diff --git a/.gitattributes b/.gitattributes
index b0121f508..2e62a4e59 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,2 @@
-* text=auto
 *.cpp diff=cpp
 *.h diff=cpp
diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index 628b36f03..cde9eca43 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -21,7 +21,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v2
     - name: Set up JDK 11
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0441aeaa1..8f1a423c4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,7 +9,7 @@ stages:
   - deploy
 
 variables:
-  MINETEST_GAME_REPO: "https://github.com/minetest/minetest_game.git"
+  MINETEST_GAME_REPO: "https://codeberg.org/minenux/minetest-game-minetest.git"
   CONTAINER_IMAGE: registry.gitlab.com/$CI_PROJECT_PATH
 
 .build_template:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4c626c787..dc9dc8c94 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.0)
 
 cmake_policy(SET CMP0025 OLD)
 
@@ -6,9 +6,8 @@ cmake_policy(SET CMP0025 OLD)
 project(multicraft)
 set(PROJECT_NAME_CAPITALIZED "MultiCraft")
 
-set(CMAKE_CXX_STANDARD 14)
-set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
-set(GCC_MINIMUM_VERSION "5.1")
+set(CMAKE_CXX_STANDARD 11)
+set(GCC_MINIMUM_VERSION "4.7")
 set(CLANG_MINIMUM_VERSION "3.5")
 
 # Also remember to set PROTOCOL_VERSION in network/networkprotocol.h when releasing
@@ -20,7 +19,7 @@ set(VERSION_EXTRA "" CACHE STRING "Stuff to append to version string")
 # Change to false for releases
 set(DEVELOPMENT_BUILD FALSE)
 
-set(ENABLE_UPDATE_CHECKER (NOT ${DEVELOPMENT_BUILD}) CACHE BOOL
+set(ENABLE_UPDATE_CHECKER FALSE CACHE BOOL
 	"Whether to enable update checks by default")
 
 set(VERSION_STRING "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
diff --git a/Dockerfile b/Dockerfile
index 3d235cc70..ae7645fe9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:3.14
 
-ENV MINETEST_GAME_VERSION master
+ENV MINETEST_GAME_VERSION original-2.0.3
 
 COPY .git /usr/src/multicraft/.git
 COPY CMakeLists.txt /usr/src/multicraft/CMakeLists.txt
@@ -22,7 +22,7 @@ RUN apk add --no-cache git build-base irrlicht-dev cmake bzip2-dev libpng-dev \
 		jpeg-dev libxxf86vm-dev mesa-dev sqlite-dev libogg-dev \
 		libvorbis-dev openal-soft-dev curl-dev freetype-dev zlib-dev \
 		gmp-dev jsoncpp-dev postgresql-dev luajit-dev ca-certificates && \
-	git clone --depth=1 -b ${MINETEST_GAME_VERSION} https://github.com/minetest/minetest_game.git ./games/minetest_game && \
+	git clone --depth=1 -b ${MINETEST_GAME_VERSION} https://codeberg.org/minenux/minetest-game-minetest.git ./games/minetest_game && \
 	rm -fr ./games/minetest_game/.git
 
 WORKDIR /usr/src/
diff --git a/lib/lua/CMakeLists.txt b/lib/lua/CMakeLists.txt
index 5d0dc0f70..4dc481985 100644
--- a/lib/lua/CMakeLists.txt
+++ b/lib/lua/CMakeLists.txt
@@ -62,7 +62,7 @@ if(CMAKE_COMPILER_IS_GNUCC)
 	set(CMAKE_C_FLAGS_PROFILE        "${CMAKE_C_FLAGS_PROFILE}     -O1 -g")
 	set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_WITHDEBINFO} -O2 -g")
 endif(CMAKE_COMPILER_IS_GNUCC)
-
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 
 add_subdirectory(src build)
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 67c74f253..c925d348e 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -737,6 +737,7 @@ if(MSVC)
 	endif()
 else()
 	# GCC or compatible compilers such as Clang
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 	if(WARN_ALL)
 		set(RELEASE_WARNING_FLAGS "-Wall")
 	else()