diff --git a/.dockerignore b/.dockerignore
index 37ec1c9ff1dd..f630b719f083 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,10 +1,18 @@
-*
-!**/*.so
-!**/*.dll
-!*.rsc
-!*.dmb
-!maps/*
-!config/*
-!tools/*
-!map_config/*
-!nano/*
\ No newline at end of file
+/.git
+/*.txt
+/tmp
+/data
+/cfg
+/scripts
+/.gitlab
+/.vscode
+/.gitlab-ci.yml
+/tools/dmitool
+/tools/runtimes
+/local.db*
+*.dll
+*.exe
+*.bat
+*.rsc.dyn
+*.log
+*.lk
diff --git a/.gitattributes b/.gitattributes
index 5a4ddd7c5e29..24b7e0c3934b 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -13,3 +13,6 @@ html/changelog.html merge=union
 *.dm text eol=lf
 *.dmm text eol=lf
 *.dme text eol=lf
+*.yml text eol=lf
+*.sh text eol=lf
+Dockerfile eol=lf
diff --git a/.gitignore b/.gitignore
index 6e5d6b933cd5..0c461cefc378 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@ Thumbs.db
 *.db-wal
 data/
 cfg/
+!cfg/.keep
 tmp/
 dmdoc/
 tools/Runtime Condenser/Input.txt
diff --git a/Dockerfile b/Dockerfile
index bc8c50ed68e0..a5e49b90163a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,19 @@
-ARG BYOND_BASE_IMAGE=i386/ubuntu:bionic
+# TODO: Replace 80% of that cache handling with juke tasks
+# so contributors can have reproducible test builds without needing docker...
+# Also will allow to properly handle building game in map checking mode
 
-FROM ${BYOND_BASE_IMAGE} AS byond
-RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y make man curl unzip libssl-dev
+ARG BYOND_BASE_IMAGE=i386/ubuntu:bionic
 ARG BYOND_MAJOR=513
 ARG BYOND_MINOR=1542
+ARG NODE_VERSION=15
+ARG PYTHON_VERSION=3.7
+
+# Base BYOND image
+FROM --platform=linux/386 ${BYOND_BASE_IMAGE} AS byond
+SHELL ["/bin/bash", "-c"]
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y make man curl unzip libssl-dev
+ARG BYOND_MAJOR
+ARG BYOND_MINOR
 ARG BYOND_DOWNLOAD_URL=https://secure.byond.com/download/build/${BYOND_MAJOR}/${BYOND_MAJOR}.${BYOND_MINOR}_byond_linux.zip
 RUN curl ${BYOND_DOWNLOAD_URL} -o byond.zip \
     && unzip byond.zip \
@@ -12,6 +22,7 @@ WORKDIR /byond
 RUN make here
 RUN DEBIAN_FRONTEND=noninteractive apt-get clean && rm -rf /var/lib/apt/lists/*
 
+# Legacy GitLab CI packaging container, using pre-built game in pipeline
 FROM byond AS cm-runner
 ENV DREAMDAEMON_PORT=1400
 RUN mkdir -p /cm/data
@@ -19,11 +30,76 @@ WORKDIR /cm
 COPY map_config map_config
 COPY maps maps
 COPY nano nano
-ARG RUSTG_LIBRARY_FILE=librust_g.so
-ADD ${RUSTG_LIBRARY_FILE} librust_g.so
+COPY librust_g.so .
 COPY tools/runner-entrypoint.sh /entrypoint.sh
 RUN chmod u+x /entrypoint.sh
-ARG DM_PROJECT_NAME=ColonialMarinesALPHA
-COPY ${DM_PROJECT_NAME}.dmb application.dmb
-COPY ${DM_PROJECT_NAME}.rsc application.rsc
+COPY ColonialMarinesALPHA.dmb application.dmb
+COPY ColonialMarinesALPHA.rsc application.rsc
 ENTRYPOINT ["/entrypoint.sh"]
+
+# Image used for building the game with DreamMaker
+FROM byond AS cm-builder
+ARG DM_PROJECT_NAME
+ARG PYTHON_VERSION
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y python${PYTHON_VERSION} python3-pip
+RUN pip3 install python-dateutil requests beautifulsoup4 pyyaml
+RUN DEBIAN_FRONTEND=noninteractive apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# TGUI deps prep (cache stage - keep only base structure)
+FROM node:${NODE_VERSION}-buster AS tgui-thin
+WORKDIR /tgui
+COPY tgui .
+RUN rm -rf docs public
+RUN find packages \! -name "package.json" -mindepth 2 -maxdepth 2 -print | xargs rm -rf
+
+# TGUI deps fetch (cache stage - keep deps as standalone layer)
+FROM node:${NODE_VERSION}-buster AS tgui-deps
+COPY --from=tgui-thin tgui /tgui
+WORKDIR /tgui
+RUN chmod u+x bin/tgui && bin/tgui --deps-only
+
+# TGUI builder
+FROM node:${NODE_VERSION}-buster AS tgui-build
+WORKDIR /tgui
+COPY --from=tgui-deps /tgui/.yarn/cache .yarn/cache
+COPY tgui .
+RUN chmod u+x bin/tgui && bin/tgui --deps-check && bin/tgui
+RUN rm -rf .yarn/cache
+
+# More cache shenanigans, trim uneeded build context for layer caching DM build
+# this ensures modifying eg. dynamic maps don't force a game rebuild, as we just add them at end regardless
+# *.txt is the changelog date marker (uses gitlab project ID)
+FROM byond AS cm-cache
+COPY . /build
+WORKDIR /build
+RUN rm -rf tgui config strings maps map_config tools *.txt
+# Copy back the few files we need during DM build
+COPY maps/_basemap.dm maps/
+COPY maps/map_files/generic maps/map_files/generic
+
+# Actual game building stage. We include tgui here because it'll be packed in RSC file
+FROM cm-builder AS cm-build
+COPY --from=cm-cache /build /build
+WORKDIR /build
+COPY --from=tgui-build /tgui/public tgui/public
+RUN source /byond/bin/byondsetup && DreamMaker ColonialMarinesALPHA.dme
+
+# Deployment container piecing everything together for use
+FROM byond AS deploy
+ENV DREAMDAEMON_PORT=1400
+RUN mkdir -p /cm/data
+COPY tools/runner-entrypoint.sh /entrypoint.sh
+RUN chmod u+x /entrypoint.sh
+RUN useradd -ms /bin/bash byond
+RUN chown -R byond:byond /byond /cm /entrypoint.sh
+WORKDIR /cm
+USER byond
+COPY librust_g.so .
+COPY config config
+COPY map_config map_config
+COPY strings strings
+COPY nano nano
+COPY maps maps
+COPY --from=cm-build /build/ColonialMarinesALPHA.rsc application.rsc
+COPY --from=cm-build /build/ColonialMarinesALPHA.dmb application.dmb
+ENTRYPOINT [ "/entrypoint.sh" ]
diff --git a/cfg/.keep b/cfg/.keep
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/code/controllers/configuration/entries/general.dm b/code/controllers/configuration/entries/general.dm
index 491866a2c14e..aa3b9d87f6c8 100644
--- a/code/controllers/configuration/entries/general.dm
+++ b/code/controllers/configuration/entries/general.dm
@@ -29,9 +29,9 @@ Basics, the most important.
 
