Apache is a free and open-source cross-platform web server software.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Bunny Fonts is an open-source, privacy-first web font platform designed to put privacy back into the internet.
Calendly is an app for scheduling appointments, meetings, and events.
Heroku is a cloud platform as a service (PaaS) supporting several programming languages.