @@ async def callScript(scriptPath) -> str:
         logging.error(stderr.decode())
     return ""
 
-def parseKeyValueLines(lines:list) -> dict:
+
+def parse_key_value_lines(lines: list) -> dict:
     Dict = {}
     for line in lines:
         logging.warning(f"line({line})")
-        if len(line.strip()) == 0: continue
-        if line.strip().startswith('#'): continue
-        if line.find('=') <=0: continue
-        key, value = line.strip().split('=',1)
+        if len(line.strip()) == 0:
+            continue
+        if line.strip().startswith("#"):
+            continue
+        if line.find("=") <= 0:
+            continue
+        key, value = line.strip().split("=", 1)
         Dict[key] = value.strip('"').strip("'")
     return Dict
 
-def parseKeyValueText(text:str) -> dict:
-    return parseKeyValueLines(text.splitlines())
 
-def passwordValid(password : str):
-    if len(password) < 8: return False
-    if password.find(' ') >= 0: return False
-    return re.match('^[a-zA-Z0-9]*$', password) 
+def parse_key_value_text(text: str) -> dict:
+    return parse_key_value_lines(text.splitlines())
+
+
+def password_valid(password: str):
+    if len(password) < 8:
+        return False
+    if password.find(" ") >= 0:
+        return False
+    return re.match("^[a-zA-Z0-9]*$", password)
+
 
 async def get_system_info() -> SystemInfo:
     try:
diff --git a/app/repositories/system_impl/raspiblitz.py b/app/repositories/system_impl/raspiblitz.py
index 37342c0..59d2a8a 100644
--- a/app/repositories/system_impl/raspiblitz.py
+++ b/app/repositories/system_impl/raspiblitz.py
@@ -1,6 +1,8 @@
 import asyncio
 import os
 
+from decouple import config
+
 from app.constants import API_VERSION
 from app.models.system import (
     APIPlatform,
@@ -10,9 +12,10 @@ from app.models.system import (
     SystemInfo,
 )
 from app.repositories.lightning import get_ln_info
-from app.repositories.system import SHELL_SCRIPT_PATH
 from app.utils import redis_get
 
+SHELL_SCRIPT_PATH = config("shell_script_path")
+
 
 async def get_system_info_impl() -> SystemInfo:
     lninfo = await get_ln_info()
diff --git a/app/routers/apps.py b/app/routers/apps.py
index 8335237..3f93e63 100644
--- a/app/routers/apps.py
+++ b/app/routers/apps.py
@@ -4,7 +4,7 @@ from fastapi.params import Depends
 import app.repositories.apps as repo
 import app.routers.apps_docs as docs
 from app.auth.auth_bearer import JWTBearer
-from app.external.sse_startlette import EventSourceResponse
+from app.external.sse_starlette import EventSourceResponse
 
 _PREFIX = "apps"
 
diff --git a/app/routers/bitcoin.py b/app/routers/bitcoin.py
index 64deb44..5775831 100644
--- a/app/routers/bitcoin.py
+++ b/app/routers/bitcoin.py
@@ -2,7 +2,7 @@ from fastapi import APIRouter, HTTPException, Request, status
 from fastapi.params import Depends, Query
 
 from app.auth.auth_bearer import JWTBearer
-from app.external.sse_startlette import EventSourceResponse
+from app.external.sse_starlette import EventSourceResponse
 from app.models.bitcoind import BlockchainInfo, BtcInfo, FeeEstimationMode, NetworkInfo
 from app.repositories.bitcoin import (
     estimate_fee,
diff --git a/app/routers/setup.py b/app/routers/setup.py
index e5a83a0..04721c8 100644
--- a/app/routers/setup.py
+++ b/app/routers/setup.py
@@ -1,5 +1,6 @@
 import asyncio
-#from asyncio.windows_events import NULL
+
+# from asyncio.windows_events import NULL
 import logging
 import re
 
@@ -9,27 +10,22 @@ from fastapi.params import Depends
 from fastapi_plugins import depends_redis
 from setuptools import setup
 
-from app.repositories.system import (
-    callScript,
-    parseKeyValueLines,
-    passwordValid
-)
-
 from app.auth.auth_bearer import JWTBearer
-from app.auth.auth_handler import signJWT
+from app.auth.auth_handler import sign_jwt
+from app.repositories.system import call_script, parse_key_value_lines, password_valid
 from app.utils import redis_get
 
 router = APIRouter(prefix="/setup", tags=["Setup"])
 
