Set up docker container

I am not able to get the container (https://hub.docker.com/r/particle/buildpack-particle-firmware/) up and running. What version should I be using?

Errors:

USER$ export PROJECT_DIR=/Users/User/Desktop/file

USER$ export PLATFORM_ID=6

USER$ export VERSION=0.4.5

USER$ docker run --rm \
>   -v $PROJECT_DIR:/input \
>   -v $PROJECT_DIR:/output \
>   -e PLATFORM_ID=$PLATFORM_ID \
>   particle/buildpack-particle-firmware:$VERSION
Unable to find image 'particle/buildpack-particle-firmware:0.4.5' locally
docker: Error response from daemon: manifest for particle/buildpack-particle-firmware:0.4.5 not found.
See 'docker run --help'.

USER$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

USER$ docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

USER$ docker images
REPOSITORY                             TAG                 IMAGE ID            CREATED             SIZE
particle/buildpack-particle-firmware   latest              f8acaef9361d        2 days ago          735MB

USER$ docker pull particle/buildpack-particle-firmware:0.4.5
Error response from daemon: manifest for particle/buildpack-particle-firmware:0.4.5 not found

USER$ docker pull particle/buildpack-particle-firmware
Using default tag: latest
latest: Pulling from particle/buildpack-particle-firmware
Digest: sha256:12f1546eeeb672a7948720ea949e33eee2a301c177d886338be493c6f28b9f60
Status: Image is up to date for particle/buildpack-particle-firmware:latest

Nevermind – looks like I can just use the latest version.