As of this week ZeroSSL.com is a part of apilayer family. Apilayer team will take the development of the project further, and hopefully provides some new and exciting features over time. It will also be providing the support of the web client (SSL Certificate Wizard) and other tools available at ZeroSSL.com (such as Self-Signed Certificate Generator and CSR Generator). I am sure ZeroSSL.com is in good and capable hands and it will be well taken care of, as always.
P.S. I can still be reached regarding my other personal projects, such as Perl client/library, Windows binaries and the Docker image.