https://www.bbc.co.uk/news/articles/cy511nln2xvo
The regularization is these days all over the news here, because the decree is published today and the administrative process will open tomorrow on Thursday.
We'll see how the logistics will play out, but it seems that they try a new model, with online-applications and a heavy involvement of the public postal service (who incorporated staff specifically for this).
Of course, a bottleneck are also the embassies where people need to get documents before handing them over to the Spanish administration.
Time will tell and of course a lot could have been done better, but I am cautiously optimistic.
Some details and criticism about the extraordinary regularization of the 500 000 migrants in Spain.
https://mastodon.social/@ruinas/116408313272990510 (in Spanish)