Undoubtedly the spookiest new gTLDs coming to life in the coming weeks, .boo is being officially launched by the Google Registry. The Early Access Period (EAP), where anyone is allowed to register names in the extension (but for an extra fee) will start on November 8, 2022, while the General Availability will debut a week later, on November 15, 2022.
Google notes that a few significant names have already been snatched on the TLD, whether they are “spooky or romantic.” Among them, Halloween.boo will sell costumes and accessories for alloween parties, while Treats.boo will propose gluten and allergy-free candies.

Full source:
https://blog.google/outreach-initiatives/entrepreneurs/spooky-or-sweet-5-websites-getting-their-boo-on/