diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7a278e070e82ecff35cd505b46bf326eb2be2556..52b047dc36bab5dff310d07f12dd2098cd870c95 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -15,16 +15,28 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: sh ./ci/linux/build-x86_64-debug.sh
-      - name: Print Version
-        run: echo "$(build-debug/stage3-debug/bin/zig version)"
+        run: sh ci/x86_64-linux-debug.sh
   x86_64-linux-release:
     runs-on: [self-hosted, Linux, x86_64]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: sh ./ci/linux/build-x86_64-release.sh
+        run: sh ci/x86_64-linux-release.sh
+  aarch64-linux-debug:
+    runs-on: [self-hosted, Linux, aarch64]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Build and Test
+        run: sh ci/aarch64-linux-debug.sh
+  aarch64-linux-release:
+    runs-on: [self-hosted, Linux, aarch64]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Build and Test
+        run: sh ci/aarch64-linux-release.sh
   x86_64-macos:
     runs-on: "macos-11"
     env: 
@@ -33,23 +45,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: ./ci/macos/build-x86_64.sh
-  x86_64-windows:
-    runs-on: windows-latest
-    env: 
-      ARCH: "x86_64"
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Build and Test
-        run: ./ci/windows/build.ps1
-  aarch64-linux:
-    runs-on: [self-hosted, Linux, aarch64]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Build and Test
-        run: sh ./ci/linux/build-aarch64.sh
+        run: ci/x86_64-macos.sh
   aarch64-macos:
     runs-on: [self-hosted, macOS, aarch64]
     env: 
@@ -58,4 +54,13 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: ./ci/macos/build-aarch64.sh
+        run: ci/aarch64-macos.sh
+  x86_64-windows:
+    runs-on: windows-latest
+    env: 
+      ARCH: "x86_64"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Build and Test
+        run: ci/x86_64-windows.ps1
diff --git a/ci/aarch64-linux-debug.sh b/ci/aarch64-linux-debug.sh
new file mode 100644
index 0000000000000000000000000000000000000000..13bcef5aa9daff7aa4658b5343759ddaeb91b040
--- /dev/null
+++ b/ci/aarch64-linux-debug.sh
@@ -0,0 +1,66 @@
+#!/bin/sh
+
+# Requires cmake ninja-build
+
+set -x
+set -e
+
+ARCH="$(uname -m)"
+TARGET="$ARCH-linux-musl"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.11.0-dev.256+271cc52a1"
+PREFIX="$HOME/deps/$CACHE_BASENAME"
+ZIG="$PREFIX/bin/zig"
+
+export PATH="$HOME/deps/wasmtime-v2.0.2-$ARCH-linux:$PATH"
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git config core.abbrev 9
+git fetch --unshallow || true
+git fetch --tags
+
+export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
+export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
+
+rm -rf build-debug
+mkdir build-debug
+cd build-debug
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-debug" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Debug \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON \
+  -GNinja
+
+# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
+# so that installation and testing do not get affected by them.
+unset CC
+unset CXX
+
+ninja install
+
+echo "Looking for non-conforming code formatting..."
+stage3-debug/bin/zig fmt --check .. \
+  --exclude ../test/cases/ \
+  --exclude ../build-debug
+
+# simultaneously test building self-hosted without LLVM and with 32-bit arm
+stage3-debug/bin/zig build -Dtarget=arm-linux-musleabihf
+
+# TODO: add -fqemu back to this line
+
+stage3-debug/bin/zig build test docs \
+  -fwasmtime \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+
+# Look for HTML errors.
+tidy --drop-empty-elements no -qe ../zig-cache/langref.html
+
+# Produce the experimental std lib documentation.