-setupFilePath="/var/cache/raspiblitz/temp/raspiblitz.setup"
-configFilePath="/mnt/hdd/raspiblitz.conf"
+setupFilePath = "/var/cache/raspiblitz/temp/raspiblitz.setup"
+configFilePath = "/mnt/hdd/raspiblitz.conf"
 
 # can always be called without credentials to check if
 # the system needs or is in setup (setupPhase!="done")
 # for example in the beginning setupPhase can be (see controlSetupDialog.sh)
 # 1) recovery = same version on fresh sd card
 # 2) update = updated version on fresh sd card
-# 3) migration = hdd got data from another node projcect
+# 3) migration = hdd got data from another node project
 # 4) setup = a fresh blitz to setup
 @router.get("/status")
 async def get_status():
@@ -44,6 +40,7 @@ async def get_status():
 # We can do the "MIGRATION" option later - because it would need an additional step after formatting hdd
 # People that need to migrate can do for now by SSH option
 
+
 @router.get("/setup-start-info")
 async def setup_start_info():
 
@@ -51,9 +48,7 @@ async def setup_start_info():
     setupPhase = await redis_get("setupPhase")
     state = await redis_get("state")
     if state != "waitsetup":
-        logging.warning(
-            f"/setup-start-info can only be called when nodes awaits setup"
-        )
+        logging.warning(f"/setup-start-info can only be called when nodes awaits setup")
         return HTTPException(status.status.HTTP_405_METHOD_NOT_ALLOWED)
 
     # get all the additional info needed to do setup dialog
@@ -73,17 +68,16 @@ async def setup_start_info():
     }
 
 
-def writeTextFile(filename: str, arrayOfLines):
+def write_text_file(filename: str, arrayOfLines):
     logging.warning(f"writing {filename}")
-    with open(filename, 'w', encoding='utf-8') as f:
-        f.write('\n'.join(arrayOfLines))
+    with open(filename, "w", encoding="utf-8") as f:
+        f.write("\n".join(arrayOfLines))
+
 
 # With all this info the WebUi can run its own runs its dialogs and in the end makes a call to
 @router.post("/setup-start-done")
-async def setup_start_done(
-    passwordA : str = ""
-):
-    logging.warning(f"START /setup-start-done") 
+async def setup_start_done(passwordA: str = ""):
+    logging.warning(f"START /setup-start-done")
 
     # first check that node is really in setup state
     setupPhase = await redis_get("setupPhase")
@@ -92,18 +86,17 @@ async def setup_start_done(
         logging.warning(f"/setup-start-done can only be called when nodes awaits setup")
         return HTTPException(status.HTTP_405_METHOD_NOT_ALLOWED)
 
-    if setupPhase == "recovery": 
+    if setupPhase == "recovery":
         logging.warning(f"check recovery data")
-        if passwordValid(passwordA) == False:
+        if password_valid(passwordA) == False:
             logging.warning(f"passwordA is not valid")
             return HTTPException(status.HTTP_400_BAD_REQUEST)
-        writeTextFile(setupFilePath,[
-            f"setupType={setupPhase}",
-            "setPasswordA=1",
-            f"passwordA='{passwordA}'"
-        ])
+        write_text_file(
+            setupFilePath,
+            [f"setupType={setupPhase}", "setPasswordA=1", f"passwordA='{passwordA}'"],
+        )
         logging.warning(f"kicking off recovery")
-        await callScript("/home/admin/_cache.sh set state waitprovision")
+        await call_script("/home/admin/_cache.sh set state waitprovision")
     else:
         logging.warning(f"not handled setupPhase state ({setupPhase})")
         return HTTPException(status.HTTP_405_METHOD_NOT_ALLOWED)
@@ -124,10 +117,10 @@ async def setup_start_done(
     # those values get stored in: /var/cache/raspiblitz/temp/raspiblitz.setup
     # also a skeleton raspiblitz.conf gets created (see controlSetupDialog.sh Line 318)
     # and then API sets state to `waitprovision` to kick-off provision
-    
+
     # await redis.publish_json("default", {"data": "Starting setup"})
     # await asyncio.sleep(1)
-    return signJWT()
+    return sign_jwt()
 
