AngularJS is a JavaScript-based open-source front-end web application framework mainly maintained by Google and by a community of individuals and corporations to address many of the challenges encountered in developing single-page applications.
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.
ERPNext is an web based, open source application that helps small and medium sized business manage their Accounting, Inventory, Sales, Purchase, Manufacturing, Projects, Customer Support and Website.
GitLab is a web-based Git-repository manager with wiki, issue-tracking and CI/CD pipeline features, using an open-source license, developed by GitLab Inc.
Jenkins is an open source automation server written in Java. Jenkins helps to automate the non-human part of the software development process, with continuous integration and facilitating technical aspects of continuous delivery. It is a server-based system that runs in servlet containers such as Apache Tomcat.