diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 000000000..123014908
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
diff --git a/.github/tas-check/1-get-build-url.sh b/.github/tas-check/1-get-build-url.sh
new file mode 100755
index 000000000..dd1fc8c65
--- /dev/null
+++ b/.github/tas-check/1-get-build-url.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+# Waits for Azure to be finished building, and writes the download link to /tmp/everest-pr-tas-check/download-link.txt.
+# Parameter: commit SHA
+
+set -xeo pipefail
+
+get_build_id() {
+	curl 'https://dev.azure.com/EverestAPI/Everest/_apis/build/builds?definitions=3&statusFilter=completed' \
+		| jq -r ".value | map(select(.sourceVersion == \"${1}\")) | .[].id"
+}
+
+BUILD_ID=`get_build_id "$1"`
+while [ "${BUILD_ID}" == "" ]; do
+	sleep 60
+	BUILD_ID=`get_build_id "$1"`
+done
+
+mkdir -p /tmp/everest-pr-tas-check
+echo -n "https://dev.azure.com/EverestAPI/Everest/_apis/build/builds/${BUILD_ID}/artifacts?artifactName=main&api-version=5.0&%24format=zip" > /tmp/everest-pr-tas-check/download-link.txt
\ No newline at end of file
diff --git a/.github/tas-check/2-1-install.sh b/.github/tas-check/2-1-install.sh
new file mode 100755
index 000000000..0f5300679
--- /dev/null
+++ b/.github/tas-check/2-1-install.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# Installs Everest from the branch to test, CelesteTAS and the mod that is going to be TASed.
+# Parameters: ID of the mod to be TASed, URL of the TAS files
+
+set -xeo pipefail
+
+docker build \
+	--build-arg "MAIN_BUILD_URL=`cat /tmp/everest-pr-tas-check/download-link.txt`" \
+	--build-arg "TAS_FILES_URL=$2" \
+	--build-arg "TAS_TO_RUN=$1" \
+	-t celeste .
diff --git a/.github/tas-check/2-2-install-inner.sh b/.github/tas-check/2-2-install-inner.sh
new file mode 100755
index 000000000..77c26f57b
--- /dev/null
+++ b/.github/tas-check/2-2-install-inner.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+# Installs Everest from the branch to test, CelesteTAS and the mod that is going to be TASed.
+# Run from within the Docker image, where Celeste is installed at /home/ubuntu/celeste.
+
+set -xeo pipefail
+
+# download Everest
+cd /home/ubuntu
+curl --fail -Lo everest.zip "${MAIN_BUILD_URL}"
+unzip everest.zip
+rm -v everest.zip
+
+# copy Everest files to Celeste install
+mv -fv main/* celeste/
+rm -rfv main
+
+# install Everest in headless mode
+cd celeste
+chmod -v u+x MiniInstaller-linux
+./MiniInstaller-linux headless
+
+# download TAS files
+cd ..
+curl --fail -Lo t.zip "${TAS_FILES_URL}"
+unzip t.zip
+rm -v t.zip
+
+# install CelesteTAS
+cd celeste/Mods
+curl --fail -Lo CelesteTAS.zip "https://github.com/EverestAPI/CelesteTAS-EverestInterop/releases/download/v3.45.1/CelesteTAS.zip"
+
+# install the mod that is going to be TASed, downloaded as a bundle zip containing the mod zip
+# and all of its dependencies (https://maddie480.ovh/celeste/bundle-download?id=${TAS_TO_RUN})
+# for simplicity's sake, Celeste-Bundle.zip exists but is an empty zip
+curl --fail -Lo t.zip "https://celestemodupdater.0x0a.de/pinned-mods/${TAS_TO_RUN}-Bundle.zip"
+unzip t.zip
+rm -v t.zip
\ No newline at end of file
diff --git a/.github/tas-check/3-run.sh b/.github/tas-check/3-run.sh
new file mode 100755
index 000000000..4439bede2
--- /dev/null
+++ b/.github/tas-check/3-run.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+# Runs the requested TAS and checks the result.
