diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
index b5a7f37..0352153 100644
--- a/.github/actions/setup/action.yml
+++ b/.github/actions/setup/action.yml
@@ -17,12 +17,13 @@ runs:
       with:
         components: clippy, rustfmt, rust-src
         toolchain: ${{ inputs.toolchain }}
+        cache: "false" # We set up our own cache manually in the next step
         rustflags: ""
 
     - name: Set up Rust cache
       uses: Swatinem/rust-cache@v2
       with:
-        shared-key: rust3ds
+        cache-on-failure: "true"
 
     - name: Install build tools for host
       shell: bash
diff --git a/.github/actions/test/action.yml b/.github/actions/test/action.yml
index b4d6f2f..98dffea 100644
--- a/.github/actions/test/action.yml
+++ b/.github/actions/test/action.yml
@@ -7,27 +7,37 @@ description: >
 
 inputs:
   args:
-    description: >
-      Extra arguments to pass to `cargo 3ds test`
+    description: Extra arguments to pass to `cargo 3ds test`
     required: false
     default: ''
 
+  runner-image:
+    description: The name of the container image to build for running tests in
+    required: false
+    default: test-runner-3ds
+
 runs:
   using: composite
   steps:
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
     - name: Build test-runner image
-      uses: docker/build-push-action@v2
+      uses: docker/build-push-action@v4
       with:
-        tags: test-runner-3ds:latest
+        tags: ${{ inputs.runner-image }}:latest
         push: false
 
     - shell: bash
-      env:
-        # Set a custom runner for `cargo test` commands to use
-        CARGO_TARGET_ARMV6K_NINTENDO_3DS_RUNNER: |-
-          docker run --rm \
-            -v /tmp:/tmp \
-            -v ${{ github.workspace }}/target:/app/target \
-            -v ${{ github.workspace }}:${{ github.workspace }} \
-            test-runner-3ds:latest
-      run: cargo 3ds test ${{ inputs.args }}
+      # Set a custom runner for `cargo test` commands to use.
+      # Use ${GITHUB_WORKSPACE} due to
+      # https://github.com/actions/runner/issues/2058, which also means
+      # we have to export this instead of using the env: key
+      run: |
+        export CARGO_TARGET_ARMV6K_NINTENDO_3DS_RUNNER="docker run --rm
+            -v /tmp:/tmp
+            -v ${GITHUB_WORKSPACE}/target:/app/target
+            -v ${GITHUB_WORKSPACE}:${GITHUB_WORKSPACE}
+            ${{ inputs.runner-image }}:latest"
+        env
+        cargo 3ds -v test ${{ inputs.args }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aa7ee03..5016854 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,6 +42,11 @@ jobs:
 
     continue-on-error: ${{ matrix.toolchain == 'nightly' }}
     runs-on: ubuntu-latest
+    container:
+      image: devkitpro/devkitarm
+      volumes:
+        - '/var/run/docker.sock:/var/run/docker.sock'
+
     steps:
       - name: Checkout branch
         uses: actions/checkout@v3
@@ -52,6 +57,8 @@ jobs:
 
       - name: Build and run tests (unit + integration)
         uses: ./.github/actions/test
+        with:
+          args: -- -v
 
       - name: Build and run doc tests
         # Let's still run doc tests even if lib/integration tests fail:
@@ -62,7 +69,7 @@ jobs:
           RUSTDOCFLAGS: " --persist-doctests target/armv6k-nintendo-3ds/debug/doctests"
         uses: ./.github/actions/test
         with:
-          args: --doc
+          args: --doc -- -v
 
       - name: Upload citra logs and capture videos
         uses: actions/upload-artifact@v3
diff --git a/Dockerfile b/Dockerfile
index f183e67..1e81737 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,12 @@
 FROM buildpack-deps:latest as builder
 
-ARG CITRA_CHANNEL=nightly
-ARG CITRA_RELEASE=1962
-
 WORKDIR /tmp
 COPY ./docker/download_citra.sh /usr/local/bin/download_citra
 RUN apt-get update -y && apt-get install -y jq
-RUN download_citra ${CITRA_CHANNEL} ${CITRA_RELEASE}
 
-FROM devkitpro/devkitarm:latest as devkitarm
+ARG CITRA_CHANNEL=nightly
+ARG CITRA_RELEASE=1995
+RUN download_citra ${CITRA_CHANNEL} ${CITRA_RELEASE}
 
 FROM ubuntu:latest
 
@@ -21,8 +19,13 @@ RUN --mount=type=cache,sharing=locked,target=/var/cache/apt \
         libavfilter7 \
         xvfb
 
-COPY --from=devkitarm /opt/devkitpro /opt/devkitpro
-ENV PATH=/opt/devkitpro/devkitARM/bin:${PATH}
+COPY --from=devkitpro/devkitarm:latest /opt/devkitpro /opt/devkitpro
+# There's no way to copy ENV values from other stages properly:
+# https://github.com/moby/moby/issues/37345
+# Luckily in this case we know exactly what the values should be:
+ENV DEVKITPRO=/opt/devkitpro
+ENV DEVKITARM=${DEVKITPRO}/devkitARM
+ENV PATH=${DEVKITARM}/bin:${PATH}
 
 COPY --from=builder /tmp/citra.AppImage /usr/local/bin/citra
 COPY ./docker/sdl2-config.ini /app/
diff --git a/docker/download_citra.sh b/docker/download_citra.sh
index ec6699c..fd12cea 100755
--- a/docker/download_citra.sh
+++ b/docker/download_citra.sh
@@ -9,7 +9,7 @@ RELEASE_API="https://api.github.com/repos/citra-emu/citra-${CITRA_CHANNEL}/relea
 
 curl "${RELEASE_API}" |
     jq --raw-output '.assets[].browser_download_url' |
-    grep -E 'citra-linux-.*.tar.gz' |
+    grep -E 'citra-linux-.*[.]tar.gz' |
     xargs wget -O citra-linux.tar.gz
 
 tar --strip-components 1 -xvf citra-linux.tar.gz