 /datum/config_entry/string/dburl
 
-// Shutdown instead of restarting
+/// Shutdown server instead of actually restarting when using /world/Reboot()
 /datum/config_entry/flag/no_restarts
-	config_entry_value = FALSE
+	config_entry_value = TRUE
 
 /// URL for the CentCom Galactic Ban DB API
 /datum/config_entry/string/centcom_ban_db
diff --git a/config/example/dbconfig_docker.txt b/config/example/dbconfig_docker.txt
new file mode 100644
index 000000000000..fa7496a85f7c
--- /dev/null
+++ b/config/example/dbconfig_docker.txt
@@ -0,0 +1,19 @@
+# file to use with the bundled docker-compose environment, drop it as config/dbconfig.txt
+
+# server adapter
+DB_PROVIDER brsql
+
+# server address
+DB_ADDRESS cm13-mysql
+
+# server port
+DB_PORT 3306
+
+# server db
+DB_DATABASE cm13
+
+# server login
+DB_USERNAME cm13
+
+# server password
+DB_PASSWORD cm13testing
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 000000000000..eee6ff2cfcfa
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,56 @@
+version: '3.6'
+
+services:
+  # You will probably want to copy config/example/dbconfig_docker.txt to config/dbconfig.txt to use this
+  cm13-mysql:
+    image: mysql:8
+    command: mysqld --default-authentication-plugin=mysql_native_password
+    restart: always
+    ports:
+      - 3306:3306
+    environment:
+      MYSQL_DATABASE: cm13
+      MYSQL_USER: cm13
+      MYSQL_PASSWORD: cm13testing
+      MYSQL_ROOT_PASSWORD: cm13testingroot
+    volumes:
+      - cm13-mysql:/var/lib/mysql
+    networks:
+      - cm13-net
+
+  cm13-game:
+    build:
+      context: .
+      target: deploy
+    ports:
+      - 51400:1400
+    volumes:
+      - type: bind
+        source: ./cfg
+        target: /usr/local/byond/cfg
+      - type: bind
+        source: ./data
+        target: /cm/data
+      - type: bind
+        source: ./config
+        target: /cm/config
+        read_only: true
+      - type: bind
+        source: ./map_config
+        target: /cm/map_config
+        read_only: true
+      - type: bind
+        source: ./maps
+        target: /cm/maps
+        read_only: true
+    networks:
+      - cm13-net
+    depends_on:
+      - cm13-mysql
+
+volumes:
+  cm13-mysql:
+
+networks:
+  cm13-net:
+    driver: bridge
diff --git a/tgui/bin/tgui b/tgui/bin/tgui
index 365b404b2312..c88d27fa6bef 100644
--- a/tgui/bin/tgui
+++ b/tgui/bin/tgui
@@ -50,6 +50,18 @@ task-install() {
   yarn install
 }
 
+## Install deps in CI mode
+task-install-deps() {
+  cd "${base_dir}"
+  yarn install --immutable
+}
+
+## Check deps in CI mode
+task-install-check() {
+  cd "${base_dir}"
+  yarn install --immutable --immutable-cache
+}
+
 ## Runs webpack
 task-webpack() {
   cd "${base_dir}"
@@ -124,6 +136,16 @@ task-merge-bundle() {
 ## Main
 ## --------------------------------------------------------
 
+if [[ ${1} == "--deps-only" ]]; then
+  task-install-deps
+  exit 0
+fi
+
+if [[ ${1} == "--deps-check" ]]; then
+  task-install-check
+  exit 0
+fi
+
 if [[ ${1} == "--merge"* ]]; then
   if [[ ${1} == "--merge=bundle" ]]; then
     shift 1
diff --git a/tools/runner-entrypoint.sh b/tools/runner-entrypoint.sh
index 69fe97c8ce49..571e0b1673bd 100644
--- a/tools/runner-entrypoint.sh
+++ b/tools/runner-entrypoint.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 source /byond/bin/byondsetup
-DreamDaemon application.dmb ${DREAMDAEMON_PORT} -trusted
\ No newline at end of file
+exec DreamDaemon application.dmb ${DREAMDAEMON_PORT} -trusted