Actionsflow : Free IFTTT/Zapier alternative for developers to automate their workflows based on Github actions
Glances : Glances is a cross-platform curses-based system monitoring tool written in Python.
New Relic : New Relic’s SaaS-based Application Performance Monitoring helps you build, deploy, and maintain great web software.
Also, server monitoring, and more.
Packer : Packer is a tool for creating machine and container images for multiple platforms from a single source configuration.
SlimerJS : A scriptable browser for Web developers
Free open source web page change detection. Simply monitor which websites had a text change.