diff --git a/.cargo/config.toml b/.cargo/config.toml
index 7c2058e..caa816c 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,24 +1,35 @@
-# On Linux, if we don't link to gcc_eh, we get can get this error when loading the loadable extension:
-# undefined symbol: _Unwind_Resume
-# This adds around 29KB to the loadable extension.
-# It may also be an option to just define _Unwind_Resume, but it causes crashes on errors on e.g. iOS, so rather avoid it.
 
-[target.x86_64-unknown-linux-gnu]
-rustflags = [
-    "-C", "link-arg=-lgcc_eh",
-]
+# Previously we added this to rustflags for all linux builds:
+#   "-C", "link-arg=-lgcc_eh"
+# It was to fix this error when loading the loadable extension:
+#   undefined symbol: _Unwind_Resume
+# Now, we instead build using:
+#   -Z build-std=panic_abort,core,alloc
+# This fixes the same issue. We still keep -lgcc_eh,
+# to support manual builds without -Z build-std.
+
+# Without -Z build-std, with -lgcc_eh:
+#   241KB, loading works
+# Without -Z build-std, without -lgcc_eh:
+#   207KB, undefined symbol: _Unwind_Resume
+# With -Z build-std, without -lgcc_eh:
+#   173K, loading works
+# With -Z build-std, with -lgcc_eh:
+#   173K, loading works
+# Conclusion: -lgcc_eh has no effect when using -Z build-std.
 
-[target.i686-linux-unknown-linux-gnu]
+[target.x86_64-unknown-linux-gnu]
 rustflags = [
     "-C", "link-arg=-lgcc_eh",
 ]
 
-[target.aarch64-linux-unknown-linux-gnu]
+[target.i686-unknown-linux-gnu]
 rustflags = [
     "-C", "link-arg=-lgcc_eh",
 ]
 
 [target.aarch64-unknown-linux-gnu]
+linker = "aarch64-linux-gnu-gcc"
 rustflags = [
     "-C", "link-arg=-lgcc_eh",
 ]
diff --git a/.github/actions/upload/action.yml b/.github/actions/upload/action.yml
index e0c4bc9..60f4d23 100644
--- a/.github/actions/upload/action.yml
+++ b/.github/actions/upload/action.yml
@@ -15,10 +15,9 @@ runs:
   using: "composite"
   steps:
     - name: Upload binary
-      uses: svenstaro/upload-release-action@v2
-      with:
-        repo_token: ${{ inputs.repo-token }}
-        overwrite: true
-        file: ${{ inputs.file-name }}
-        asset_name: ${{ inputs.file-name }}
-        tag: ${{ inputs.tag }}
+      shell: bash
+      env:
+        GH_TOKEN: ${{ github.token }}
+        GH_REPO: ${{ github.repository }}
+      run: |
+        gh release upload "${{ inputs.tag }}" "${{ inputs.file-name }}"
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index b3f11d3..68b0618 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -1,6 +1,5 @@
 on:
   push:
-  workflow_dispatch:
 name: "linux"
 jobs:
   build_x86_64:
@@ -18,15 +17,7 @@ jobs:
           components: rust-src
 
       - name: Build binaries
-        run: bash tool/build_linux.sh x64
-
-      - name: Upload binary
-        if: github.event_name == 'workflow_dispatch'
-        uses: ./.github/actions/upload
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          file-name: libpowersync_x64.so
-          tag: ${{ github.ref_name }}
+        run: ./tool/build_linux.sh x64
 
   build_aarch64:
     name: Building Linux aarch64
@@ -43,12 +34,4 @@ jobs:
           components: rust-src
 
       - name: Build binaries
-        run: bash tool/build_linux.sh aarch64
-
-      - name: Upload binary
-        if: github.event_name == 'workflow_dispatch'
-        uses: ./.github/actions/upload
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          file-name: libpowersync_aarch64.so
-          tag: ${{ github.ref_name }}
+        run: ./tool/build_linux.sh aarch64
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index ff513f8..f56db31 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -1,6 +1,5 @@
 on:
   push:
-  workflow_dispatch:
 name: "macos"
 jobs:
   build_macOS_aarch64:
@@ -11,16 +10,14 @@ jobs:
         with:
           submodules: true
 
