I think, it is better to create a new thread to discuss next bunch of
questions related to the inline special block feature.
Previous thread is rather huge:
Juan Manuel Macías. Experimental public branch for inline special
blocks. Fri, 01 Mar 2024 20:34:35 +0000.
https:list.orgmode.org/87wmql6690....@posteo.net
In particular it contains detailed overview
Ihor Radchenko. Re: Experimental public branch for inline special
blocks. Tue, 09 Apr 2024 08:52:38 +0000.
https://list.orgmode.org/875xwqj4tl.fsf@localhost
An earlier closely related thread:
Juan Manuel Macías. [proof of concept] inline language blocks. Tue, 20
Feb 2024 20:35:04 +0000.
https://list.orgmode.org/87msrudgcn....@posteo.net