You'll need to install iSH
Then...
echo https://dl-cdn.alpinelinux.org/alpine/v3.16/main > /etc/apk/repositories
echo https://dl-cdn.alpinelinux.org/alpine/v3.16/community >> /etc/apk/repositories
apk upgrade
apk add micropython --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing