ActiveCampaign is a design sales workflows based on behavioral logic that combine automated & manual actions, with custom pipelines, sales stages, & tasks.
GNU Make is a tool which controls the generation of executables and other non-source files of a program from the program's source files. Make gets its knowledge of how to build program from a file called the makefile, which lists each of the non-source files and how to compute it from other files.
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
Gmail is a free, advertising-supported email service offered as part of Google's G Suite, with 15GB of storage, color-coded inbox filters and unsend button.