Facebook is building a standalone app that incorporates ideas from Houseparty, the group video chat app that rose from the ashes of Meerkat, The Verge has learned.

The app, which has the working name Bonfire, was recently demonstrated for employees. It is being targeted for a fall release, according to a person familiar with the matter.

“We don’t have anything to share at this time,” a Facebook spokeswoman said.

Facebook’s move comes two years after Life On Air, which had helped usher in a new era of live broadcasting with its app Meerkat, pivoted to group video chat. The company’s founder, Ben Rubin, observed that most people never broadcasted more than a handful of times — whether on Meerkat or its eventual competitors, Facebook Live and Twitter-owned Periscope. And so Rubin and his team built Houseparty, which notifies a user’s friends whenever they have the app open, inviting them to hang out virtually on their smartphones.

The app took off among teenagers, and by November 2016 it had 1.2 million users spending 20 million minutes a day using it.