/etc/environment no longer works for PATH

Dockerfile

@@ -38,8 +38,8 @@ RUN wget -nv -O- https://dl.winehq.org/wine-builds/winehq.key | APT_KEY_DONT_WAR
     && dpkg --add-architecture i386 \
     && apt-get update \
     && DEBIAN_FRONTEND="noninteractive" apt-get install -y --install-recommends wine-${WINE_BRANCH} \
-    && rm -rf /var/lib/apt/lists/* \
-    && sed -i -E "s:PATH=\"?([^\"]*)\"?:PATH=/opt/wine-stable/bin\:\1:g" /etc/environment
+    && rm -rf /var/lib/apt/lists/*
+ENV PATH "/opt/wine-stable/bin:$PATH"
 
 COPY entrypoint.sh /usr/bin/entrypoint
 
@@ -68,7 +68,6 @@ COPY tools/* /root/.wine/drive_c/windows/system32/
 COPY VisualStudioMock/bin/Release/net472/VisualStudioMock.exe /root/.wine/drive_c/VisualStudioMock.exe
 
 RUN set -x -e; \
-    export PATH=/opt/wine-stable/bin:$PATH; \
 		# Initialize wine
     # HACK for Wine 10 bug where the wineboot --init ends with "run_wineboot boot event wait timed out" (https://bugs.mandrivalinux.com.narkive.com/hFZTjKnl/bug-58914-wine-new-wine-hangs-while-creating-initial-configuration-in-wine)
     #   DISPLAY= prevents access to the display and allows the init to complete