native-messaging-c VS native-messaging-bash

Ultimately what I am trying to do is test the simplicity and efficiency of using a local server versus using Native Messaging, which I have working https://github.com/guest271314/native-messaging-c, https://github.com/guest271314/captureSystemAudio/blob/master/native_messaging/capture_system_audio/capture_system_audio.c.

Yes. I use Native Messaging to do that as well https://github.com/guest271314/native-messaging-c. Far less overhead cf. HTTP. Nonetheless I am trying to improve the implementation.

I would suggest sending valid JSON. Here is a Native Messaging host written in C which sends JSON to the client https://github.com/guest271314/native-messaging-c.

I will probably adjust the variable names in your code and publish here https://github.com/guest271314/native-messaging-c including link to your answer.

For the C version which is now just an echo of input https://github.com/guest271314/native-messaging-c/tree/main repeat steps 1.-6. Instead of pinning the icon to address bar, navigate back to chrome://extensions, click "service worker" which will open a DevTools window for the background MV3 ServiceWorker context, then run this code in the console

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.