Can you use Elderberry wood in a Hugel?

Good day Permies!

I recently had to give my Elderberry a serious haircut! It has died back over 90% over the last 2 years. I have a ton of branches now! Can I put them in a hugel or will the cyanogenic glycosides be a concern?

Here is the carnage. The stubble in the centre is what is left of the bush. As you can see, there is several large piles of potential carbon!

Over here a couple years ago they were saying, "Yes!" https://permies.com/t/137612/Elder-tree-Sambucus-safe-gelkultur