diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2c3c263..bb9a724 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,7 +2,6 @@ name: ci
 
 on:
   push:
-  pull_request:
   workflow_dispatch:
 
 concurrency:
@@ -16,7 +15,7 @@ jobs:
       GO111MODULE: "on"
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Go
         uses: actions/setup-go@v4
@@ -27,12 +26,18 @@ jobs:
         run: go get ./...
 
       - name: Build
-        run: go build -v .
+        run: go build -ldflags="-s -w" -gcflags=all="-l -B" -trimpath -buildvcs=false -v .
+
+      - name: Run UPX
+        uses: crazy-max/ghaction-upx@v3
+        with:
+          files: goqoa.exe
+          args: --brute
 
       - name: Go Test
         run: go test -v ./...
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: windows
           path: goqoa.exe
@@ -44,7 +49,7 @@ jobs:
       CGO_ENABLED: 1
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Go
         uses: actions/setup-go@v4
@@ -55,12 +60,12 @@ jobs:
         run: go get ./...
 
       - name: Build
-        run: go build -o goqoa-mac -v .
+        run: go build -ldflags="-s -w" -gcflags=all="-l -B" -trimpath -buildvcs=false -o goqoa-mac -v .
 
       - name: Go Test
         run: go test -v ./...
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: mac
           path: goqoa-mac
@@ -72,7 +77,7 @@ jobs:
       CGO_ENABLED: 1
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Go
         uses: actions/setup-go@v4
@@ -83,20 +88,31 @@ jobs:
         run: |
           go get ./...
           sudo apt-get update
-          sudo apt-get install -y libasound2-dev libmp3lame-dev
+          sudo apt-get install -y libasound2-dev
 
       - name: Build
-        run: go build -o goqoa-linux -v .
+        run: |
+          go build -ldflags="-s -w" -gcflags=all="-l -B" -trimpath -buildvcs=false -o goqoa-linux -v .
+          upx --best goqoa-linux
 
       - name: Go Test
         run: go test -v ./...
 
+      - name: Cache large spec pack
+        uses: actions/cache@v3
+        with:
+          key: qoa_test_samples_2023_02_18.zip
+          path: qoa_test_samples_2023_02_18.zip
+
+      - name: Download large spec pack
+        run: wget --timestamping https://qoaformat.org/samples/qoa_test_samples_2023_02_18.zip
+
       - name: Spec Test
         run: |
           sudo cp goqoa-linux /usr/bin/goqoa
           bash check_spec.sh
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: linux
           path: goqoa-linux
@@ -113,8 +129,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
-      - uses: actions/download-artifact@v3
+        uses: actions/checkout@v4
+      - uses: actions/checkout@v4
       - name: Release
         uses: softprops/action-gh-release@v1
         with:
diff --git a/README.md b/README.md
index 9b2657d..6da61cb 100644
--- a/README.md
+++ b/README.md
@@ -35,9 +35,9 @@ The easiest way is a pre-built binary on the [Releases](https://github.com/brahe
 Otherwise, install prerequisites for your platform:
 
     # Fedora
-    yum install gcc alsa-lib-devel lame-devel
+    yum install gcc alsa-lib-devel
     # Debian
-    apt-get install gcc pkg-config libasound2-dev libmp3lame-dev
+    apt-get install gcc pkg-config libasound2-dev
 
 Then, install directly with Go:
 
diff --git a/check_spec.sh b/check_spec.sh
index 2add6f8..c43af52 100755
--- a/check_spec.sh
+++ b/check_spec.sh
@@ -17,7 +17,7 @@ size_compare() {
     size2=$(stat -c %s "$2")
 
     if [ "$size1" != "$size2" ]; then
-        echo "Checksums do not match!"
+        echo "Sizes do not match!"
         echo "$1: $size1"
         echo "$2: $size2"
         exit 1
@@ -37,18 +37,20 @@ fi
 selected_songs=$(unzip -Z1 "$spec_zip" '*.wav' -x '*.qoa.wav' | shuf -n "$num_songs")
 
 for song in $selected_songs; do
+    echo "Checking $song..."
     song_filename=$(basename "$song")
     song_name="${song_filename%.*}"
 
     unzip -j -qq $spec_zip "*$song_name*" -d "$temp_dir"
 