 
 # WebUI now loops getting status until state=`waitfinal` then calls:
@@ -143,29 +136,26 @@ async def setup_final_info():
     setupPhase = await redis_get("setupPhase")
     state = await redis_get("state")
     if state != "waitfinal":
-        logging.warning(f"/setup-final-info can only be called when nodes awaits final ({state})")
+        logging.warning(
+            f"/setup-final-info can only be called when nodes awaits final ({state})"
+        )
         return HTTPException(status.HTTP_405_METHOD_NOT_ALLOWED)
 
-    resultlines=[]
-    with open (setupFilePath, "r") as setupfile:
-        resultlines=setupfile.readlines()
-    data=parseKeyValueLines(resultlines)
+    resultlines = []
+    with open(setupFilePath, "r") as setupfile:
+        resultlines = setupfile.readlines()
+    data = parse_key_value_lines(resultlines)
     logging.warning(f"data({data})")
     try:
         setupType = data["setupType"]
     except:
         logging.warning("missing setupType in raspiblitz.setup")
-        setupType=""
+        setupType = ""
     if setupType == "setup":
-        return {
-            "setupType": setupType,
-            "seedwordsNEW": data["seedwordsNEW"]
-        }
+        return {"setupType": setupType, "seedwordsNEW": data["seedwordsNEW"]}
     else:
-        return {
-            "setupType": setupType,
-            "seedwordsNEW": ""
-        }
+        return {"setupType": setupType, "seedwordsNEW": ""}
+
 
 # When WebUI displayed seed words & user confirmed write the calls:
 @router.post("/setup-final-done", dependencies=[Depends(JWTBearer())])
@@ -178,7 +168,5 @@ async def setup_final_done():
         logging.warning(f"/setup-final-done can only be called when nodes awaits final")
         return HTTPException(status.HTTP_405_METHOD_NOT_ALLOWED)
 
-    await callScript("/home/admin/_cache.sh set state donefinal")
-    return {
-        "state": "donefinal"
-    }
+    await call_script("/home/admin/_cache.sh set state donefinal")
+    return {"state": "donefinal"}
diff --git a/app/routers/system.py b/app/routers/system.py
index b7383d1..8bdf686 100644
--- a/app/routers/system.py
+++ b/app/routers/system.py
@@ -1,24 +1,24 @@
-import secrets
 import logging
+import secrets
 
 from decouple import config
 from fastapi import APIRouter, HTTPException, Request, status
 from fastapi.params import Depends
 
 from app.auth.auth_bearer import JWTBearer
-from app.auth.auth_handler import signJWT
-from app.external.sse_startlette import EventSourceResponse
+from app.auth.auth_handler import sign_jwt
+from app.external.sse_starlette import EventSourceResponse
 from app.models.system import APIPlatform, LoginInput, RawDebugLogData, SystemInfo
 from app.repositories.system import (
     HW_INFO_YIELD_TIME,
     PLATFORM,
+    call_script,
     get_debug_logs_raw,
     get_hardware_info,
     get_system_info,
+    parse_key_value_text,
+    password_valid,
     subscribe_hardware_info,
-    callScript,
-    parseKeyValueText,
-    passwordValid
 )
 from app.repositories.system_impl.raspiblitz import shutdown
 from app.routers.system_docs import (
@@ -50,16 +50,21 @@ async def login(i: LoginInput):
 
     if platform == "raspiblitz":
         # script does not work when called from api yet
-        if passwordValid(i.password):
-            result = await callScript(f"/home/admin/config.scripts/blitz.setpassword.sh check-a {i.password}")
-            data = parseKeyValueText(result)
-            if data["correct"] == "1": return signJWT()
+        if password_valid(i.password):
+            result = await call_script(
+                f"/home/admin/config.scripts/blitz.setpassword.sh check-a {i.password}"
+            )
+            data = parse_key_value_text(result)
+            if data["correct"] == "1":
+                return sign_jwt()
         raise HTTPException(status.HTTP_401_UNAUTHORIZED, detail="Password is wrong")
     else:
         match = secrets.compare_digest(i.password, config("login_password", cast=str))
-        if match: return signJWT()
+        if match:
+            return sign_jwt()
         raise HTTPException(status.HTTP_401_UNAUTHORIZED, detail="Password is wrong")
 
+
 @router.post(
     "/refresh-token",
     name=f"{_PREFIX}.refresh-token",
@@ -68,7 +73,7 @@ async def login(i: LoginInput):
     dependencies=[Depends(JWTBearer())],
 )
 def refresh_token():
-    return signJWT()
+    return sign_jwt()
 
 
 @router.get(