+stage3-debug/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/aarch64-linux-release.sh b/ci/aarch64-linux-release.sh
new file mode 100644
index 0000000000000000000000000000000000000000..2f57e06f05a2435bb9e45fb8d4e567d8d719460b
--- /dev/null
+++ b/ci/aarch64-linux-release.sh
@@ -0,0 +1,66 @@
+#!/bin/sh
+
+# Requires cmake ninja-build
+
+set -x
+set -e
+
+ARCH="$(uname -m)"
+TARGET="$ARCH-linux-musl"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.11.0-dev.256+271cc52a1"
+PREFIX="$HOME/deps/$CACHE_BASENAME"
+ZIG="$PREFIX/bin/zig" 
+
+export PATH="$HOME/deps/wasmtime-v2.0.2-$ARCH-linux:$PATH"
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git config core.abbrev 9
+git fetch --unshallow || true
+git fetch --tags
+
+export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
+export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
+
+rm -rf build-release
+mkdir build-release
+cd build-release
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-release" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON \
+  -GNinja
+
+# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
+# so that installation and testing do not get affected by them.
+unset CC
+unset CXX
+
+ninja install
+
+echo "Looking for non-conforming code formatting..."
+stage3-release/bin/zig fmt --check .. \
+  --exclude ../test/cases/ \
+  --exclude ../build-release
+
+# simultaneously test building self-hosted without LLVM and with 32-bit arm
+stage3-release/bin/zig build -Dtarget=arm-linux-musleabihf
+
+# TODO: add -fqemu back to this line
+
+stage3-release/bin/zig build test docs \
+  -fwasmtime \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+
+# Look for HTML errors.
+tidy --drop-empty-elements no -qe ../zig-cache/langref.html
+
+# Produce the experimental std lib documentation.
+stage3-release/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/aarch64-macos.sh b/ci/aarch64-macos.sh
new file mode 100755
index 0000000000000000000000000000000000000000..52f3aad6966e303931c5310d19e9ac7e387d9797
--- /dev/null
+++ b/ci/aarch64-macos.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+set -x
+set -e
+
+# Script assumes the presence of the following:
+# s3cmd 
+
+ZIGDIR="$(pwd)"
+TARGET="$ARCH-macos-none"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.10.0-dev.4560+828735ac0"
+PREFIX="$HOME/$CACHE_BASENAME"
+ZIG="$PREFIX/bin/zig"
+
+cd $ZIGDIR
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git config core.abbrev 9
+git fetch --unshallow || true
+git fetch --tags
+
+mkdir build
+cd build
+PATH="$HOME/local/bin:$PATH" cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-release" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_C_COMPILER="$ZIG;cc;-target;$TARGET;-mcpu=$MCPU" \
+  -DCMAKE_CXX_COMPILER="$ZIG;c++;-target;$TARGET;-mcpu=$MCPU" \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON \
+  -GNinja
+
+$HOME/local/bin/ninja install
+
+stage3-release/bin/zig build test docs \
+  --zig-lib-dir "$(pwd)/../lib" \
+  -Denable-macos-sdk \
+  -Dstatic-llvm \
+  -Dskip-non-native \
+  --search-prefix "$PREFIX"
+
+# Produce the experimental std lib documentation.
+stage3-release/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/linux/build-aarch64.sh b/ci/linux/build-aarch64.sh
deleted file mode 100644
index 2f57e06f05a2435bb9e45fb8d4e567d8d719460b..0000000000000000000000000000000000000000
--- a/ci/linux/build-aarch64.sh
+++ /dev/null
@@ -1,66 +0,0 @@
-#!/bin/sh
-
-# Requires cmake ninja-build
-
-set -x
-set -e
-
-ARCH="$(uname -m)"
-TARGET="$ARCH-linux-musl"
-MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.11.0-dev.256+271cc52a1"
-PREFIX="$HOME/deps/$CACHE_BASENAME"
-ZIG="$PREFIX/bin/zig" 
-
-export PATH="$HOME/deps/wasmtime-v2.0.2-$ARCH-linux:$PATH"
-
-# Make the `zig version` number consistent.
-# This will affect the cmake command below.
