diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..f8a1690
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,14 @@
+name: ci
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+jobs:
+  build-linux:
+    runs-on: ubuntu-latest
+    container: swiftlang/swift:nightly-main-jammy
+    steps:
+      - uses: actions/checkout@v4
+      - run: apt-get update && apt-get install --no-install-recommends -y make llvm
+      - run: make
diff --git a/Makefile b/Makefile
index cc800c0..458d3cb 100644
--- a/Makefile
+++ b/Makefile
@@ -7,8 +7,8 @@ SWIFT := swift
 AS := clang -x assembler
 ASFLAGS := -target $(TRIPLE) -c
 LD := clang -fuse-ld=lld
-LDFLAGS := -nostdlib -Wl,-gc-sections -static -lgcc
-OBJCOPY := objcopy
+LDFLAGS := -target $(TRIPLE) -nostdlib -Wl,-gc-sections -static
+OBJCOPY := llvm-objcopy
 QEMU := qemu-system-aarch64
 
 .PHONY: all
diff --git a/Package.swift b/Package.swift
index bddb59f..670933d 100644
--- a/Package.swift
+++ b/Package.swift
@@ -16,6 +16,7 @@ let package = Package(
             swiftSettings: [
                 .enableExperimentalFeature("Embedded"),
                 .unsafeFlags(["-Xfrontend", "-no-allocations"]),
+                .unsafeFlags(["-Xfrontend", "-function-sections"]),
                 .unsafeFlags(["-Xfrontend", "-disable-stack-protector"]),
                 .unsafeFlags(["-swift-version", "6"]),
                 .define("RASPI3"),
diff --git a/README.md b/README.md
index 136c7fd..5f172e3 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,10 @@ An operating system written in Swift.
   - Arch Linux: `sudo pacman -S make`
   - Fedora: `sudo dnf install make`
   - Ubuntu: `sudo apt install make`
-- GNU Binutils
-  - Arch Linux: `sudo pacman -S binutils`
-  - Fedora: `sudo dnf install binutils`
-  - Ubuntu: `sudo apt install binutils`
+- llvm-objcopy
+  - Arch Linux: `sudo pacman -S llvm`
+  - Fedora: `sudo dnf install llvm`
+  - Ubuntu: `sudo apt install llvm`
 - QEMU
   - Arch Linux: `sudo pacman -S qemu-system-aarch64`
   - Fedora: `sudo dnf install qemu-system-aarch64-core`