Some questions - Githubissues

Okay, not really an issue, but just a few questions about this project's internal design and goals, since I think I'm going to dive deeper and perhaps fix a thing or two and don't want to open any more issues.

Was there any real reason to reinvent the buildsystem from scratch instead of using buildroot/yocto/openwrt that can build rootfs from scratch?
Right now rootfs is in squashfs and changing things like adjusting hostname, enable/disable services and etc. can only be done using either rebuilding or via maintaining symlinks to /data. There seems to be overlayfs in kernel though. Why not mount /data on top of / for read/write access? (pretty much the way OpenWRT does usually).
The current Assistant implementation although works pretty good, is practically useless if the speaker itself is playing audio. Are there any plans/ideas on how to implement echo cancellation based on stream being played by the speaker?
And the next big problem is beamforming. Was there any research on that? Without that in a noisy room it would be very hard to pick up speach. According to /proc/asound:
```
access: MMAP_INTERLEAVED
format: S32_LE
subformat: STD
channels: 8
rate: 48000 (48000/1)
period_size: 2048
buffer_size: 4096
```
We have up to 8 microphones (6 seem to be actually wired), so theoretically ODAS should be possible at least on LX06. Although, we still have to figure out microphone configs. I have some crude scripts from RPI Respeaker HAT that can be used, but I'm no big DSP expert ;(

Source setup of building packages is from https://github.com/patrickkfkan/volumio-build-mpd . I wasn't into Buildroot at the time I started this project. It might be easier to configure for the user , but requires a lot of work to do to migrate now, and I prefer to improve or build other stuff rather than refactoring / migrating this.
Based in LX06 as an example, /data partition is about 11MB, and this flashing system acts as a "software update". Doing your suggested setup would allow for user customization without rebuilding the rootfs , sure, but I'm not risking at the moment changing this stuff. For sure any improvements are welcome .
Haven't played enough with MIC stuff. There are some software packages build to implement EAC, feel free to try or add new ones.

duhow / xiaoai-patch

Some questions #78