-git config core.abbrev 9
-git fetch --unshallow || true
-git fetch --tags
-
-export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
-export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
-
-rm -rf build-release
-mkdir build-release
-cd build-release
-cmake .. \
-  -DCMAKE_INSTALL_PREFIX="stage3-release" \
-  -DCMAKE_PREFIX_PATH="$PREFIX" \
-  -DCMAKE_BUILD_TYPE=Release \
-  -DZIG_TARGET_TRIPLE="$TARGET" \
-  -DZIG_TARGET_MCPU="$MCPU" \
-  -DZIG_STATIC=ON \
-  -GNinja
-
-# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
-# so that installation and testing do not get affected by them.
-unset CC
-unset CXX
-
-ninja install
-
-echo "Looking for non-conforming code formatting..."
-stage3-release/bin/zig fmt --check .. \
-  --exclude ../test/cases/ \
-  --exclude ../build-release
-
-# simultaneously test building self-hosted without LLVM and with 32-bit arm
-stage3-release/bin/zig build -Dtarget=arm-linux-musleabihf
-
-# TODO: add -fqemu back to this line
-
-stage3-release/bin/zig build test docs \
-  -fwasmtime \
-  -Dstatic-llvm \
-  -Dtarget=native-native-musl \
-  --search-prefix "$PREFIX" \
-  --zig-lib-dir "$(pwd)/../lib"
-
-# Look for HTML errors.
-tidy --drop-empty-elements no -qe ../zig-cache/langref.html
-
-# Produce the experimental std lib documentation.
-stage3-release/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/linux/build-x86_64-debug.sh b/ci/linux/build-x86_64-debug.sh
deleted file mode 100755
index 053b9ab831008c9771775f58ee44599280f9af35..0000000000000000000000000000000000000000
--- a/ci/linux/build-x86_64-debug.sh
+++ /dev/null
@@ -1,66 +0,0 @@
-#!/bin/sh
-
-# Requires cmake ninja-build
-
-set -x
-set -e
-
-ARCH="$(uname -m)"
-TARGET="$ARCH-linux-musl"
-MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.11.0-dev.256+271cc52a1"
-PREFIX="$HOME/deps/$CACHE_BASENAME"
-ZIG="$PREFIX/bin/zig"
-
-export PATH="$HOME/deps/wasmtime-v2.0.2-$ARCH-linux:$HOME/deps/qemu-linux-x86_64-6.1.0.1/bin:$PATH"
-
-# Make the `zig version` number consistent.
-# This will affect the cmake command below.
-git config core.abbrev 9
-git fetch --unshallow || true
-git fetch --tags
-
-export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
-export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
-
-rm -rf build-debug
-mkdir build-debug
-cd build-debug
-cmake .. \
-  -DCMAKE_INSTALL_PREFIX="stage3-debug" \
-  -DCMAKE_PREFIX_PATH="$PREFIX" \
-  -DCMAKE_BUILD_TYPE=Debug \
-  -DZIG_TARGET_TRIPLE="$TARGET" \
-  -DZIG_TARGET_MCPU="$MCPU" \
-  -DZIG_STATIC=ON \
-  -GNinja
-
-# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
-# so that installation and testing do not get affected by them.
-unset CC
-unset CXX
-
-ninja install
-
-echo "Looking for non-conforming code formatting..."
-stage3-debug/bin/zig fmt --check .. \
-  --exclude ../test/cases/ \
-  --exclude ../build-debug \
-  --exclude ../build-release
-
-# simultaneously test building self-hosted without LLVM and with 32-bit arm
-stage3-debug/bin/zig build -Dtarget=arm-linux-musleabihf
-
-stage3-debug/bin/zig build test docs \
-  -fqemu \
-  -fwasmtime \
-  -Dstatic-llvm \
-  -Dtarget=native-native-musl \
-  --search-prefix "$PREFIX" \
-  --zig-lib-dir "$(pwd)/../lib"
-
-# Look for HTML errors.
-tidy --drop-empty-elements no -qe ../zig-cache/langref.html
-
-# Produce the experimental std lib documentation.