-      - name: Build binary
-        run: bash tool/build_macos.sh aarch64
-
-      - name: Upload binary
-        if: github.event_name == 'workflow_dispatch'
-        uses: ./.github/actions/upload
+      - name: Install Rust Nightly
+        uses: dtolnay/rust-toolchain@stable
         with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          file-name: libpowersync_aarch64.dylib
-          tag: ${{ github.ref_name }}
+          toolchain: nightly-2024-05-18
+          components: rust-src
+
+      - name: Build binary
+        run: ./tool/build_macos.sh aarch64
 
   build_macOS_x64:
     name: Building macOS x64
@@ -30,13 +27,11 @@ jobs:
         with:
           submodules: true
 
-      - name: Build binary
-        run: bash tool/build_macos.sh x64
-
-      - name: Upload binary
-        if: github.event_name == 'workflow_dispatch'
-        uses: ./.github/actions/upload
+      - name: Install Rust Nightly
+        uses: dtolnay/rust-toolchain@stable
         with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          file-name: libpowersync_x64.dylib
-          tag: ${{ github.ref_name }}
+          toolchain: nightly-2024-05-18
+          components: rust-src
+
+      - name: Build binary
+        run: ./tool/build_macos.sh x64
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f75db75..2a0a40d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,7 +1,12 @@
 name: release
 on:
   workflow_dispatch:
-  push:
+    inputs:
+      publish:
+        type: boolean
+        required: false
+        default: false
+        description: Set to true to publish artifacts to external targets such as Maven Central
 jobs:
   draft_release:
     if: github.event_name == 'workflow_dispatch'
@@ -57,6 +62,7 @@ jobs:
           cargo install cargo-ndk
 
       - name: Publish for Android
+        if: ${{ inputs.publish }}
         run: |
           cd android
           ./gradlew publish
@@ -123,7 +129,7 @@ jobs:
           components: rust-src
 
       - name: Build binaries
-        run: bash tool/build_linux.sh x64
+        run: ./tool/build_linux.sh x64
 
       - name: Upload binary
         uses: ./.github/actions/upload
@@ -135,7 +141,7 @@ jobs:
   publish_linux_aarch64:
     name: Publish Linux aarch64
     needs: [draft_release]
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-arm64
     steps:
       - uses: actions/checkout@v3
         with:
@@ -148,7 +154,7 @@ jobs:
           components: rust-src
 
       - name: Build binaries
-        run: bash tool/build_linux.sh aarch64
+        run: ./tool/build_linux.sh aarch64
 
       - name: Upload binary
         uses: ./.github/actions/upload
@@ -166,6 +172,12 @@ jobs:
         with:
           submodules: true
 
+      - name: Install Rust Nightly
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: nightly-2024-05-18
+          components: rust-src
+
       - name: Build binary
         run: bash tool/build_windows.sh x64
 
@@ -185,8 +197,14 @@ jobs:
         with:
           submodules: true
 
+      - name: Install Rust Nightly
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: nightly-2024-05-18
+          components: rust-src
+
       - name: Build binary
-        run: bash tool/build_macos.sh aarch64
+        run: ./tool/build_macos.sh aarch64
 
       - name: Upload binary
         uses: ./.github/actions/upload
@@ -204,8 +222,14 @@ jobs:
         with:
           submodules: true
 
+      - name: Install Rust Nightly
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: nightly-2024-05-18
+          components: rust-src
+
       - name: Build binary
-        run: bash tool/build_macos.sh x64
+        run: ./tool/build_macos.sh x64
 
       - name: Upload binary
         uses: ./.github/actions/upload
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1277c0e..70e9193 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -22,6 +22,12 @@ jobs:
         run: |
           sudo apt install libreadline-dev
 
+      - name: Install Rust Nightly
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: nightly-2024-05-18
+          components: rust-src
+
       - name: Build
         run: |
           # Need a debug build for the dart tests
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 1e659e2..bfca14d 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -10,13 +10,11 @@ jobs:
         with:
           submodules: true
 
