🎉(all) bootstrap the Calendars project

This repository was forked from Drive in late December 2025 and
boostraped as a minimal demo of backend+caldav server+frontend
integration. There is much left to do and to fix!

src/frontend/Dockerfile

@@ -0,0 +1,72 @@
+FROM node:22-alpine AS frontend-deps
+
+WORKDIR /home/frontend/
+
+COPY ./package.json ./package.json
+COPY ./yarn.lock ./yarn.lock
+COPY ./apps/calendars/package.json ./apps/calendars/package.json
+COPY ./packages/open-calendar/package.json ./packages/open-calendar/package.json
+
+RUN yarn install --frozen-lockfile
+
+COPY .dockerignore ./.dockerignore
+# COPY ./.prettierrc.js ./.prettierrc.js
+#COPY ./packages/eslint-config-calendars ./packages/eslint-config-calendars
+COPY ./packages/open-calendar ./packages/open-calendar
+COPY ./apps/calendars ./apps/calendars
+
+# Build open-calendar package
+WORKDIR /home/frontend/packages/open-calendar
+RUN yarn build
+WORKDIR /home/frontend
+
+### ---- Front-end builder image ----
+FROM frontend-deps AS calendars
+
+WORKDIR /home/frontend/apps/calendars
+
+FROM frontend-deps AS calendars-dev
+
+WORKDIR /home/frontend/apps/calendars
+
+EXPOSE 3000
+
+RUN yarn build-theme
+
+# Build open-calendar package if dist doesn't exist, then start dev server
+CMD ["/bin/sh", "-c", "cd /home/frontend/packages/open-calendar && ([ -d dist ] || yarn build) && cd /home/frontend/apps/calendars && yarn dev"]
+
+# Tilt will rebuild calendars target so, we dissociate calendars and calendars-builder 
+# to avoid rebuilding the app at every changes.
+FROM calendars AS calendars-builder
+
+WORKDIR /home/frontend/apps/calendars
+
+ARG API_ORIGIN
+ENV NEXT_PUBLIC_API_ORIGIN=${API_ORIGIN}
+
+RUN yarn build
+
+# ---- Front-end image ----
+FROM nginxinc/nginx-unprivileged:alpine3.22 AS frontend-production
+
+# Upgrade system packages to install security updates
+USER root
+RUN apk update && \
+  apk upgrade && \
+  rm -rf /var/cache/apk/*
+
+# Un-privileged user running the application
+ARG DOCKER_USER
+USER ${DOCKER_USER}
+
+COPY --from=calendars-builder \
+    /home/frontend/apps/calendars/out \
+    /usr/share/nginx/html
+
+COPY ./apps/calendars/conf/default.conf /etc/nginx/conf.d
+COPY ./docker/files/usr/local/bin/entrypoint /usr/local/bin/entrypoint
+
+ENTRYPOINT [ "/usr/local/bin/entrypoint" ]
+
+CMD ["nginx", "-g", "daemon off;"]