Trying multistage builds to make both workflow and capability. It happens but it isn't good

Condaless.dockerfile

-FROM python:3.8-slim
-
-# We happen to expose this port
-EXPOSE 3456:tcp
+FROM python:3.8-slim AS common
 
 # Environment variables
 ENV PIP_NO_CACHE_DIR false
@@ -19,6 +16,9 @@ RUN apt-get update \
 # Get the code into the image
 WORKDIR /code
 COPY . .
+
+FROM common AS workflow
+EXPOSE 3456
 WORKDIR /code/services/workflow
 
 # Python library installation
@@ -26,3 +26,13 @@ RUN pip install -r requirements.txt \
     && python setup.py develop
 
 ENTRYPOINT pserve --reload development.ini
+
+FROM common AS capability
+EXPOSE 3457
+WORKDIR /code/services/capability
+
+# Python library installation
+RUN pip install -r requirements.txt \
+    && python setup.py develop
+
+ENTRYPOINT pserve --reload development.ini
\ No newline at end of file

services/capability/requirements.txt

+# This file is intended to support the Condaless.dockerfile, not for actual development
+# DO NOT MODIFY THIS FILE, THIS IS FOR DOCKER ONLY!
+
+-e ../../shared/schema
+-e ../../shared/channels
+-e ../../shared/workspaces
+-e ../../apps/cli/utilities/wf_monitor
+
+pycapo == 0.3.0
+pyramid == 1.10
+pyramid_beaker == 0.8
+pyramid_debugtoolbar == 4.5
+pyramid_retry == 2.1.1
+pyramid_tm == 2.2.1
+requests == 2.23
+sqlalchemy == 1.3
+waitress == 1.4
+zope.sqlalchemy == 1.1