The github doesn't really explain what Frida is, so I'm linking to the main project for Frida. [1] This looks like a well developed "tracing" instrumentation project that is cross platform. Applicable for reverse engineers, and debuggers. I could see myself using this for windows apps where I can't install eBPF for instance!
"So what is Frida, exactly?
It’s Greasemonkey for native apps, or, put in more technical terms, it’s a dynamic code instrumentation toolkit. It lets you inject snippets of JavaScript or your own library into native apps on Windows, macOS, GNU/Linux, iOS, Android, and QNX. Frida also provides you with some simple tools built on top of the Frida API. These can be used as-is, tweaked to your needs, or serve as examples of how to use the API."
"So what is Frida, exactly? It’s Greasemonkey for native apps, or, put in more technical terms, it’s a dynamic code instrumentation toolkit. It lets you inject snippets of JavaScript or your own library into native apps on Windows, macOS, GNU/Linux, iOS, Android, and QNX. Frida also provides you with some simple tools built on top of the Frida API. These can be used as-is, tweaked to your needs, or serve as examples of how to use the API."
[1]: https://frida.re/