Building

ssh -p 2222 -i ~/SailfishOS/vmshare/ssh/private_keys/engine/mersdk mersdk@localhost

mb2 -t SailfishOS-3.0.2.8-armv7hl build

docker run -it -d --name sailsdk --mount type=bind,source="$(pwd)",target=/home/nemo/build sailsdk:latest /bin/bash
# or
docker start sailsdk

docker exec sailsdk mb2 -t SailfishOS-3.0.2.8-armv7hl build