diff --git a/.github/workflows/release.linux_amd64.yml b/.github/workflows/release.linux.yml
similarity index 70%
rename from .github/workflows/release.linux_amd64.yml
rename to .github/workflows/release.linux.yml
index e68a842..7429eec 100644
--- a/.github/workflows/release.linux_amd64.yml
+++ b/.github/workflows/release.linux.yml
@@ -3,10 +3,25 @@ on:
     types:
       - created
 
-name: release (linux/amd64)
+name: release (linux)
 jobs:
-  linux:
+  build:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - arch: amd64
+            cc:   gcc
+          - arch: arm64
+            cc:   aarch64-linux-gnu-gcc
+          - arch: arm
+            cc:   arm-linux-gnueabihf-gcc
+
+    env:
+      GOOS:   linux
+      GOARCH: ${{ matrix.arch }}
+      CC:     ${{ matrix.cc }}
+
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
@@ -16,6 +31,11 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ github.token }}
 
+      - name: Install cross-compilers
+        run: |
+          sudo apt-get update 
+          sudo apt-get install -y gcc-aarch64-linux-gnu gcc-arm-linux-gnueabihf
+
       - name: Install nfpm
         run: |
           wget https://github.com/goreleaser/nfpm/releases/download/v2.2.3/nfpm_2.2.3_Linux_x86_64.tar.gz
@@ -23,14 +43,15 @@ jobs:
 
       - name: Build litestream
         run: |
+          rm -rf dist
           mkdir -p dist
           cp etc/litestream.yml etc/litestream.service dist
           cat etc/nfpm.yml | LITESTREAM_VERSION=${{ steps.release.outputs.tag_name }} envsubst > dist/nfpm.yml
           go build -ldflags "-X 'main.Version=${{ steps.release.outputs.tag_name }}'" -o dist/litestream ./cmd/litestream
           
           cd dist
-          tar -czvf litestream-${{ steps.release.outputs.tag_name }}-linux-amd64.tar.gz litestream
-          ../nfpm pkg --config nfpm.yml --packager deb --target litestream-${{ steps.release.outputs.tag_name }}-linux-amd64.deb 
+          tar -czvf litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}.tar.gz litestream
+          ../nfpm pkg --config nfpm.yml --packager deb --target litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}.deb 
 
       - name: Upload release binary
         uses: actions/upload-release-asset@v1.0.2
@@ -39,7 +60,7 @@ jobs:
         with:
           upload_url: ${{ steps.release.outputs.upload_url }}
           asset_path: ./dist/litestream
-          asset_name: litestream-${{ steps.release.outputs.tag_name }}-linux-amd64
+          asset_name: litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}
           asset_content_type: application/octet-stream
 
       - name: Upload release tarball
@@ -48,8 +69,8 @@ jobs:
           GITHUB_TOKEN: ${{ github.token }}
         with:
           upload_url: ${{ steps.release.outputs.upload_url }}
-          asset_path: ./dist/litestream-${{ steps.release.outputs.tag_name }}-linux-amd64.tar.gz
-          asset_name: litestream-${{ steps.release.outputs.tag_name }}-linux-amd64.tar.gz
+          asset_path: ./dist/litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}.tar.gz
+          asset_name: litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}.tar.gz
           asset_content_type: application/gzip
 
       - name: Upload debian package
@@ -58,6 +79,6 @@ jobs:
           GITHUB_TOKEN: ${{ github.token }}
         with:
           upload_url: ${{ steps.release.outputs.upload_url }}
-          asset_path: ./dist/litestream-${{ steps.release.outputs.tag_name }}-linux-amd64.deb
-          asset_name: litestream-${{ steps.release.outputs.tag_name }}-linux-amd64.deb
+          asset_path: ./dist/litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}.deb
+          asset_name: litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}.deb
           asset_content_type: application/octet-stream
diff --git a/.github/workflows/release.linux_amd64_static.yml b/.github/workflows/release.linux_static.yml
similarity index 54%
rename from .github/workflows/release.linux_amd64_static.yml
rename to .github/workflows/release.linux_static.yml
index 6043540..a3e4d9d 100644
--- a/.github/workflows/release.linux_amd64_static.yml
+++ b/.github/workflows/release.linux_static.yml
@@ -3,10 +3,25 @@ on:
     types:
       - created
 