-    goqoa -q convert "$temp_dir/$song_name.wav" "$temp_dir/my-$song_name.qoa"
+    goqoa convert "$temp_dir/$song_name.wav" "$temp_dir/my-$song_name.qoa"
     size_compare "$temp_dir/$song_name.qoa" "$temp_dir/my-$song_name.qoa"
 
+    goqoa -h
     goqoa -q convert "$temp_dir/my-$song_name.qoa" "$temp_dir/my-$song_name.qoa.wav"
     size_compare "$temp_dir/$song_name.qoa.wav" "$temp_dir/my-$song_name.qoa.wav"
 
-    echo -e "$song_name\tOK"
+    echo "OK"
 done
 
 rm -rf "$temp_dir" &>/dev/null
diff --git a/go.mod b/go.mod
index 326b40e..eeb1556 100644
--- a/go.mod
+++ b/go.mod
@@ -8,15 +8,15 @@ require (
 	github.com/go-audio/audio v1.0.0
 	github.com/go-audio/wav v1.1.0
 	github.com/jfreymuth/oggvorbis v1.0.5
-	github.com/spf13/cobra v1.8.0
 	github.com/mewkiz/flac v1.0.10
+	github.com/spf13/cobra v1.8.0
 	github.com/stretchr/testify v1.8.4
 	github.com/tosone/minimp3 v1.0.2
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/ebitengine/purego v0.5.0 // indirect
+	github.com/ebitengine/purego v0.6.0 // indirect
 	github.com/go-audio/riff v1.0.0 // indirect
 	github.com/icza/bitio v1.1.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
diff --git a/go.sum b/go.sum
index 781e73e..3468a72 100644
--- a/go.sum
+++ b/go.sum
@@ -6,8 +6,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/ebitengine/oto/v3 v3.1.0 h1:9tChG6rizyeR2w3vsygTTTVVJ9QMMyu00m2yBOCch6U=
 github.com/ebitengine/oto/v3 v3.1.0/go.mod h1:IK1QTnlfZK2GIB6ziyECm433hAdTaPpOsGMLhEyEGTg=
-github.com/ebitengine/purego v0.5.0 h1:JrMGKfRIAM4/QVKaesIIT7m/UVjTj5GYhRSQYwfVdpo=
-github.com/ebitengine/purego v0.5.0/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
+github.com/ebitengine/purego v0.6.0 h1:Yo9uBc1x+ETQbfEaf6wcBsjrQfCEnh/gaGUg7lguEJY=
+github.com/ebitengine/purego v0.6.0/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
 github.com/go-audio/audio v1.0.0 h1:zS9vebldgbQqktK4H0lUqWrG8P0NxCJVqcj7ZpNnwd4=
 github.com/go-audio/audio v1.0.0/go.mod h1:6uAu0+H2lHkwdGsAY+j2wHPNPpPoeg5AaEFh9FlA+Zs=
 github.com/go-audio/riff v1.0.0 h1:d8iCGbDvox9BfLagY94fBynxSPHO80LmZCaOsmKxokA=
diff --git a/pkg/qoa/qoa_test.go b/pkg/qoa/qoa_test.go
index 1bba300..5039669 100644
--- a/pkg/qoa/qoa_test.go
+++ b/pkg/qoa/qoa_test.go
@@ -1,10 +1,10 @@
 package qoa
 
 import (
+	"bytes"
 	"fmt"
 	"log"
 	"os"
-	"reflect"
 	"testing"
 
 	"github.com/go-audio/wav"
@@ -28,7 +28,7 @@ func TestEncodeHeader(t *testing.T) {
 
 	qoa.encodeHeader(header)
 
-	if !reflect.DeepEqual(header, expectedHeader) {
+	if !bytes.Equal(header, expectedHeader) {
 		t.Errorf("Header encoding mismatch.\nExpected: %#v\nGot:      %#v", expectedHeader, header)
 	}
 }