-stage3-debug/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/linux/build-x86_64-release.sh b/ci/linux/build-x86_64-release.sh
deleted file mode 100755
index fbcf86e4182461a7ca6acbe4af83b9d8130c5d18..0000000000000000000000000000000000000000
--- a/ci/linux/build-x86_64-release.sh
+++ /dev/null
@@ -1,82 +0,0 @@
-#!/bin/sh
-
-# Requires cmake ninja-build
-
-set -x
-set -e
-
-ARCH="$(uname -m)"
-TARGET="$ARCH-linux-musl"
-MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.11.0-dev.256+271cc52a1"
-PREFIX="$HOME/deps/$CACHE_BASENAME"
-ZIG="$PREFIX/bin/zig" 
-
-export PATH="$HOME/deps/wasmtime-v2.0.2-$ARCH-linux:$HOME/deps/qemu-linux-x86_64-6.1.0.1/bin:$PATH"
-
-# Make the `zig version` number consistent.
-# This will affect the cmake command below.
-git config core.abbrev 9
-git fetch --unshallow || true
-git fetch --tags
-
-export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
-export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
-
-rm -rf build-release
-mkdir build-release
-cd build-release
-cmake .. \
-  -DCMAKE_INSTALL_PREFIX="stage3-release" \
-  -DCMAKE_PREFIX_PATH="$PREFIX" \
-  -DCMAKE_BUILD_TYPE=Release \
-  -DZIG_TARGET_TRIPLE="$TARGET" \
-  -DZIG_TARGET_MCPU="$MCPU" \
-  -DZIG_STATIC=ON \
-  -GNinja
-
-# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
-# so that installation and testing do not get affected by them.
-unset CC
-unset CXX
-
-ninja install
-
-echo "Looking for non-conforming code formatting..."
-stage3-release/bin/zig fmt --check .. \
-  --exclude ../test/cases/ \
-  --exclude ../build-debug \
-  --exclude ../build-release
-
-# simultaneously test building self-hosted without LLVM and with 32-bit arm
-stage3-release/bin/zig build -Dtarget=arm-linux-musleabihf
-
-stage3-release/bin/zig build test docs \
-  -fqemu \
-  -fwasmtime \
-  -Dstatic-llvm \
-  -Dtarget=native-native-musl \
-  --search-prefix "$PREFIX" \
-  --zig-lib-dir "$(pwd)/../lib"
-
-# Look for HTML errors.
-tidy --drop-empty-elements no -qe ../zig-cache/langref.html
-
-# Produce the experimental std lib documentation.
-stage3-release/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
-
-stage3-release/bin/zig build \
-  --prefix stage4-release \
-  -Denable-llvm \
-  -Denable-stage1 \
-  -Dno-lib \
-  -Drelease \
-  -Dstrip \
-  -Dtarget=$TARGET \
-  -Duse-zig-libcxx \
-  -Dversion-string="$(stage3-release/bin/zig version)"
-
-# diff returns an error code if the files differ.
-echo "If the following command fails, it means nondeterminism has been"
-echo "introduced, making stage3 and stage4 no longer byte-for-byte identical."
-diff stage3-release/bin/zig stage4-release/bin/zig
diff --git a/ci/macos/build-aarch64.sh b/ci/macos/build-aarch64.sh
deleted file mode 100755
index 52f3aad6966e303931c5310d19e9ac7e387d9797..0000000000000000000000000000000000000000
--- a/ci/macos/build-aarch64.sh
+++ /dev/null
@@ -1,47 +0,0 @@
-#!/bin/sh
-
-set -x
-set -e
-
-# Script assumes the presence of the following:
-# s3cmd 
-
-ZIGDIR="$(pwd)"
-TARGET="$ARCH-macos-none"
-MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.10.0-dev.4560+828735ac0"
-PREFIX="$HOME/$CACHE_BASENAME"
-ZIG="$PREFIX/bin/zig"
-
-cd $ZIGDIR
-
-# Make the `zig version` number consistent.
