It is just a test to see whether the block editor loads, because it is
not so easy: it requires specific versions of the dependencies, or it
will fail with some idiotic syntax errors after failing to “convert” the
libraries code.
And it is impossible to use with Vite: it refuses to accept incorrect
SCSS code, that WordPress has a lot of, with things as `::after::after`.
What i did is write my package.json, replace the generated lock file
with the one from Isolated Block Editor, and npm install again, to
“clean up” the lock file.
