Martian is a library for building custom HTTP/S proxies
...If you use a Go version that does not support modules, this will break you. The latest version without Go modules support was tagged v2.1.0. For logging of requests and responses a logging modifier is available or HAR logs are available if the -har flag is used. Once Martian is running, you need to configure its behavior.
Keypress is a JavaScript utility (Apache‑2.0) for defining keyboard combos, sequences, and custom modifiers. Popular in game development and interactive web apps, it supports keydown/keyup, multiple modifiers, sequence combinations, and offers ~9 KB footprint with zero dependencies.