-# This will affect the cmake command below.
-git config core.abbrev 9
-git fetch --unshallow || true
-git fetch --tags
-
-mkdir build
-cd build
-PATH="$HOME/local/bin:$PATH" cmake .. \
-  -DCMAKE_INSTALL_PREFIX="stage3-release" \
-  -DCMAKE_PREFIX_PATH="$PREFIX" \
-  -DCMAKE_BUILD_TYPE=Release \
-  -DCMAKE_C_COMPILER="$ZIG;cc;-target;$TARGET;-mcpu=$MCPU" \
-  -DCMAKE_CXX_COMPILER="$ZIG;c++;-target;$TARGET;-mcpu=$MCPU" \
-  -DZIG_TARGET_TRIPLE="$TARGET" \
-  -DZIG_TARGET_MCPU="$MCPU" \
-  -DZIG_STATIC=ON \
-  -GNinja
-
-$HOME/local/bin/ninja install
-
-stage3-release/bin/zig build test docs \
-  --zig-lib-dir "$(pwd)/../lib" \
-  -Denable-macos-sdk \
-  -Dstatic-llvm \
-  -Dskip-non-native \
-  --search-prefix "$PREFIX"
-
-# Produce the experimental std lib documentation.
-stage3-release/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/macos/build-x86_64.sh b/ci/macos/build-x86_64.sh
deleted file mode 100755
index 1a30b10d3a471d8b03114d96f81136664d515e97..0000000000000000000000000000000000000000
--- a/ci/macos/build-x86_64.sh
+++ /dev/null
@@ -1,54 +0,0 @@
-#!/bin/sh
-
-set -x
-set -e
-
-# Script assumes the presence of the following:
-# s3cmd 
-
-ZIGDIR="$(pwd)"
-TARGET="$ARCH-macos-none"
-MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.10.0-dev.4560+828735ac0"
-PREFIX="$HOME/$CACHE_BASENAME"
-JOBS="-j3"
-
-rm -rf $PREFIX
-cd $HOME
-
-curl -L -O "https://ziglang.org/deps/$CACHE_BASENAME.tar.xz"
-tar xf "$CACHE_BASENAME.tar.xz"
-
-ZIG="$PREFIX/bin/zig"
-
-cd $ZIGDIR
-
-# Make the `zig version` number consistent.
-# This will affect the cmake command below.
-git config core.abbrev 9
-git fetch --unshallow || true
-git fetch --tags
-
-mkdir build
-cd build
-cmake .. \
-  -DCMAKE_INSTALL_PREFIX="stage3-release" \
-  -DCMAKE_PREFIX_PATH="$PREFIX" \
-  -DCMAKE_BUILD_TYPE=Release \
-  -DCMAKE_C_COMPILER="$ZIG;cc;-target;$TARGET;-mcpu=$MCPU" \
-  -DCMAKE_CXX_COMPILER="$ZIG;c++;-target;$TARGET;-mcpu=$MCPU" \
-  -DZIG_TARGET_TRIPLE="$TARGET" \
-  -DZIG_TARGET_MCPU="$MCPU" \
-  -DZIG_STATIC=ON
-
-make $JOBS install
-
-stage3-release/bin/zig build test docs \
-  --zig-lib-dir "$(pwd)/../lib" \
-  -Denable-macos-sdk \
-  -Dstatic-llvm \
-  -Dskip-non-native \
-  --search-prefix "$PREFIX"
-
-# Produce the experimental std lib documentation.
-stage3-release/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/windows/build.ps1 b/ci/windows/build.ps1
deleted file mode 100644
index 2e4940275067e60aa488fbef5a1f559c74720179..0000000000000000000000000000000000000000
--- a/ci/windows/build.ps1
+++ /dev/null
@@ -1,63 +0,0 @@
-$TARGET = "$($Env:ARCH)-windows-gnu"
-$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.11.0-dev.25+499dddb4c"
-$ZIG_LLVM_CLANG_LLD_URL = "https://ziglang.org/deps/$ZIG_LLVM_CLANG_LLD_NAME.zip"
-
-Write-Output "Downloading $ZIG_LLVM_CLANG_LLD_URL"
-
-Invoke-WebRequest -Uri "$ZIG_LLVM_CLANG_LLD_URL" -OutFile "$ZIG_LLVM_CLANG_LLD_NAME.zip"
-
-Write-Output "Extracting..."
