diff --git a/.github/workflows/shellcheck-dev.yml b/.github/workflows/shellcheck-dev.yml
new file mode 100644
index 0000000..3af277f
--- /dev/null
+++ b/.github/workflows/shellcheck-dev.yml
@@ -0,0 +1,20 @@
+name: shellcheck-dev
+
+on:
+  push:
+    branches:
+      - '*'
+      - '!master'
+
+jobs:
+  shellcheck:
+    name: shellcheck
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Run ShellCheck
+      uses: ludeeus/action-shellcheck@master
+      env:
+        SHELLCHECK_OPTS: -x
+      with:
+        additional_files: 'builder'
\ No newline at end of file
diff --git a/.github/workflows/shellcheck-master.yml b/.github/workflows/shellcheck-master.yml
new file mode 100644
index 0000000..6c381aa
--- /dev/null
+++ b/.github/workflows/shellcheck-master.yml
@@ -0,0 +1,19 @@
+name: shellcheck
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  shellcheck:
+    name: shellcheck
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Run ShellCheck
+      uses: ludeeus/action-shellcheck@master
+      env:
+        SHELLCHECK_OPTS: -x
+      with:
+        additional_files: 'builder'
\ No newline at end of file
diff --git a/.shellcheck/build.cfg b/.shellcheck/build.cfg
new file mode 100644
index 0000000..0e9cc14
--- /dev/null
+++ b/.shellcheck/build.cfg
@@ -0,0 +1,2 @@
+PackageBuildOrder="SomePackageName SomePackageNameMut"
+PackageUpload="SomePackageName SomePackageNameMut"
diff --git a/.shellcheck/test.cfg b/.shellcheck/test.cfg
new file mode 100644
index 0000000..dc9a98f
--- /dev/null
+++ b/.shellcheck/test.cfg
@@ -0,0 +1,31 @@
+# Test parameters 
+
+# Map:
+Map="KF-Nuked"
+
+# Game:
+# Survival:       KFGameContent.KFGameInfo_Survival
+# WeeklyOutbreak: KFGameContent.KFGameInfo_WeeklySurvival
+# Endless:        KFGameContent.KFGameInfo_Endless
+# Objective:      KFGameContent.KFGameInfo_Objective
+# Versus:         KFGameContent.KFGameInfo_VersusSurvival
+Game="KFGameContent.KFGameInfo_Survival"
+
+# Difficulty:
+# Normal:         0
+# Hard:           1
+# Suicide:        2
+# Hell:           3
+Difficulty="0"
+
+# GameLength:
+# 4  waves:       0
+# 7  waves:       1
+# 10 waves:       2
+GameLength="0"
+
+# Mutators
+Mutators="SomePackageName.SomePackageNameMut"
+
+# Additional parameters
+Args=""
diff --git a/builder b/builder
index 3a0b19f..5b9a38e 100644
--- a/builder
+++ b/builder
@@ -13,7 +13,7 @@ ScriptName=$(basename "$0")
 ScriptDir=$(dirname "$ScriptFullname")
 
 # Useful things
-source "$ScriptDir/helper.lib"
+source "$ScriptDir/common.lib"
 
 # Common
 SteamPath=$(reg_readkey "HKCU\Software\Valve\Steam" "SteamPath")
@@ -38,8 +38,8 @@ MutSource="$ScriptDir/.."
 MutPubContent="$MutSource/PublicationContent"
 MutConfig="$MutSource/Config"
 MutLocalization="$MutSource/Localization"
-MutBuildConfig="$MutSource/build.ini" # not ini at all but who cares? :D
-MutTestConfig="$MutSource/test.ini"
+MutBuildConfig="$MutSource/build.cfg"
+MutTestConfig="$MutSource/test.cfg"
 
 # Steam workshop upload filesystem
 KFUnpublishBrewedPC="$KFUnpublish/BrewedPC"
@@ -127,7 +127,7 @@ function read_build_settings ()
 	if ! [[ -f "$MutBuildConfig" ]]; then init_build; fi
 	
 	if bash -n "$MutBuildConfig"; then
-		# shellcheck source=./.shellcheck/build.ini
+		# shellcheck source=./.shellcheck/build.cfg
 		source "$MutBuildConfig"
 	else
 		echo "$MutBuildConfig broken! Check this file before continue or create new one using $0 --init-build"
@@ -140,7 +140,7 @@ function read_test_settings ()
 	if ! [[ -f "$MutTestConfig" ]]; then init_test;	fi
 	
 	if bash -n "$MutTestConfig"; then
-		# shellcheck source=./.shellcheck/test.ini
+		# shellcheck source=./.shellcheck/test.cfg
 		source "$MutTestConfig"
 	else
 		echo "$MutTestConfig broken! Check this file before continue or create new one using $0 --init-test"
diff --git a/helper.lib b/common.lib
similarity index 100%
rename from helper.lib
rename to common.lib