diff --git a/.gitea/workflows/main.yml b/.gitea/workflows/main.yml
index 97de1a7..cc35ad0 100644
--- a/.gitea/workflows/main.yml
+++ b/.gitea/workflows/main.yml
@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest ]
-        BIRTH_CMAKE_BUILD_TYPE: [ Debug, Release-assertions, Release ]
+        BIRTH_CMAKE_BUILD_TYPES: [ Debug, Release-assertions, Release ]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -25,7 +25,7 @@ jobs:
         shell: bash
         env:
           BB_CI: 1
-          CMAKE_BUILD_TYPE: ${{matrix.BIRTH_CMAKE_BUILD_TYPE}}
+          CMAKE_BUILD_TYPE: ${{matrix.BIRTH_CMAKE_BUILD_TYPES}}
           CLANG_PATH: clang-19
           CLANGXX_PATH: clang++-19
         run: |
diff --git a/.gitea/workflows/pr.yml b/.gitea/workflows/pr.yml
index b973236..54f8cb1 100644
--- a/.gitea/workflows/pr.yml
+++ b/.gitea/workflows/pr.yml
@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest ]
-        BIRTH_CMAKE_BUILD_TYPE: [ Release-assertions, Release ]
+        BIRTH_CMAKE_BUILD_TYPES: [ Release-assertions, Release ]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -20,11 +20,10 @@ jobs:
         shell: bash
         env:
           BB_CI: 1
-          CMAKE_BUILD_TYPE: ${{matrix.BIRTH_CMAKE_BUILD_TYPE}}
+          CMAKE_BUILD_TYPE: ${{matrix.BIRTH_CMAKE_BUILD_TYPES}}
           CLANG_PATH: clang-19
           CLANGXX_PATH: clang++-19
         run: |
           set -eux
           ./generate.sh
-          ./build.sh
-          ./build/bb test
+          ci/reproduce.sh
diff --git a/self_hosted_build.sh b/self_hosted_build.sh
new file mode 100755
index 0000000..00cb859
--- /dev/null
+++ b/self_hosted_build.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -eu
+if [[ -z "${BOOTSTRAP_COMPILER:-}" ]]; then
+    BOOTSTRAP_COMPILER=$HOME/bloat-buster-artifacts/releases/main/compiler_generic
+fi
+
+if [[ -z "${CMAKE_PREFIX_PATH:-}" ]]; then
+    CMAKE_PREFIX_PATH=$HOME/dev/llvm/install/llvm_20.1.7_x86_64-linux-Release
+fi
+
+$BOOTSTRAP_COMPILER compile src/compiler.bbb
diff --git a/self_hosted_generate.sh b/self_hosted_generate.sh
new file mode 100755
index 0000000..74f4091
--- /dev/null
+++ b/self_hosted_generate.sh
@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+set -eux
+
+if [[ -z "${LLVM_VERSION:-}" ]]; then
+    LLVM_VERSION=20.1.7
+fi
+
+if [[ -z "${BB_CI:-}" ]]; then
+    BB_CI=0
+fi
+
+if [[ -z "${CMAKE_BUILD_TYPE:-}" ]]; then
+    CMAKE_BUILD_TYPE=Debug
+    LLVM_CMAKE_BUILD_TYPE=Release
+else
+    LLVM_CMAKE_BUILD_TYPE=$CMAKE_BUILD_TYPE
+fi
+
+BIRTH_NATIVE_OS_STRING=$OSTYPE
+
+case "$BIRTH_NATIVE_OS_STRING" in
+    darwin*) BIRTH_OS="macos";;
+    linux*) BIRTH_OS="linux";;
+    msys*) BIRTH_OS="windows";;
+    *) exit 1
+esac
+
+BIRTH_NATIVE_ARCH_STRING="$(uname -m)"
+
+case "$BIRTH_NATIVE_ARCH_STRING" in
+    x86_64) BIRTH_ARCH="x86_64";;
+    arm64) BIRTH_ARCH="aarch64";;
+    *) exit 1
+esac
+
+if [[ -z "${CMAKE_PREFIX_PATH:-}" ]]; then
+    CMAKE_PREFIX_PATH=$HOME/dev/llvm/install/llvm_${LLVM_VERSION}_${BIRTH_ARCH}-${BIRTH_OS}-${LLVM_CMAKE_BUILD_TYPE}
+fi
+
+if [[ -z "${CLANG_PATH:-}" ]]; then
+    CLANG_PATH=clang
+    CLANGXX_PATH=clang++
+fi
+
+OPT_ARGS=""
+
+case "${CMAKE_BUILD_TYPE%%-*}" in
+    Debug) OPT_ARGS="-O0 -g";;
+    Release*) OPT_ARGS="-O3";;
+    *) exit 1;;
+esac
+
+mkdir -p self-hosted-bb-cache
+$CLANG_PATH -c tests/c_abi.c -o self-hosted-bb-cache/c_abi.o $OPT_ARGS -std=gnu2x