-
-Add-Type -AssemblyName System.IO.Compression.FileSystem ; 
-[System.IO.Compression.ZipFile]::ExtractToDirectory("$PWD/$ZIG_LLVM_CLANG_LLD_NAME.zip", "$PWD")
-
-Set-Variable -Name ZIGLIBDIR -Value "$(Get-Location)\lib"
-Set-Variable -Name ZIGINSTALLDIR -Value "$(Get-Location)\stage3-release"
-Set-Variable -Name ZIGPREFIXPATH -Value "$(Get-Location)\$ZIG_LLVM_CLANG_LLD_NAME"
-      
-function CheckLastExitCode {
-    if (!$?) {
-        exit 1
-    }
-    return 0
-}
-
-# Make the `zig version` number consistent.
-# This will affect the `zig build` command below which uses `git describe`.
-git config core.abbrev 9
-git fetch --tags
-
-if ((git rev-parse --is-shallow-repository) -eq "true") {
-    git fetch --unshallow # `git describe` won't work on a shallow repo
-}
-
-Write-Output "Building Zig..."
-
-& "$ZIGPREFIXPATH\bin\zig.exe" build `
-    --prefix "$ZIGINSTALLDIR" `
-    --search-prefix "$ZIGPREFIXPATH" `
-    --zig-lib-dir "$ZIGLIBDIR" `
-    -Denable-stage1 `
-    -Dstatic-llvm `
-    -Drelease `
-    -Duse-zig-libcxx `
-    -Dtarget="$TARGET"
-CheckLastExitCode
-
-Write-Output " zig build test docs..."
-
-& "$ZIGINSTALLDIR\bin\zig.exe" build test docs `
-    --search-prefix "$ZIGPREFIXPATH" `
-    -Dstatic-llvm `
-    -Dskip-non-native `
-    -Denable-symlinks-windows
-CheckLastExitCode
-
-# Produce the experimental std lib documentation.
-Write-Output "zig test std/std.zig..."
-
-& "$ZIGINSTALLDIR\bin\zig.exe" test "$ZIGLIBDIR\std\std.zig" `
-    --zig-lib-dir "$ZIGLIBDIR" `
-    -femit-docs `
-    -fno-emit-bin
-CheckLastExitCode
diff --git a/ci/x86_64-linux-debug.sh b/ci/x86_64-linux-debug.sh
new file mode 100755
index 0000000000000000000000000000000000000000..a5182973a64d3a9d92973dcbc0458c11e4a57ea8
--- /dev/null
+++ b/ci/x86_64-linux-debug.sh
@@ -0,0 +1,65 @@
+#!/bin/sh
+
+# Requires cmake ninja-build
+
+set -x
+set -e
+
+ARCH="$(uname -m)"
+TARGET="$ARCH-linux-musl"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.11.0-dev.256+271cc52a1"
+PREFIX="$HOME/deps/$CACHE_BASENAME"
+ZIG="$PREFIX/bin/zig"
+
+export PATH="$HOME/deps/wasmtime-v2.0.2-$ARCH-linux:$HOME/deps/qemu-linux-x86_64-6.1.0.1/bin:$PATH"
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git config core.abbrev 9
+git fetch --unshallow || true
+git fetch --tags
+
+export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
+export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
+
+rm -rf build-debug
+mkdir build-debug
+cd build-debug
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-debug" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Debug \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON \
+  -GNinja
+
+# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
+# so that installation and testing do not get affected by them.
+unset CC
+unset CXX
+
+ninja install
+
+echo "Looking for non-conforming code formatting..."
