Unable to find .so files for OS-level hotword detection in Flutter using Snowboy

[riteshraav]

Description

I am currently working on integrating Snowboy with a Flutter app to enable hotword detection.

I was able to:

• Use a custom .pmdl file for my hotword.
• Use the provided .res files.
• Successfully implement in-app hotword detection (service inside the Flutter app).

However, I am blocked because:

• I cannot find the native .so libraries (libsnowboy-detect.so, etc.) that are required for Android integration.
• Without these .so files, I cannot perform detection at the OS-level (outside the Flutter app lifecycle).
• My goal is to make the hotword detection run similar to Google Assistant, where detection works even when the app is in the background or closed.

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What I Need Help With

1. Where can I find the .so libraries for Android (ARM/ARM64/x86)?
2. Is there a recommended way to build these .so files from source using the provided swig/Android folder?
3. If .so files are no longer maintained, what is the best practice for running Snowboy (or a replacement) at the OS level in Flutter?

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Environment

• Flutter (stable channel)
• Android (target SDK 34)
• Snowboy repo fork: [your repo or upstream repo link]

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Additional Notes

• I already tried building using the Makefile under swig/Android, but faced issues with missing NDK setup and .so generation.
• If .so is not available, I would appreciate guidance on alternative approaches for OS-level hotword detection in Flutter.

Thanks in advance