diff --git a/flake.nix b/flake.nix
index a775c55..49a8382 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,34 +5,44 @@
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
   };
 
-  outputs = { self, nixpkgs }: let
-    system = "x86_64-linux";
-    pkgs = nixpkgs.legacyPackages.${system};
-    kernel = pkgs.linux_latest;
-    kmd = import ./pkgs/kmd { inherit pkgs kernel; };
-    sfpi = import ./pkgs/sfpi { inherit pkgs; };
-    luwen = import ./pkgs/luwen { inherit pkgs; };
-    common = import ./pkgs/common { inherit pkgs; };
-    flash = import ./pkgs/flash { inherit pkgs; pyluwen = luwen.pyluwen_0_1; };
-    smi = import ./pkgs/smi { inherit pkgs; pyluwen = luwen.pyluwen; tools-common = common; };
-    umd = import ./pkgs/umd { inherit pkgs; };
-  in {
-    packages.${system} = {
-      kmd = kmd.kmd;
-      udev-rules = kmd.udev-rules;
-      kmd-test = kmd.test;
-      sfpi = sfpi.sfpi;
-      tt-gcc = sfpi.tt-gcc;
-      smi = smi;
-      luwen = luwen.luwen;
-      pyluwen = luwen.pyluwen;
-      tools-common = common;
-      flash = flash;
-      umd = umd;
+  outputs =
+    { self, nixpkgs }:
+    let
+      system = "x86_64-linux";
+      pkgs = nixpkgs.legacyPackages.${system};
+      kernel = pkgs.linux_latest;
+      kmd = import ./pkgs/kmd { inherit pkgs kernel; };
+      sfpi = import ./pkgs/sfpi { inherit pkgs; };
+      luwen = import ./pkgs/luwen { inherit pkgs; };
+      common = import ./pkgs/common { inherit pkgs; };
+      flash = import ./pkgs/flash {
+        inherit pkgs;
+        pyluwen = luwen.pyluwen_0_1;
+      };
+      smi = import ./pkgs/smi {
+        inherit pkgs;
+        pyluwen = luwen.pyluwen;
+        tools-common = common;
+      };
+      umd = import ./pkgs/umd { inherit pkgs; };
+    in
+    {
+      packages.${system} = {
+        kmd = kmd.kmd;
+        udev-rules = kmd.udev-rules;
+        kmd-test = kmd.test;
+        sfpi = sfpi.sfpi;
+        tt-gcc = sfpi.tt-gcc;
+        smi = smi;
+        luwen = luwen.luwen;
+        pyluwen = luwen.pyluwen;
+        tools-common = common;
+        flash = flash;
+        umd = umd;
+      };
+
+      formatter.${system} = pkgs.nixfmt-rfc-style;
+
+      defaultPackage.${system} = self.packages.${system}.smi;
     };
-
-    formatter.${system} = pkgs.nixfmt-rfc-style;
-
-    defaultPackage.${system} = self.packages.${system}.smi;
-  };
 }
diff --git a/pkgs/common/default.nix b/pkgs/common/default.nix
index c53103a..56c7b6d 100644
--- a/pkgs/common/default.nix
+++ b/pkgs/common/default.nix
@@ -14,10 +14,19 @@ buildPythonPackage rec {
   };
 
   patches = [ ./pyproject.patch ];
-  
+
   format = "pyproject";
 
-  propagatedBuildInputs = [ setuptools distro elasticsearch psutil pyyaml rich textual requests ];
+  propagatedBuildInputs = [
+    setuptools
+    distro
+    elasticsearch
+    psutil
+    pyyaml
+    rich
+    textual
+    requests
+  ];
 
   pythonImportsCheck = [
     "tt_tools_common"
diff --git a/pkgs/flash/default.nix b/pkgs/flash/default.nix
index aa79f8b..7212795 100644
--- a/pkgs/flash/default.nix
+++ b/pkgs/flash/default.nix
@@ -17,5 +17,10 @@ buildPythonPackage rec {
 
   # patches = [ ./pyproject.patch ./log.patch ];
 
-  propagatedBuildInputs = [ setuptools pyyaml pyluwen tabulate ]; #requests textual black distro elasticsearch jsons pydantic psutil pyyaml pyluwen importlib-resources pkgs.pre-commit tools-common ];
+  propagatedBuildInputs = [
+    setuptools
+    pyyaml
+    pyluwen
+    tabulate
+  ]; # requests textual black distro elasticsearch jsons pydantic psutil pyyaml pyluwen importlib-resources pkgs.pre-commit tools-common ];
 }
diff --git a/pkgs/smi/default.nix b/pkgs/smi/default.nix
index 0070aab..fa586bb 100644
--- a/pkgs/smi/default.nix
+++ b/pkgs/smi/default.nix
@@ -1,4 +1,8 @@
-{ pkgs, pyluwen, tools-common }:
+{
+  pkgs,
+  pyluwen,
+  tools-common,
+}:
 
 with pkgs.python3Packages;
 
@@ -15,7 +19,25 @@ buildPythonPackage rec {
 
   format = "pyproject";
 
-  patches = [ ./pyproject.patch ./log.patch ];
+  patches = [
+    ./pyproject.patch
+    ./log.patch
+  ];
 
-  propagatedBuildInputs = [ setuptools requests textual black distro elasticsearch jsons pydantic psutil pyyaml pyluwen importlib-resources pkgs.pre-commit tools-common ];
+  propagatedBuildInputs = [
+    setuptools
+    requests
+    textual
+    black
+    distro
+    elasticsearch
+    jsons
+    pydantic
+    psutil
+    pyyaml
+    pyluwen
+    importlib-resources
+    pkgs.pre-commit
+    tools-common
+  ];
 }
diff --git a/pkgs/umd/default.nix b/pkgs/umd/default.nix
index 72e8828..7f0cb5a 100644
--- a/pkgs/umd/default.nix
+++ b/pkgs/umd/default.nix
@@ -11,14 +11,22 @@ pkgs.stdenv.mkDerivation {
     hash = "sha256-jMxhhFWnCjNZZvFiTCeuEHvxvE0+IoaP4NJkr/CDLy8=";
   };
 
-  patches = [ ./fmt_mystery.patch ./missing_headers.patch ];
+  patches = [
+    ./fmt_mystery.patch
+    ./missing_headers.patch
+  ];
 
   makeFlags = [
     "DEVICE_CXX=${pkgs.stdenv.cc.targetPrefix}c++"
     "ARCH_NAME=grayskull"
   ];
 
-  buildInputs = with pkgs; [ libyamlcpp boost fmt hwloc ];
+  buildInputs = with pkgs; [
+    libyamlcpp
+    boost
+    fmt
+    hwloc
+  ];
 
   installPhase = ''
     mkdir $out