+stage3-debug/bin/zig fmt --check .. \
+  --exclude ../test/cases/ \
+  --exclude ../build-debug
+
+# simultaneously test building self-hosted without LLVM and with 32-bit arm
+stage3-debug/bin/zig build -Dtarget=arm-linux-musleabihf
+
+stage3-debug/bin/zig build test docs \
+  -fqemu \
+  -fwasmtime \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+
+# Look for HTML errors.
+tidy --drop-empty-elements no -qe ../zig-cache/langref.html
+
+# Produce the experimental std lib documentation.
+stage3-debug/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/x86_64-linux-release.sh b/ci/x86_64-linux-release.sh
new file mode 100755
index 0000000000000000000000000000000000000000..fbcf86e4182461a7ca6acbe4af83b9d8130c5d18
--- /dev/null
+++ b/ci/x86_64-linux-release.sh
@@ -0,0 +1,82 @@
+#!/bin/sh
+
+# Requires cmake ninja-build
+
+set -x
+set -e
+
+ARCH="$(uname -m)"
+TARGET="$ARCH-linux-musl"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.11.0-dev.256+271cc52a1"
+PREFIX="$HOME/deps/$CACHE_BASENAME"
+ZIG="$PREFIX/bin/zig" 
+
+export PATH="$HOME/deps/wasmtime-v2.0.2-$ARCH-linux:$HOME/deps/qemu-linux-x86_64-6.1.0.1/bin:$PATH"
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git config core.abbrev 9
+git fetch --unshallow || true
+git fetch --tags
+
+export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
+export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
+
+rm -rf build-release
+mkdir build-release
+cd build-release
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-release" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON \
+  -GNinja
+
+# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
+# so that installation and testing do not get affected by them.
+unset CC
+unset CXX
+
+ninja install
+
+echo "Looking for non-conforming code formatting..."
+stage3-release/bin/zig fmt --check .. \
+  --exclude ../test/cases/ \
+  --exclude ../build-debug \
+  --exclude ../build-release
+
+# simultaneously test building self-hosted without LLVM and with 32-bit arm
+stage3-release/bin/zig build -Dtarget=arm-linux-musleabihf
+
+stage3-release/bin/zig build test docs \
+  -fqemu \
+  -fwasmtime \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+
+# Look for HTML errors.
+tidy --drop-empty-elements no -qe ../zig-cache/langref.html
+
+# Produce the experimental std lib documentation.
+stage3-release/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
+
+stage3-release/bin/zig build \
+  --prefix stage4-release \
+  -Denable-llvm \
+  -Denable-stage1 \
+  -Dno-lib \
+  -Drelease \
+  -Dstrip \
+  -Dtarget=$TARGET \
+  -Duse-zig-libcxx \
+  -Dversion-string="$(stage3-release/bin/zig version)"
+
+# diff returns an error code if the files differ.
+echo "If the following command fails, it means nondeterminism has been"
+echo "introduced, making stage3 and stage4 no longer byte-for-byte identical."
+diff stage3-release/bin/zig stage4-release/bin/zig
diff --git a/ci/x86_64-macos.sh b/ci/x86_64-macos.sh
new file mode 100755
index 0000000000000000000000000000000000000000..1a30b10d3a471d8b03114d96f81136664d515e97
--- /dev/null
+++ b/ci/x86_64-macos.sh
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -x
+set -e
+
+# Script assumes the presence of the following:
+# s3cmd 
+
+ZIGDIR="$(pwd)"
+TARGET="$ARCH-macos-none"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.10.0-dev.4560+828735ac0"
+PREFIX="$HOME/$CACHE_BASENAME"
+JOBS="-j3"
+
+rm -rf $PREFIX
+cd $HOME
+
+curl -L -O "https://ziglang.org/deps/$CACHE_BASENAME.tar.xz"
+tar xf "$CACHE_BASENAME.tar.xz"
+
+ZIG="$PREFIX/bin/zig"
+
+cd $ZIGDIR
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git config core.abbrev 9
+git fetch --unshallow || true
+git fetch --tags
+
+mkdir build
+cd build
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-release" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_C_COMPILER="$ZIG;cc;-target;$TARGET;-mcpu=$MCPU" \
+  -DCMAKE_CXX_COMPILER="$ZIG;c++;-target;$TARGET;-mcpu=$MCPU" \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON
+
+make $JOBS install
+
+stage3-release/bin/zig build test docs \
+  --zig-lib-dir "$(pwd)/../lib" \
+  -Denable-macos-sdk \
+  -Dstatic-llvm \
+  -Dskip-non-native \
+  --search-prefix "$PREFIX"
+
+# Produce the experimental std lib documentation.
