diff --git a/fejctl b/fejctl
index 8f3eb74..17a43a0 100755
--- a/fejctl
+++ b/fejctl
@@ -1,35 +1,147 @@
 #!/usr/bin/env bash
 
-# This script is a helpful utility for developing fej inside Docker.
+image='chewingbever/fej'
 
-# Default values
-image="chewingbever/fej"
-mode="dev"  # Should be either 'rel' or 'dev'
-action=""
-attach="--detach"
-cmd="b"
-bin="server"
+# Creates the needed images
+#
+# $1: wether to build the debug or the release image (default debug)
+function create_images() {
+    # First, we build the builder
+    DOCKER_BUILDKIT=1 docker build \
+        -f docker/Dockerfile.builder \
+        -t "$image-builder:latest" .
 
-# Calculated variables
-patch_version=`grep -Po '(?<=version = ").*(?=")' Cargo.toml | head -n1`
-major_version=`echo "$patch_version" | sed -E 's/([0-9]+)\.([0-9]+)\.([0-9]+)/\1/'`
-minor_version=`echo "$patch_version" | sed -E 's/([0-9]+).([0-9]+).([0-9]+)/\1.\2/'`
-branch=`git rev-parse --abbrev-ref HEAD`
+    if [[ "$1" = "rel" ]]; then
+        DOCKER_BUILDKIT=1 docker build \
+            -t "$image:latest" \
+            -f docker/Dockerfile.rel .
 
+    else
+        # Then, we create the debug image
+        DOCKER_BUILDKIT=1 docker build \
+            -t "$image:dev" \
+            -f docker/Dockerfile.dev .
+    fi
+}
 
+# Execute the debug image (must be built first)
+#
+# $@: the arguments to pass to the image (passed as arguments to cargo)
+function run_image() {
+    # Run the database image
+    docker run --rm \
+        --detach \
+        --name fej_db \
+        --network fej \
+        -p 5432:5432 \
+        -e 'POSTGRES_DB=fej' \
+        -e 'POSTGRES_USER=fej' \
+        -e 'POSTGRES_PASSWORD=fej' \
+        -v 'fej_db-data:/var/lib/postgresql/data' \
+        postgres:13-alpine
 
-function main() {
-    # Parse the flags
-    while getopts ":i:m:a:l" c; do
-        case $c in
-            i ) image="$OPTARG" ;;
-            m ) mode="$OPTARG" ;;
-            a ) action="$OPTARG" ;;
-            l ) attach="" ;;
-            ? ) exit 1 ;;
-        esac
+    # Run the binary image
+    docker run \
+        --detach \
+        --rm \
+        --interactive \
+        --tty \
+        --publish 8000:8000 \
+        --name fej \
+        --env-file .env.container \
+        --network fej \
+        -v 'fej_build-cache:/usr/src/app/target' \
+        -v 'fej_registry-cache:/root/.cargo/registry' \
+        "$image:dev" "$@"
+}
+
+# Attach to the fej container
+function logs() {
+    docker logs -f fej
+}
+
+# Builds the given binary
+#
+# $1: the binary to build
+function build() {
+    create_images
+    run_image build --bin "$1"
+    logs
+}
+
+# Runs the given binary
+#
+# $1: the binary to run
+function run() {
+    create_images
+    run_image run --bin "$1"
+    logs
+}
+
+# Runs the tests
+function tests() {
+    create_images
+    run_image test --no-fail-fast
+    logs
+}
+
+# Stops both containers
+function stop() {
+    docker stop fej_db
+    docker stop -t 0 fej
+}
+
+function run_release() {
+    echo "Not implemented"
+}
+
+# Tags & pushes the release version to Docker Hub
+function publish() {
+    branch=`git rev-parse --abbrev-ref HEAD`
+
+    if [[ "$branch" != master ]]; then
+        >&2 echo "You can only publish from master."
+        exit 2
+    fi
+
+    patch_version=`grep -Po '(?<=version = ").*(?=")' Cargo.toml | head -n1`
+    major_version=`echo "$patch_version" | sed -E 's/([0-9]+)\.([0-9]+)\.([0-9]+)/\1/'`
+    minor_version=`echo "$patch_version" | sed -E 's/([0-9]+).([0-9]+).([0-9]+)/\1.\2/'`
+    tags=("latest" "$patch_version" "$minor_version" "$major_version")
+
+    for tag in "${tags[@]}"; do
+        # Create the tag
+        docker tag "$image:$tags" "$image:$tag"
+
+        # Push the tag
+        docker push "$image:$tag"
+
+        # Remove the tag again, if it's not the main tag
+        [[ "$tag" != "$tags" ]] && docker rmi "$image:$tag"
     done
-    shift $((OPTIND-1))
+
+}
+
+# Entrypoint to the script
+#
+# $1: action to perform, defaults to 'build'
+# $2: binary to use, defaults to 'server'
+function main() {
+    # Default values
+    cmd="${1:-build}"
+    bin="${2:-server}"
+
+    case $cmd in
+        b | build ) build "$bin" ;;
+        br | build-release ) create_images rel ;;
+        r | run ) run "$bin" ;;
+        rr | run-release ) run_release ;;
+        p | push | publish ) publish ;;
+        t | test ) tests ;;
+        s | stop ) stop ;;
+        p | push | publish ) publish ;;
+        * ) >&2 echo "Invalid command."; exit 1 ;;
+    esac
 }
 
 main "$@"