-name: release (linux/amd64-static)
+name: release (linux/static)
 jobs:
-  linux:
+  build:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - arch: amd64
+            cc:   gcc
+          - arch: arm64
+            cc:   aarch64-linux-gnu-gcc
+          - arch: arm
+            cc:   arm-linux-gnueabihf-gcc
+
+    env:
+      GOOS:   linux
+      GOARCH: ${{ matrix.arch }}
+      CC:     ${{ matrix.cc }}
+
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
@@ -16,20 +31,18 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ github.token }}
 
-      - name: Install nfpm
+      - name: Install cross-compilers
         run: |
-          wget https://github.com/goreleaser/nfpm/releases/download/v2.2.3/nfpm_2.2.3_Linux_x86_64.tar.gz
-          tar zxvf nfpm_2.2.3_Linux_x86_64.tar.gz
+          sudo apt-get update 
+          sudo apt-get install -y gcc-aarch64-linux-gnu gcc-arm-linux-gnueabihf
 
       - name: Build litestream
         run: |
+          rm -rf dist
           mkdir -p dist
-          cp etc/litestream.yml etc/litestream.service dist
-          cat etc/nfpm.yml | LITESTREAM_VERSION=${{ steps.release.outputs.tag_name }} envsubst > dist/nfpm.yml
           go build -ldflags "-w -extldflags "-static" -X 'main.Version=${{ steps.release.outputs.tag_name }}'" -o dist/litestream ./cmd/litestream
           cd dist
-          tar -czvf litestream-${{ steps.release.outputs.tag_name }}-linux-amd64-static.tar.gz litestream
-          ../nfpm pkg --config nfpm.yml --packager deb --target litestream-${{ steps.release.outputs.tag_name }}-linux-amd64-static.deb 
+          tar -czvf litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}-static.tar.gz litestream
 
       - name: Upload release binary
         uses: actions/upload-release-asset@v1.0.2
@@ -38,7 +51,7 @@ jobs:
         with:
           upload_url: ${{ steps.release.outputs.upload_url }}
           asset_path: ./dist/litestream
-          asset_name: litestream-${{ steps.release.outputs.tag_name }}-linux-amd64-static
+          asset_name: litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}-static
           asset_content_type: application/octet-stream
 
       - name: Upload release tarball
@@ -47,16 +60,6 @@ jobs:
           GITHUB_TOKEN: ${{ github.token }}
         with:
           upload_url: ${{ steps.release.outputs.upload_url }}
-          asset_path: ./dist/litestream-${{ steps.release.outputs.tag_name }}-linux-amd64-static.tar.gz
-          asset_name: litestream-${{ steps.release.outputs.tag_name }}-linux-amd64-static.tar.gz
+          asset_path: ./dist/litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}-static.tar.gz
+          asset_name: litestream-${{ steps.release.outputs.tag_name }}-${{ env.GOOS }}-${{ env.GOARCH }}-static.tar.gz
           asset_content_type: application/gzip
-
-      - name: Upload debian package
-        uses: actions/upload-release-asset@v1.0.2
-        env:
-          GITHUB_TOKEN: ${{ github.token }}
-        with:
-          upload_url: ${{ steps.release.outputs.upload_url }}
-          asset_path: ./dist/litestream-${{ steps.release.outputs.tag_name }}-linux-amd64-static.deb
-          asset_name: litestream-${{ steps.release.outputs.tag_name }}-linux-amd64-static.deb
-          asset_content_type: application/octet-stream
diff --git a/Makefile b/Makefile
index 5200b16..4b4abe5 100644
--- a/Makefile
+++ b/Makefile
@@ -3,9 +3,15 @@ default:
 dist-linux:
 	mkdir -p dist
 	cp etc/litestream.yml dist/litestream.yml
-	docker run --rm -v "${PWD}":/usr/src/litestream -w /usr/src/litestream -e GOOS=linux -e GOARCH=amd64 golang:1.15 go build -v -o dist/litestream ./cmd/litestream
+	docker run --rm -v "${PWD}":/usr/src/litestream -w /usr/src/litestream -e GOOS=linux -e GOARCH=amd64 golang:1.16 go build -v -o dist/litestream ./cmd/litestream
 	tar -cz -f dist/litestream-linux-amd64.tar.gz -C dist litestream
 