+stage3-release/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib
diff --git a/ci/x86_64-windows.ps1 b/ci/x86_64-windows.ps1
new file mode 100644
index 0000000000000000000000000000000000000000..2e4940275067e60aa488fbef5a1f559c74720179
--- /dev/null
+++ b/ci/x86_64-windows.ps1
@@ -0,0 +1,63 @@
+$TARGET = "$($Env:ARCH)-windows-gnu"
+$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.11.0-dev.25+499dddb4c"
+$ZIG_LLVM_CLANG_LLD_URL = "https://ziglang.org/deps/$ZIG_LLVM_CLANG_LLD_NAME.zip"
+
+Write-Output "Downloading $ZIG_LLVM_CLANG_LLD_URL"
+
+Invoke-WebRequest -Uri "$ZIG_LLVM_CLANG_LLD_URL" -OutFile "$ZIG_LLVM_CLANG_LLD_NAME.zip"
+
+Write-Output "Extracting..."
+
+Add-Type -AssemblyName System.IO.Compression.FileSystem ; 
+[System.IO.Compression.ZipFile]::ExtractToDirectory("$PWD/$ZIG_LLVM_CLANG_LLD_NAME.zip", "$PWD")
+
+Set-Variable -Name ZIGLIBDIR -Value "$(Get-Location)\lib"
+Set-Variable -Name ZIGINSTALLDIR -Value "$(Get-Location)\stage3-release"
+Set-Variable -Name ZIGPREFIXPATH -Value "$(Get-Location)\$ZIG_LLVM_CLANG_LLD_NAME"
+      
+function CheckLastExitCode {
+    if (!$?) {
+        exit 1
+    }
+    return 0
+}
+
+# Make the `zig version` number consistent.
+# This will affect the `zig build` command below which uses `git describe`.
+git config core.abbrev 9
+git fetch --tags
+
+if ((git rev-parse --is-shallow-repository) -eq "true") {
+    git fetch --unshallow # `git describe` won't work on a shallow repo
+}
+
+Write-Output "Building Zig..."
+
+& "$ZIGPREFIXPATH\bin\zig.exe" build `
+    --prefix "$ZIGINSTALLDIR" `
+    --search-prefix "$ZIGPREFIXPATH" `
+    --zig-lib-dir "$ZIGLIBDIR" `
+    -Denable-stage1 `
+    -Dstatic-llvm `
+    -Drelease `
+    -Duse-zig-libcxx `
+    -Dtarget="$TARGET"
+CheckLastExitCode
+
+Write-Output " zig build test docs..."
+
+& "$ZIGINSTALLDIR\bin\zig.exe" build test docs `
+    --search-prefix "$ZIGPREFIXPATH" `
+    -Dstatic-llvm `
+    -Dskip-non-native `
+    -Denable-symlinks-windows
+CheckLastExitCode
+
+# Produce the experimental std lib documentation.
+Write-Output "zig test std/std.zig..."
+
+& "$ZIGINSTALLDIR\bin\zig.exe" test "$ZIGLIBDIR\std\std.zig" `
+    --zig-lib-dir "$ZIGLIBDIR" `
+    -femit-docs `
+    -fno-emit-bin
+CheckLastExitCode