Testing Adrian Chad's new RPI image for Raspi 400, 4B models with the VCHIQ HDMI Audio update

Is there a place to download a testing RPI image of FreeBSD 14.3 or 15.0 
for hearing the HDMI Audio from the VCHIQ audio subsystem inside the 
BCM2711 chip.   Will the Raspberry Pi 5  HDMI audio subsystem be 
available in the future for testing a binary image?

A few times during playing MP3 audio files, or video,  the audio cache 
buffer would become full and accept no more audio input bytes.  I even 
tried cycling through the values 0,1,2,3 to select the audio output 
source,  yet nothing would clear and freeup  the audio interface, except 
for a complete reboot.   Does anyone have tools to examine the VCHIQ 
state and register byte values, to see what is causing the hangup?   
Once the buffer is full, no tool to clear the blockage.  Will some one 
right a simple Arm64 command to dump all the records and fix the 
problem, SEE if there is missing interrupt register values?  RustPoPro 
bare metal rust implementation, could be modified and used to provide 
visibility. Your thoughts?   I would like to download an image and burn 
into a microSD card, 64GB.  Then plug into my Raspi 4B hardware and test 
that sound plays and does not get a buffer flow condition.   Need simple 
tool to examine  registers to see why the buffer is locked, until a full 
power off reset is performed.

Fred L. Finster