native-messaging-bash VS requestNativeScripts

I use a Bash start up script every few days when the experiments I run wind up freezing tip-of-tree Chromium or Nightly or the OS itself. The script fetches lastest Firefox Nightly, Chromium Dev Channel installs libtool, libcurl4-openssl-dev, texinfo, cmake, bleachbit, espeak-ng, python3-speechd mpv, git, libssl-dev, clang (or build-essential). I use git frequently. I also wrote a Bash Native Messaging host to communicate from the browser to the local shell script that is W.I.P. https://github.com/guest271314/native-messaging-bash.

Here is a Native Messaging host written in Bash https://github.com/guest271314/native-messaging-bash that you can write stdin to and get stdout from in the browser.

This is how you install and test Native Messaging host, substitute Bash script https://github.com/guest271314/native-messaging-bash and names for for Node.js host https://github.com/guest271314/native-messaging-nodejs.

Bash: https://github.com/guest271314/native-messaging-bash/blob/main/nm_bash.sh

No folders need to be edited. It is not necessary to download a binary. A Native Messaging host using Bash https://github.com/guest271314/native-messaging-bash; I also wrote Native Messaging hosts in C, C++, and QuickJS https://github.com/GoogleChrome/developer.chrome.com/issues/3718#issuecomment-1250341188; others have written Native Messaging hosts in PHP, Python, etc. You should be able to use C# or whatever is the shell on *indows to achieve the same result.

That is already possible using just window.open() with a local server or WebRTC, or Web Bluetooth, or WebTransport, or Fetch, e.g., without using extension code https://github.com/guest271314/requestNativeScripts/blob/master/Explainer.md, and with extension code using Native Messaging https://github.com/guest271314/sw-transfer-stream, https://github.com/guest271314/offscreen-webrtc.

Technically you can use a variety of means to execute arbitrary shell scripts. One approach is to use inotifywait to check for file changes, which can be written to local filesystem using File API and where implemented File System Access API, for an overview of this particular approach see https://github.com/guest271314/requestNativeScripts/blob/master/Explainer.md, for implementation see https://github.com/guest271314/captureSystemAudio#usage, where I use the process to execute PulseAudio's parec to capture system audio and stream the raw PCM to the browser in real-time by opening and closing local files.