The easiest start is with docker:(adjust the docker-compose.yml file for domainnnames, usernames and passwords)

in the docker directory:
docker-compose -p moqui up -d

will create all instances required, taking the images from hub.docker.com

to run locally:
git clone https://github.com/growerp/moqui-framework.git moqui && cd moqui
./gradlew getRuntime
git clone https://github.com/growerp/GrowERP-Mobile.git runtime/component/backend
rm -rf runtime/backend/templateWebsite
git clone https://github.com/growerp/PopCommerce.git runtime/component/PopCommerce
git clone https://github.com/growerp/mantle-udm.git runtime/component/mantle-udm
git clone https://github.com/growerp/mantle-usl.git runtime/component/mantle-usl
git clone https://github.com/growerp/SimpleScreens.git runtime/component/SimpleScreens
git clone https://github.com/growerp/moqui-fop.git runtime/component/moqui-fop
./gradlew load
java -jar moqui.war
browser: http://localhost:8080/vapps 

the mobile frontends can be downloaded here: 
--------------------------------------------
ecommerce flutter: growerp branch ecommerce: https://github.com/growerp/growerp/ecommerce
hotel flutter: growerp branch hotel: https://github.com/growerp/growerp/hotel
restaurant NativescriptVue: https://github.com/growerp/GrowERP-Mobile