+dist-linux-arm:
+	docker run --rm -v "${PWD}":/usr/src/litestream -w /usr/src/litestream -e CGO_ENABLED=1 -e CC=arm-linux-gnueabihf-gcc -e GOOS=linux -e GOARCH=arm golang-xc:1.16 go build -v -o dist/litestream-linux-arm ./cmd/litestream
+
+dist-linux-arm64:
+	docker run --rm -v "${PWD}":/usr/src/litestream -w /usr/src/litestream -e CGO_ENABLED=1 -e CC=aarch64-linux-gnu-gcc -e GOOS=linux -e GOARCH=arm64 golang-xc:1.16 go build -v -o dist/litestream-linux-arm64 ./cmd/litestream
+
 dist-macos:
 ifndef LITESTREAM_VERSION
 	$(error LITESTREAM_VERSION is undefined)
diff --git a/db.go b/db.go
index 0bc516c..22830df 100644
--- a/db.go
+++ b/db.go
@@ -1438,9 +1438,9 @@ func RestoreReplica(ctx context.Context, r Replica, opt RestoreOptions) error {
 	// Validate options.
 	if opt.OutputPath == "" {
 		return fmt.Errorf("output path required")
-	} else if opt.Generation == "" && opt.Index != math.MaxInt64 {
+	} else if opt.Generation == "" && opt.Index != math.MaxInt32 {
 		return fmt.Errorf("must specify generation when restoring to index")
-	} else if opt.Index != math.MaxInt64 && !opt.Timestamp.IsZero() {
+	} else if opt.Index != math.MaxInt32 && !opt.Timestamp.IsZero() {
 		return fmt.Errorf("cannot specify index & timestamp to restore")
 	}
 
@@ -1733,7 +1733,7 @@ type RestoreOptions struct {
 	Generation string
 
 	// Specific index to restore from.
-	// Set to math.MaxInt64 to ignore index.
+	// Set to math.MaxInt32 to ignore index.
 	Index int
 
 	// Point-in-time to restore database.
@@ -1752,7 +1752,7 @@ type RestoreOptions struct {
 // NewRestoreOptions returns a new instance of RestoreOptions with defaults.
 func NewRestoreOptions() RestoreOptions {
 	return RestoreOptions{
-		Index: math.MaxInt64,
+		Index: math.MaxInt32,
 	}
 }
 
diff --git a/etc/nfpm.yml b/etc/nfpm.yml
index b86eef5..8352472 100644
--- a/etc/nfpm.yml
+++ b/etc/nfpm.yml
@@ -1,6 +1,6 @@
 name: litestream
-arch: amd64
-platform: linux
+arch: "${GOARCH}"
+platform: "${GOOS}"
 version: "${LITESTREAM_VERSION}"
 section: "default"
 priority: "extra"
diff --git a/replica.go b/replica.go
index bc24b5a..2b00ade 100644
--- a/replica.go
+++ b/replica.go
@@ -1109,7 +1109,7 @@ func WALIndexAt(ctx context.Context, r Replica, generation string, maxIndex int,
 	}
 
 	// If max index is specified but not found, return an error.
-	if maxIndex != math.MaxInt64 && index != maxIndex {
+	if maxIndex != math.MaxInt32 && index != maxIndex {
 		return index, fmt.Errorf("unable to locate index %d in generation %q, highest index was %d", maxIndex, generation, index)
 	}
 	return index, nil