tabularray (CTAN: Package tabularray) provides longtblr environment that is called as 

---
\begin{longtblr}[various-table-options]{column and row specifications}

\end{longtblr}
---

Adding something like the following to orgmode tables makes them export nicely as longtblr

---
#+ATTR_LATEX: :environment longtblr
#+ATTR_LATEX: :align width=0.8\textwidth,colspec={lX[2,r]X[3,r]X[r,bg=gray9]}
#+ATTR_LATEX: :booktabs t
---

Everything seems to work very well with orgmode except that I cannot figure out how to pass [various table options] from orgmode. These table options include, most importantly, table notes.

I normally use threeparttable for table notes, but longtblr does not seem to work with threeparttable and has its own syntax for table notes.

Any advice on how to pass [table-options] to longtblr environment?

Vikas