diff --git a/helper/compile.js b/helper/compile.js
index 864a491..3824591 100755
--- a/helper/compile.js
+++ b/helper/compile.js
@@ -1,31 +1,18 @@
 const util = require('util');
 const exec = util.promisify(require('child_process').exec);
 
-const { hashElement } = require('folder-hash');
- 
-const options = {
-    folders: { exclude: ['.*', 'node_modules', 'test_coverage'] },
-    files: { include: ['*.cpp', '*.hpp'] }
-};
-
-function eosCompile(params){
-  this.compile = async function(){
-    for(contract of Object.keys(params.contracts)){
-      var folder_hash = (await hashElement(`${params.root_path}/src/${contract}`, options)).hash
-      if(params.contracts[contract].compiled_hash && params.contracts[contract].compiled_hash == folder_hash){
-        console.log(`${stdout}\nCOMPILED: "${contract}" - already compiled, skipping`)
-      }else{
-        var command = `cd ${params.root_path}/src/${contract} && eosio-cpp -o ${contract}.wasm ${contract}.cpp --abigen`
-        console.log("Executing: "+command)
-        var { stdout, stderr } = await exec(command);
-        if(stderr)
-          throw new Error(stderr)
-        console.log(`${stdout}\nCOMPILED: "${contract}" success`)
-        params.contracts[contract].compiled_hash = (await hashElement(`${params.root_path}/src/${contract}`, options)).hash
-      }
+function eosCompile (params) {
+  this.compile = async function () {
+    for (contract of Object.keys (params.contracts)) {
+      var command = `cd ${params.root_path}/src/${contract} && make --quiet`
+      console.log ("Executing: "+command)
+      var { stdout, stderr } = await exec (command);
+      if (stderr)
+        throw new Error (stderr)
+      console.log (`${stdout}\nCOMPILED: "${contract}" success`)
     }
-    return(true)
+    return (true)
   }
 }
 
-module.exports = eosCompile;
\ No newline at end of file
+module.exports = eosCompile;
diff --git a/reset_env.sh b/reset_env.sh
index 2c17ec7..270798d 100755
--- a/reset_env.sh
+++ b/reset_env.sh
@@ -1,41 +1,57 @@
 #!/bin/sh
 
-# Variables
-DataDIR=/tmp/data
-ConfigDIR=/tmp/config
-LogFile=/tmp/nodeos.log
-
-# Show script info when launched
+#******************************************************************************#
+#       Script variables                                                       #
+#******************************************************************************#
+ConfigDIR="/tmp/config"
+DataDIR="/tmp/data"
+LogFile="/tmp/nodeos.log"
+
+#******************************************************************************#
+#       Show script info when launched                                         #
+#******************************************************************************#
 InfoMessage() {
+
+	# Show status message to a user
 	echo "> Starting a fresh nodeos"
+
+	# Check if we use virtual Ubuntu machine on Windows
 	if grep -q Microsoft /proc/version; then
+
+		# Set correct directory for Windows
 		dir="$(where.exe README.md  | sed 's=\\=\\\\=g'| sed 's/README.md/\src\:\/home\/src/' | sed 's/\r//')"
 		echo "Ubuntu on Windows: $dir"
 	else
+
+		# Set correct directory for Linux
 		dir="`pwd`/src:/home/src"
-		echo "native Linux: $dir"
+		echo "Native Linux: $dir"
 	fi
 }
 
-# Remove data and configuration files are used by local nodeos (not docker version)
+#******************************************************************************#
+#       Remove data and config files are used by local nodeos                  #
+#******************************************************************************#
 RemoveLocalFiles() {
-	rm -fr $DataDIR
 	rm -fr $ConfigDIR
+	rm -fr $DataDIR
 	rm -f $LogFile
 }
 
-# Run local instance of keosd and nodeos
+#******************************************************************************#
+#       Run local instance of keosd and nodeos                                 #
+#******************************************************************************#
 RunLocal() {
 
-	# Remove local files before go further
-	RemoveLocalFiles
-
 	# Kill already running keosd
 	pkill keosd
 
 	# Kill already running nodeos
 	pkill nodeos
 
+	# Remove local files before go further
+	RemoveLocalFiles
+
 	# Start a new instance of keosd
 	keosd --http-server-address=0.0.0.0:5555 &
 
@@ -46,8 +62,8 @@ RunLocal() {
 	--plugin eosio::http_plugin \
 	--plugin eosio::history_plugin \
 	--plugin eosio::history_api_plugin \
+	--config-dir $ConfigDIR \
 	--data-dir $DataDIR \
-	--config-dir $ConfigDIR/tmp/config \
 	--access-control-allow-origin=* \
 	--contracts-console \
 	--http-validate-host=false \
@@ -55,7 +71,9 @@ RunLocal() {
 	--filter-on='*' >> $LogFile 2>&1 &
 }
 
