Graphics reffers to graphical programming, typically referring to writing shaders or configuring rendering pipelines to acheive a particular appearance on-screen.
Procedural generation is a technique used to generate parts of a game or interaction semi-randomly, to allow for greater replayability and design speed.
RxJS is a library for reactive programming using Observables, to make it easier to compose asynchronous or callback-based code.
shell script is a command line scripting language useful for building simple CLI tools that can run anywhere
Tooling is anything developed with the goal of accelerating further design and development.