fix

Dockerfile.release

@@ -1,28 +1,25 @@
 # syntax=docker/dockerfile:1
 
+# The build argument `APP` is used to select the appropriate binary
+# for the target OS.
+# The binary specified by `APP` must exist in the `dist-files` stage.
 ARG APP=${APP:-pebble}
 
 # Set the base image dynamically based on the target OS
-FROM --platform=${TARGETPLATFORM} \
-    alpine AS linux-base
-FROM --platform=${TARGETPLATFORM} \
-    mcr.microsoft.com/windows/nanoserver:ltsc2022 AS windows-base
+FROM --platform=${TARGETPLATFORM} alpine AS linux-base
+FROM --platform=${TARGETPLATFORM} mcr.microsoft.com/windows/nanoserver:ltsc2022 AS windows-base
 
 # Use build arguments to select the appropriate binary for Linux
 FROM linux-base AS linux
 ARG APP
-ARG TARGETOS
-ARG TARGETARCH
-COPY --from=dist-files /${APP} /
-CMD [ "${APP}" ]
+COPY --from=dist-files /${APP} /app
+CMD /app
 
 # Use build arguments to select the appropriate binary for Windows
 FROM windows-base AS windows
 ARG APP
-ARG TARGETOS
-ARG TARGETARCH
-COPY --from=dist-files /${APP}.exe /
-CMD [ "${APP}.exe" ]
+COPY --from=dist-files /${APP}.exe /app.exe
+CMD /app.exe
 
 # Final stage: dynamically select between Linux and Windows stages based on TARGETOS argument
 FROM ${TARGETOS} AS final