Maestro is an open-source framework that makes UI and end-to-end testing for Android, iOS, and web apps simple and fast.
Write your first test in under five minutes using YAML flows and run them on any emulator, simulator, or browser.

Graphtage is a commandline utility and underlying library for semantically comparing and merging tree-like structures, such as JSON, XML, HTML, YAML, and CSS files.

Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.

µTask is an automation engine built for the cloud. It is:

simple to operate: only a postgres DB is required
secure: all data is encrypted, only visible to authorized users
extensible: you can develop custom actions in golang

µTask allows you to model business processes in a declarative yaml format. Describe a set of inputs and a graph of actions and their inter-dependencies: µTask will asynchronously handle the execution of each action, working its way around transient errors and keeping a trace of all intermediary states until completion.