-# Run docker instance of keosd and nodeos
+#******************************************************************************#
+#       Run docker instance of keosd and nodeos                                #
+#******************************************************************************#
 RunDocked() {
 
 	# Stop running eosio docker container
@@ -77,13 +95,15 @@ RunDocked() {
 	  "keosd --http-server-address=0.0.0.0:5555 & exec nodeos -e -p eosio --plugin eosio::producer_plugin --plugin eosio::chain_api_plugin --plugin eosio::history_plugin --plugin eosio::history_api_plugin --plugin eosio::http_plugin -d /mnt/dev/data --config-dir /mnt/dev/config --http-server-address=0.0.0.0:7777 --access-control-allow-origin=* --contracts-console --http-validate-host=false --filter-on='*'"
 }
 
+#******************************************************************************#
+#       Script main section                                                    #
+#******************************************************************************#
+
 # Show program info message
 InfoMessage
 
 # Restart keosd and nodeos using local instance or docked instance
-while getopts "ld" opts; do
-	case ${opts} in
-		l) RunLocal ;;
-		d) RunDocked ;;
-	esac
-done
+case $1 in
+	-l) RunLocal ;;
+	-d) RunDocked ;;
+esac
diff --git a/src/hello/CMakeLists.txt b/src/hello/CMakeLists.txt
deleted file mode 100644
index 00ab99e..0000000
--- a/src/hello/CMakeLists.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-file(GLOB ABI_FILES "*.abi")
-configure_file("${ABI_FILES}" "${CMAKE_CURRENT_BINARY_DIR}" COPYONLY)
-
-add_wast_executable(TARGET eosio.token
-  INCLUDE_FOLDERS "${STANDARD_INCLUDE_FOLDERS}"
-  LIBRARIES libc++ libc eosiolib
-  DESTINATION_FOLDER ${CMAKE_CURRENT_BINARY_DIR}
-)
diff --git a/src/hello/Makefile b/src/hello/Makefile
new file mode 100644
index 0000000..27f2088
--- /dev/null
+++ b/src/hello/Makefile
@@ -0,0 +1,45 @@
+################################################################################
+# Encoding: UTF-8                                                  Tab size: 4 #
+#                                                                              #
+#                                   MAKEFILE                                   #
+#                                                                              #
+# Ordnung muss sein!                             Copyright (C) 2018, azarus.io #
+################################################################################
+
+#******************************************************************************#
+#       Compiler configuration                                                 #
+#******************************************************************************#
+CXX			:= eosio-cpp
+CXXFLAGS	:= -Wall -O3 -fcolor-diagnostics -finline-functions -lto-opt=O3 -abigen
+
+#******************************************************************************#
+#       Makefile variables                                                     #
+#******************************************************************************#
+targets		:= hello.wasm hello.abi
+
+#******************************************************************************#
+#       Makefile targets                                                       #
+#******************************************************************************#
+.SUFFIXES:
+.PHONY: clean distclean mostlyclean maintainer-clean
+
+all: $(targets)
+
+%.wasm: %.cpp
+	$(CXX) $(CXXFLAGS) $? -o $@
+
+clean:
+	-rm -f $(targets)
+
+distclean:
+	-rm -f $(targets)
+
+mostlyclean:
+	-rm -f $(targets)
+
+maintainer-clean:
+	-rm -f $(targets)
+
+################################################################################
+#                                 END OF FILE                                  #
+################################################################################
diff --git a/src/hello/hello.abi b/src/hello/hello.abi
deleted file mode 100644
index 86f6f86..0000000
--- a/src/hello/hello.abi
+++ /dev/null
@@ -1,28 +0,0 @@
-{
-    "____comment": "This file was generated with eosio-abigen. DO NOT EDIT Wed Jan  9 18:06:12 2019",
-    "version": "eosio::abi/1.1",
-    "structs": [
-        {
-            "name": "hi",
-            "base": "",
-            "fields": [
-                {
-                    "name": "user",
-                    "type": "name"
-                }
-            ]
-        }
-    ],
-    "types": [],
-    "actions": [
-        {
-            "name": "hi",
-            "type": "hi",
-            "ricardian_contract": ""
-        }
-    ],
-    "tables": [],
-    "ricardian_clauses": [],
-    "variants": [],
-    "abi_extensions": []
-}
\ No newline at end of file
diff --git a/src/hello/hello.wasm b/src/hello/hello.wasm
deleted file mode 100755
index f6557c4..0000000
Binary files a/src/hello/hello.wasm and /dev/null differ