diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8d5e71b..4f6e605 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,6 @@ option(WITH_SCANNER "Enable webcam QR scanner" OFF)
 list(INSERT CMAKE_MODULE_PATH 0 "${CMAKE_SOURCE_DIR}/cmake")
 include(CheckCCompilerFlag)
 include(CheckCXXCompilerFlag)
-include(CheckLinkerFlag)
 include(FetchContent)
 include(FindCcache)
 include(CheckIncludeFile)
@@ -103,11 +102,9 @@ set(HIDAPI_FOUND OFF)
 find_package(QREncode REQUIRED)
 
 # Qr scanner
-if (WITH_SCANNER)
-    find_package(ZBAR REQUIRED)
-    message(STATUS "libzbar: include dir at ${ZBAR_INCLUDE_DIR}")
-    message(STATUS "libzbar: libraries at ${ZBAR_LIBRARIES}")
-endif()
+find_package(ZBAR REQUIRED)
+message(STATUS "libzbar: include dir at ${ZBAR_INCLUDE_DIR}")
+message(STATUS "libzbar: libraries at ${ZBAR_LIBRARIES}")
 
 # Tevador 14 word Monero seed
 find_package(monero-seed CONFIG)
@@ -181,11 +178,6 @@ if(TOR_BIN)
         execute_process(COMMAND bash -c "touch ${CMAKE_CURRENT_SOURCE_DIR}/src/tor/libevent-2.1.7.dylib")
     endif()
 
-    execute_process(COMMAND bash -c "${TOR_BIN} --version --quiet" OUTPUT_STRIP_TRAILING_WHITESPACE OUTPUT_VARIABLE out RESULT_VARIABLE ret)
-    if (ret EQUAL "0")
-        string(REGEX MATCH "[0-9]+\.[0-9]+\.[0-9]+\.[0-9]" version ${out})
-        set(TOR_VERSION "${version}")
-    endif()
     message(STATUS "Embedded Tor version: ${TOR_VERSION}")
     configure_file("cmake/config-feather.h.cmake" "${CMAKE_CURRENT_SOURCE_DIR}/src/config-feather.h")
 
diff --git a/Dockerfile b/Dockerfile
index c24034c..793cda0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 # Feather build flags
 ENV CHECK_UPDATES=ON
 ENV WITH_SCANNER=ON
+ENV TOR_VERSION=0.4.6.6
 
 COPY --from=featherwallet/feather-deps:linux-beta-8 /deps /deps
 COPY --from=featherwallet/feather-deps:linux-beta-8 /var/cache/apt/archives /archives
@@ -230,7 +231,7 @@ RUN git clone -b v1.2.11 --depth 1 https://github.com/madler/zlib && \
 # Tor: Optional for Feather (-DTOR_BIN)
 # Binary can be embedded in Feather
 ENV TOR_BIN=/usr/local/tor/bin/tor
-RUN git clone -b tor-0.4.6.6 --depth 1 https://git.torproject.org/tor.git && \
+RUN git clone -b tor-$TOR_VERSION --depth 1 https://git.torproject.org/tor.git && \
     cd tor && \
     git reset --hard 60d1fb3d37274e29e9e88620d77e1636ef922561 && \
     ./autogen.sh && \
diff --git a/Dockerfile.windows b/Dockerfile.windows
index fedc93d..8ee9992 100644
--- a/Dockerfile.windows
+++ b/Dockerfile.windows
@@ -11,6 +11,7 @@ ENV WITH_SCANNER=ON
 
 ENV OPENSSL_ROOT_DIR=/usr/local/openssl/
 ENV TOR_BIN=/usr/local/tor/bin/tor.exe
+ENV TOR_VERSION=0.4.6.6
 
 RUN apt update && \
     apt install -y \
@@ -154,7 +155,7 @@ RUN wget https://github.com/libevent/libevent/releases/download/release-2.1.11-s
     make -j$THREADS install && \
     rm -rf $(pwd)
 
-RUN git clone -b tor-0.4.6.6 --depth 1 https://git.torproject.org/tor.git && \
+RUN git clone -b tor-$TOR_VERSION --depth 1 https://git.torproject.org/tor.git && \
     cd tor  && \
     git reset --hard 60d1fb3d37274e29e9e88620d77e1636ef922561 && \
     ./autogen.sh && \
@@ -197,7 +198,8 @@ RUN git clone https://github.com/nih-at/libzip.git && \
           -DBUILD_SHARED_LIBS=OFF \
           -DCMAKE_PREFIX_PATH=/usr/x86_64-w64-mingw32 && \
     make -j$THREADS && \
-    make -j$THREADS install
+    make -j$THREADS install && \
+    rm -rf $(pwd)
 
 RUN git clone -b 0.23.92 --depth 1 --recursive https://github.com/mchehab/zbar.git && \
     cd zbar && \
@@ -205,4 +207,5 @@ RUN git clone -b 0.23.92 --depth 1 --recursive https://github.com/mchehab/zbar.g
     autoreconf -vfi && \
     ./configure --enable-static --disable-shared --without-imagemagick --disable-video --without-xv --with-gtk=no --with-python=no --enable-doc=no --host=x86_64-w64-mingw32 && \
     make -j$THREADS && \
-    make install
\ No newline at end of file
+    make install && \
+    rm -rf $(pwd)
\ No newline at end of file
diff --git a/Makefile b/Makefile
index c17ab0e..10a28ae 100644
--- a/Makefile
+++ b/Makefile
@@ -1,30 +1,5 @@
-# Copyright (c) 2014-2021, The Monero Project
-#
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without modification, are
-# permitted provided that the following conditions are met:
-#
-# 1. Redistributions of source code must retain the above copyright notice, this list of
-#    conditions and the following disclaimer.
-#
-# 2. Redistributions in binary form must reproduce the above copyright notice, this list
-#    of conditions and the following disclaimer in the documentation and/or other
-#    materials provided with the distribution.
-#
-# 3. Neither the name of the copyright holder nor the names of its contributors may be
-#    used to endorse or promote products derived from this software without specific
-#    prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
-# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
-# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
-# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright (c) 2020-2021, The Monero Project.
 
