diff --git a/Dockerfile b/Dockerfile
index 1d6829c..6c83337 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM gcc:12.3 AS builder
+FROM gcc:12.3 AS build
 RUN apt-get update && apt-get install -y \
     catch2 \
     cmake && \
@@ -11,7 +11,16 @@ RUN make build && \
     make test && \
     make package
 
-FROM ubuntu:latest AS tester
-COPY --from=builder /usr/local/src/templatelib/build/ /usr/local/src/templatelib/build/
-WORKDIR /usr/local/src/templatelib/build
+FROM scratch AS build-export
+COPY --from=build /usr/local/src/templatelib/build/templatelib-Linux.deb /
+WORKDIR /
+
+FROM ubuntu:latest AS test
+COPY --from=build /usr/local/src/templatelib/build/tests/integration/templatelib.i.t /usr/local/bin
+WORKDIR /usr/local/bin
+ENTRYPOINT [ "/usr/local/bin/templatelib.i.t" ]
+
+FROM ubuntu:latest AS run
+COPY --from=build /usr/local/src/templatelib/build/templatelib-Linux.deb /usr/local/bin
+WORKDIR /usr/local/bin
 RUN dpkg -i templatelib-Linux.deb
diff --git a/README.md b/README.md
index ed70c41..0100981 100644
--- a/README.md
+++ b/README.md
@@ -3,19 +3,18 @@ Template C/C++ library
 
 ## Build
 ```
-docker build [--target builder] -t templatelibcpp .
+docker build --target=build-export --output type=local,dest=./output .
 ```
 
 ## Test
 
 ### Unit
 ```
-docker build [--target builder] -t templatelibcpp .
+docker build --target build -t templatelib .
 ```
 
 ### Integration
 ```
-docker build [--target tester] -t templatelibcpp .
-docker run -it --rm templatelibcpp
-> ./tests/integration/templatelib.i.t
+docker build --target test -t templatelib .
+docker run -it --rm templatelib
 ```