Why do I suck at Dockerfiles?

Dockerfile

@@ -6,15 +6,17 @@ ARG MONGO_ENTRY_FILE=${MONGO_VERSION:-latest}
 ARG MONGO_VERSION=${MONGO_VERSION:-latest}
 
 ## mongo build stage
-FROM mongo:$MONGO_VERSION AS database
-ENV NODE_ENV $ENV
-COPY docker-entrypoint-initdb.d/mongo-init-$MONGO_ENTRY_FILE.sh ./docker-entrypoint-initdb.d/mongo-init.sh
+FROM mongo:${MONGO_VERSION} AS database
+ENV NODE_ENV=${ENV}
+ARG MONGO_ENTRY_FILE=${MONGO_ENTRY_FILE}
+ENV MONGO_VERSION=${MONGO_VERSION}
+COPY docker-entrypoint-initdb.d/mongo-init-${MONGO_ENTRY_FILE}.sh ./docker-entrypoint-initdb.d/mongo-init.sh
 
 ## stage one, build the service
 FROM node:20-bullseye-slim AS build
-ENV YARN_VERSION $YARN_VERSION
-ENV NODE_ENV development
-ENV NPM_TOKEN $NPM_TOKEN
+ENV YARN_VERSION=${YARN_VERSION}
+ENV NODE_ENV=development
+ENV NPM_TOKEN=${NPM_TOKEN}
 WORKDIR /home/node/app
 COPY .npmrc /root
 COPY .build.yarnrc.yml /root/.yarnrc.yml
@@ -24,9 +26,9 @@ RUN yarn build:production
 
 ## this is stage two , where the app actually runs
 FROM node:20-bullseye-slim AS containerize
-ENV YARN_VERSION $YARN_VERSION
-ENV NODE_ENV $ENV
-ENV NPM_TOKEN $NPM_TOKEN
+ENV YARN_VERSION=${YARN_VERSION}
+ENV NODE_ENV=${ENV}
+ENV NPM_TOKEN=${NPM_TOKEN}
 WORKDIR /home/node/app
 COPY .npmrc /root
 COPY .build.yarnrc.yml /root/.yarnrc.yml

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@mifi/auth-service",
-  "version": "1.0.9",
+  "version": "1.0.11",
   "author": "mifi (Mike Fitzpatrick)",
   "license": "MIT",
   "scripts": {