diff --git a/.github/workflows/build-patches.yml b/.github/workflows/build-patches.yml
index 9260417..88d7f85 100644
--- a/.github/workflows/build-patches.yml
+++ b/.github/workflows/build-patches.yml
@@ -11,10 +11,8 @@ jobs:
       - uses: actions/checkout@v2
       - name: Install prerequisite packages
         run: |
-          curl https://practicerom.com/public/packages/debian/pgp.pub | sudo apt-key add -
-          echo deb https://practicerom.com/public/packages/debian ./staging main | sudo tee /etc/apt/sources.list.d/practicerom.list
-          sudo apt-get update
-          sudo apt-get install practicerom-dev xdelta3 ninja-build
+          sudo sh -c "$(curl -fsSL https://raw.githubusercontent.com/PracticeROM/packages/HEAD/scripts/install-debian_amd64.sh)"
+          sudo apt-get install -y practicerom-dev xdelta3 ninja-build
           pip install --break-system-packages -r requirements.txt
       - name: Download ROMs
         run: |
diff --git a/.github/workflows/check-code.yml b/.github/workflows/check-code.yml
index 5df3b7c..e401449 100644
--- a/.github/workflows/check-code.yml
+++ b/.github/workflows/check-code.yml
@@ -14,15 +14,15 @@ jobs:
     - uses: actions/checkout@v3
     - name: Install dependencies
       run: |
-        sudo sh -c '(curl https://practicerom.com/public/packages/debian/pgp.pub || wget -O - https://practicerom.com/public/packages/debian/pgp.pub) | apt-key add - && echo deb https://practicerom.com/public/packages/debian ./staging main >/etc/apt/sources.list.d/practicerom.list && apt update'
-        sudo apt install practicerom-dev ninja-build
+        sudo sh -c "$(curl -fsSL https://raw.githubusercontent.com/PracticeROM/packages/HEAD/scripts/install-debian_amd64.sh)"
+        sudo apt-get install -y practicerom-dev ninja-build
         pip install --break-system-packages -r requirements.txt
     - name: Test build
       run: |
         python3 configure.py
-        ninja -j16 us jp
+        ninja us jp
         python3 configure.py --cppflags='-DPAYLOAD=0x1c84d30 -DDMA_COPY=0x8002973c -DEND=0x01ccd110' --ldflags='-Wl,--defsym,start=0x8004ad7c'
-        ninja -j16 us_ldr jp_ldr
+        ninja us_ldr jp_ldr
   formatting-check:
     name: Formatting Check
     runs-on: ubuntu-latest