-      - name: Build binary
-        run: bash tool/build_windows.sh x64
-
-      - name: Upload binary
-        if: github.event_name == 'workflow_dispatch'
-        uses: ./.github/actions/upload
+      - name: Install Rust Nightly
+        uses: dtolnay/rust-toolchain@stable
         with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          file-name: powersync_x64.dll
-          tag: ${{ github.ref_name }}
+          toolchain: nightly-2024-05-18
+          components: rust-src
+
+      - name: Build binary
+        run: ./tool/build_windows.sh x64
diff --git a/RELEASING.md b/RELEASING.md
index 62b2a0e..7a181fa 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -21,7 +21,7 @@ git push --tags
 Build:
 
 ```
-gh workflow run release --ref v1.2.3
+gh workflow run release --ref v1.2.3 -f publish=true
 ```
 
 The above does the following:
diff --git a/tool/build_linux.sh b/tool/build_linux.sh
old mode 100644
new mode 100755
index b7f904f..ed19841
--- a/tool/build_linux.sh
+++ b/tool/build_linux.sh
@@ -1,9 +1,10 @@
+#!/bin/sh
+set -e
+
 if [ "$1" = "x64" ]; then
-  rustup target add target x86_64-unknown-linux-gnu
-  cargo build -p powersync_loadable --release
-  mv "target/release/libpowersync.so" "libpowersync_x64.so"
+  cargo build -p powersync_loadable -Z build-std=panic_abort,core,alloc --release --target x86_64-unknown-linux-gnu
+  mv "target/x86_64-unknown-linux-gnu/release/libpowersync.so" "libpowersync_x64.so"
 else
-  rustup target add aarch64-unknown-linux-gnu
-  cargo build -p powersync_loadable --release
-  mv "target/release/libpowersync.so" "libpowersync_aarch64.so"
+  cargo build -p powersync_loadable -Z build-std=panic_abort,core,alloc --release --target aarch64-unknown-linux-gnu
+  mv "target/aarch64-unknown-linux-gnu/release/libpowersync.so" "libpowersync_aarch64.so"
 fi
diff --git a/tool/build_macos.sh b/tool/build_macos.sh
old mode 100644
new mode 100755
index 18428bc..01e3bd3
--- a/tool/build_macos.sh
+++ b/tool/build_macos.sh
@@ -1,10 +1,10 @@
+#!/bin/sh
+set -e
+
 if [ "$1" = "x64" ]; then
-  #Note: x86_64-apple-darwin has not been tested.
-  rustup target add target x86_64-apple-darwin
-  cargo build -p powersync_loadable --release
-  mv "target/release/libpowersync.dylib" "libpowersync_x64.dylib"
+  cargo build -Z build-std=panic_abort,core,alloc -p powersync_loadable --release --target x86_64-apple-darwin
+  mv "target/x86_64-apple-darwin/release/libpowersync.dylib" "libpowersync_x64.dylib"
 else
-  rustup target add aarch64-apple-darwin
-  cargo build -p powersync_loadable --release
-  mv "target/release/libpowersync.dylib" "libpowersync_aarch64.dylib"
+  cargo build -Z build-std=panic_abort,core,alloc -p powersync_loadable --release --target aarch64-apple-darwin
+  mv "target/aarch64-apple-darwin/release/libpowersync.dylib" "libpowersync_aarch64.dylib"
 fi
diff --git a/tool/build_windows.sh b/tool/build_windows.sh
old mode 100644
new mode 100755
index 64c8b8f..fd94325
--- a/tool/build_windows.sh
+++ b/tool/build_windows.sh
@@ -1,10 +1,11 @@
+#!/bin/sh
+set -e
+
 if [ "$1" = "x64" ]; then
-  rustup target add x86_64-pc-windows-msvc
-  cargo build -p powersync_loadable --release
-  mv "target/release/powersync.dll" "powersync_x64.dll"
+  cargo build -Z build-std=panic_abort,core,alloc -p powersync_loadable --release --target x86_64-pc-windows-msvc
+  mv "target/x86_64-pc-windows-msvc/release/powersync.dll" "powersync_x64.dll"
 else
   #Note: aarch64-pc-windows-msvc has not been tested.
-  rustup target add aarch64-pc-windows-msvc
-  cargo build -p powersync_loadable --release
-  mv "target/release/powersync.dll" "powersync_aarch64.dll"
+  cargo build -Z build-std=panic_abort,core,alloc -p powersync_loadable --release --target aarch64-pc-windows-msvc
+  mv "target/aarch64-pc-windows-msvc/release/powersync.dll" "powersync_aarch64.dll"
 fi
\ No newline at end of file