Add docker cli

Dockerfile

@@ -17,6 +17,7 @@ RUN pacman -Syu --noconfirm && \
       bash \
       ca-certificates \
       curl \
+      docker \
       fish \
       fuse3 \
       git \

docker-compose.yml

@@ -29,6 +29,7 @@ services:
       RCLONE_CACHE_MAX_SIZE: 4G
       RCLONE_EXTRA_ARGS: ${RCLONE_EXTRA_ARGS:-}
       UNSHACKLE_APP_DIR: /opt/unshackle
+      DOCKER_HOST: ${DOCKER_HOST:-unix:///run/user/1000/docker.sock}
     cap_add:
       - NET_ADMIN
       - NET_RAW
@@ -41,6 +42,7 @@ services:
     volumes:
       - .:/workspace
       - /tmp:/tmp
+      - ${XDG_RUNTIME_DIR:-/run/user/1000}/docker.sock:${XDG_RUNTIME_DIR:-/run/user/1000}/docker.sock
       - tailscale-state:/var/lib/tailscale
     command: fish
   firefox: