AEM build time is a signficant problem,as it takes 1-2 hours for each of our 5 envs, and you cant deploy a built artifiact from one end (e.g. dev) into another (e.g. test). We have always done a full stack build, but I notice there is a front end build only. As AEM has front end (react etc) and backend (java, osgi files etc) in one repo, how does the bild process know if it should built font end only, or full stack? Presumably its unsafe to do FE, in case someone changed something in the backend.