 CMAKEFLAGS = \
 	-DARCH=x86_64 \
@@ -43,21 +18,23 @@ CMAKEFLAGS = \
 	$(CMAKEFLAGS_EXTRA)
 
 release-static: CMAKEFLAGS += -DBUILD_TAG="linux-x64"
-release-static: CMAKEFLAGS += -DTOR_BIN=$(or ${TOR_BIN},OFF)
+release-static: CMAKEFLAGS += -DTOR_BIN=$(or ${TOR_BIN}, Off)
+release-static: CMAKEFLAGS += -DTOR_VERSION=$(or ${TOR_VERSION}, Off)
 release-static: CMAKEFLAGS += -DCHECK_UPDATES=$(or ${CHECK_UPDATES}, Off)
 release-static: CMAKEFLAGS += -DWITH_SCANNER=$(or ${WITH_SCANNER}, Off)
 release-static: CMAKEFLAGS += -DCMAKE_BUILD_TYPE=Release
-release-static: CMAKEFLAGS += -DREPRODUCIBLE=$(or ${SOURCE_DATE_EPOCH},OFF)
+release-static: CMAKEFLAGS += -DREPRODUCIBLE=$(or ${SOURCE_DATE_EPOCH}, Off)
 release-static:
 	cmake -Bbuild $(CMAKEFLAGS)
 	$(MAKE) -Cbuild
 
 depends:
 	mkdir -p build/$(target)/release
-	cd build/$(target)/release && cmake -D STATIC=ON -DREPRODUCIBLE=$(or ${SOURCE_DATE_EPOCH},OFF) -DTOR_VERSION=$(or ${TOR_VERSION}, OFF) -DTOR_BIN=$(or ${TOR_BIN},OFF) -DCHECK_UPDATES=$(or ${CHECK_UPDATES}, OFF) -D DEV_MODE=$(or ${DEV_MODE},OFF) -D BUILD_TAG=$(tag) -D CMAKE_BUILD_TYPE=Release -D CMAKE_TOOLCHAIN_FILE=$(root)/$(target)/share/toolchain.cmake ../../.. && $(MAKE)
+	cd build/$(target)/release && cmake -D STATIC=ON -DREPRODUCIBLE=$(or ${SOURCE_DATE_EPOCH},OFF) -DTOR_VERSION=$(or ${TOR_VERSION}, OFF) -DTOR_BIN=$(or ${TOR_BIN},OFF) -DCHECK_UPDATES=$(or ${CHECK_UPDATES}, OFF) -DWITH_SCANNER=$(or ${WITH_SCANNER}, Off) -D DEV_MODE=$(or ${DEV_MODE},OFF) -D BUILD_TAG=$(tag) -D CMAKE_BUILD_TYPE=Release -D CMAKE_TOOLCHAIN_FILE=$(root)/$(target)/share/toolchain.cmake ../../.. && $(MAKE)
 
 mac-release: CMAKEFLAGS += -DSTATIC=Off
-mac-release: CMAKEFLAGS += -DTOR_BIN=$(or ${TOR_BIN},OFF)
+mac-release: CMAKEFLAGS += -DTOR_BIN=$(or ${TOR_BIN}, Off)
+mac-release: CMAKEFLAGS += -DTOR_VERSION=$(or ${TOR_VERSION}, Off)
 mac-release: CMAKEFLAGS += -DCHECK_UPDATES=$(or ${CHECK_UPDATES}, Off)
 mac-release: CMAKEFLAGS += -DWITH_SCANNER=$(or ${WITH_SCANNER}, On)
 mac-release: CMAKEFLAGS += -DBUILD_TAG="mac-x64"
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4c369d8..bb4e6aa 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -57,6 +57,8 @@ file(GLOB SOURCE_FILES
         "qrcode/*.cpp"
         "dialog/*.h"
         "dialog/*.cpp"
+        "qrcode_scanner/QrCodeUtils.cpp"
+        "qrcode_scanner/QrCodeUtils.h"
         )
 
 if (WITH_SCANNER)
@@ -141,11 +143,11 @@ target_include_directories(feather PUBLIC
         ${Qt5WebSockets_INCLUDE_DIRS}
         ${ZLIB_INCLUDE_DIRS}
         ${LIBZIP_INCLUDE_DIRS}
+        ${ZBAR_INCLUDE_DIR}
         )
 
 if(WITH_SCANNER)
     target_include_directories(feather PUBLIC
-            ${ZBAR_INCLUDE_DIR}
             ${Qt5Multimedia_INCLUDE_DIRS}
             ${Qt5MultimediaWidgets_INCLUDE_DIRS}
     )
@@ -248,6 +250,7 @@ target_link_libraries(feather
         ${QRENCODE_LIBRARY}
         ${ZLIB_LIBRARIES}
         ${LIBZIP_LIBRARIES}
+        ${ZBAR_LIBRARIES}
         )
 
 if(DEVICE_TREZOR_READY)
@@ -258,7 +261,6 @@ if (WITH_SCANNER)
     target_link_libraries(feather
             Qt5::Multimedia
             Qt5::MultimediaWidgets
-            ${ZBAR_LIBRARIES}
     )
 endif()