+# Parameter: path of the TAS to run
+
+set -xeo pipefail
+
+docker run \
+	--volume "/tmp/everest-pr-tas-check:/home/ubuntu/tas" \
+	--rm \
+	--name celeste celeste \
+	--sync-check-file "/home/ubuntu/$1" \
+	--sync-check-result /home/ubuntu/tas/result.json
+
+[ "`jq -r '.entries[].status' /tmp/everest-pr-tas-check/result.json`" == "success" ]
\ No newline at end of file
diff --git a/.github/tas-check/Dockerfile b/.github/tas-check/Dockerfile
new file mode 100644
index 000000000..6caf983e9
--- /dev/null
+++ b/.github/tas-check/Dockerfile
@@ -0,0 +1,5 @@
+FROM max480/everest:vanilla
+
+ARG MAIN_BUILD_URL TAS_FILES_URL TAS_TO_RUN
+COPY 2-2-install-inner.sh /tmp
+RUN /tmp/2-2-install-inner.sh && rm /tmp/2-2-install-inner.sh
\ No newline at end of file
diff --git a/.github/tas-check/run-locally.sh b/.github/tas-check/run-locally.sh
new file mode 100755
index 000000000..a21cf42d2
--- /dev/null
+++ b/.github/tas-check/run-locally.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+# Builds and runs the TAS locally, calling the same scripts as the pipeline in order to test them.
+# Requires Docker and jq.
+
+if [ "$1" == "" ] || [ "$2" == "" ]; then
+    echo "Usage: ./run-locally.sh [Celeste|StrawberryJam2021] [commit SHA]"
+    exit 1
+fi
+
+set -xeo pipefail
+
+case "$1" in
+    "Celeste")
+        TAS_URL="https://github.com/VampireFlower/CelesteTAS/archive/60b1680e61e43ec4681d7c9053d249491e0fe905.zip"
+        TAS_PATH="CelesteTAS-60b1680e61e43ec4681d7c9053d249491e0fe905/0 - 100%.tas"
+        ;;
+
+    "StrawberryJam2021")
+        TAS_URL="https://github.com/VampireFlower/StrawberryJamTAS/archive/fc7397c26f4d15468d4a8a3e58e7cc3d62d21223.zip"
+        TAS_PATH="StrawberryJamTAS-fc7397c26f4d15468d4a8a3e58e7cc3d62d21223/0-SJ All Levels.tas"
+        ;;
+
+    *)
+        echo "Unknown TAS: $1"
+        exit 1
+esac
+
+cd "`dirname "$0"`"
+./1-get-build-url.sh "$2"
+./2-1-install.sh "$1" "${TAS_URL}"
+./3-run.sh "${TAS_PATH}"
diff --git a/.github/workflows/tas-sync-check.yml b/.github/workflows/tas-sync-check.yml
new file mode 100644
index 000000000..76f5cb4d4
--- /dev/null
+++ b/.github/workflows/tas-sync-check.yml
@@ -0,0 +1,39 @@
+name: TAS Sync Check
+
+on:
+  pull_request:
+    branches: [dev]
+
+jobs:
+  check:
+    strategy:
+      matrix:
+        tas:
+          - name: Celeste 100%
+            mod: Celeste
+            url: "https://github.com/VampireFlower/CelesteTAS/archive/60b1680e61e43ec4681d7c9053d249491e0fe905.zip"
+            path: "CelesteTAS-60b1680e61e43ec4681d7c9053d249491e0fe905/0 - 100%.tas"
+
+          - name: Strawberry Jam All Levels
+            mod: StrawberryJam2021
+            url: "https://github.com/VampireFlower/StrawberryJamTAS/archive/fc7397c26f4d15468d4a8a3e58e7cc3d62d21223.zip"
+            path: "StrawberryJamTAS-fc7397c26f4d15468d4a8a3e58e7cc3d62d21223/0-SJ All Levels.tas"
+
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    name: ${{ matrix.tas.name }}
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Wait for Azure build on commit ${{ github.sha }}
+      run: cd .github/tas-check && ./1-get-build-url.sh "${{ github.sha }}"
+
+    - name: Install Everest and ${{ matrix.tas.mod }}
+      run: cd .github/tas-check && ./2-1-install.sh "${{ matrix.tas.mod }}" "${{ matrix.tas.url }}"
+
+    - name: Run TAS at ${{ matrix.tas.path }}
+      run: cd .github/tas-check && ./3-run.sh "${{ matrix.tas.path }}"