diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8aa72f2..a78c6ee 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,7 +17,7 @@ jobs:
   build:
     timeout-minutes: 600
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
         include: [
           { msystem: ucrt64, runner: windows-2022 },
diff --git a/ci-build.sh b/ci-build.sh
index 5f3471a..bb8e37f 100755
--- a/ci-build.sh
+++ b/ci-build.sh
@@ -66,7 +66,7 @@ for package in "${packages[@]}"; do
     #execute "Installing build dependencies for $package" makepkg-mingw -seoc --noconfirm
     #rm -fv /${MINGW_ARCH}/lib/*.dll.a
 
-    execute 'Building binary' makepkg-mingw --noconfirm --noprogressbar --nocheck --skippgpcheck --syncdeps --rmdeps --cleanbuild
+    execute 'Building binary' makepkg-mingw --noconfirm --noprogressbar --skippgpcheck --syncdeps --rmdeps --cleanbuild
     #MINGW_ARCH=mingw64 execute 'Building source' makepkg-mingw --noconfirm --noprogressbar --skippgpcheck --allsource
     execute 'List output contents' ls -ltr
     execute 'Installing' yes:pacman --noprogressbar --upgrade --noconfirm *.pkg.tar.xz
diff --git a/mingw-w64-r-devel/.gitignore b/mingw-w64-r-devel/.gitignore
new file mode 100644
index 0000000..ca80692
--- /dev/null
+++ b/mingw-w64-r-devel/.gitignore
@@ -0,0 +1,4 @@
+*.zip
+*.tar.gz
+pkg
+src
diff --git a/mingw-w64-r-devel/PKGBUILD b/mingw-w64-r-devel/PKGBUILD
new file mode 100644
index 0000000..a55f07d
--- /dev/null
+++ b/mingw-w64-r-devel/PKGBUILD
@@ -0,0 +1,83 @@
+# Maintainer: Gore Liu <goreliu@126.com>
+
+_realname=r-devel
+pkgbase=mingw-w64-${_realname}
+pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}")
+pkgver=4.3.9000
+pkgrel=1
+pkgdesc="Software environment for statistical computing (mingw-w64)"
+arch=('any')
+mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32' 'clangarm64')
+url='https://www.r-project.org/'
+license=('GPL-2.0-or-later')
+makedepends=("${MINGW_PACKAGE_PREFIX}-cc"
+             "${MINGW_PACKAGE_PREFIX}-fc"
+             "${MINGW_PACKAGE_PREFIX}-pkgconf"
+             "texinfo"
+             "texinfo-tex")
+depends=("${MINGW_PACKAGE_PREFIX}-gcc-libs"
+         "${MINGW_PACKAGE_PREFIX}-bzip2"
+         "${MINGW_PACKAGE_PREFIX}-cairo"
+         "${MINGW_PACKAGE_PREFIX}-curl"
+         "${MINGW_PACKAGE_PREFIX}-icu"
+         "${MINGW_PACKAGE_PREFIX}-libjpeg-turbo"
+         "${MINGW_PACKAGE_PREFIX}-libpng"
+         "${MINGW_PACKAGE_PREFIX}-libtiff"
+         "${MINGW_PACKAGE_PREFIX}-omp"
+         "${MINGW_PACKAGE_PREFIX}-pcre2"
+         "${MINGW_PACKAGE_PREFIX}-tk"
+         "${MINGW_PACKAGE_PREFIX}-xz"
+         "${MINGW_PACKAGE_PREFIX}-zlib")
+checkdepends=("diffutils"
+              "unzip")
+source=("https://cran.r-project.org/src/base-prerelease/R-devel.tar.gz")
+#source=("R-devel.tar.gz::https://cran.r-project.org/src/base-prerelease/R-devel_2023-12-27_r85742.tar.gz")
+sha256sums=('SKIP')
+noextract=(R-devel.tar.gz)
+
+prepare() {
+  rm -rf ${srcdir}/${_realname}-${pkgver}
+  mkdir ${srcdir}/${_realname}-${pkgver}
+  MSYS="winsymlinks:lnk" tar -xf "R-devel.tar.gz" -C ${srcdir}/${_realname}-${pkgver} --strip-components=1
+
+  export PATH="$PATH:$(cygpath $LOCALAPPDATA)/Programs/MiKTeX/miktex/bin/x64:/c/progra~1/MiKTeX/miktex/bin/x64"
+  echo "PATH: $PATH"
+  texindex --version
+  texi2any --version
+  make --version
+  perl --version
+}
+
+build() {
+  rm -Rf build-${MSYSTEM}
+  MSYS="winsymlinks:lnk" cp -Rf ${srcdir}/${_realname}-${pkgver} build-${MSYSTEM}
+  cd build-${MSYSTEM}/src/gnuwin32
+  echo "WIN =" > MkRules.local
+  echo "ICU_LIBS = $(pkg-config --libs --static icu-i18n)" >> MkRules.local
+  echo "CURL_LIBS = $(pkg-config --libs --static libcurl)" >> MkRules.local
+  echo "CAIRO_LIBS = \"$(pkg-config --libs --static cairo)\"" >> MkRules.local
+  echo "CAIRO_CPPFLAGS = \"$(pkg-config --cflags --static cairo)\"" >> MkRules.local
+  if [[ ${MSYSTEM} == CLANG* ]]; then
+    echo "USE_LLVM = 1" >> MkRules.local
+  fi
+  cat MkRules.local
+  make all
+  make cairodevices
+  make recommended
+}
+
+check() {
+  export MY_TCLTK="${MINGW_PREFIX}/lib"
+  cd ${srcdir}/build-${MSYSTEM}/src/gnuwin32
+  make check || true
+}
+
+package() {
+  cd ${srcdir}/build-${MSYSTEM}/src/gnuwin32/installer
+  sed -i '/manual/d' Makefile
+  sed -i '/GW_INFO_FILES/d' Makefile
+  sed -i '/dosfiles.zip/d' Makefile
+  make imagedir
+  mkdir -p ${pkgdir}${MINGW_PREFIX}
+  cp -Rv R-devel ${pkgdir}${MINGW_PREFIX}/R
+}
diff --git a/pacman.conf b/pacman.conf
index 3629bec..d4bda8a 100644
--- a/pacman.conf
+++ b/pacman.conf
@@ -70,30 +70,6 @@ LocalFileSigLevel = Optional
 # Server = https://repo.msys2.org/staging/
 # SigLevel = Never
 
-[ucrt64-toolchains]
-Server = https://ftp.opencpu.org/msys2/ucrt64-toolchains
-SigLevel = Never
-
-[clang64-toolchains]
-Server = https://ftp.opencpu.org/msys2/clang64-toolchains
-SigLevel = Never
-
-[clangarm64-toolchains]
-Server = https://ftp.opencpu.org/msys2/clangarm64-toolchains
-SigLevel = Never
-
-[ucrt64-libs]
-Server = https://ftp.opencpu.org/msys2/ucrt64-libs
-SigLevel = Never
-
-[clang64-libs]
-Server = https://ftp.opencpu.org/msys2/clang64-libs
-SigLevel = Never
-
-[clangarm64-libs]
-Server = https://ftp.opencpu.org/msys2/clangarm64-libs
-SigLevel = Never
-
 [ucrt64]
 Server = https://repo.msys2.org/mingw/ucrt64/
 SigLevel = Never