Jack Dorsey, co-founder and CEO of social media network Twitter and founder and CEO of financial services company Square, has confirmed he is planning to integrate Bitcoin’s Lightning Network sidechain with at least one of his businesses.

On Friday, Dorsey responded to a question from Twitter user Deyonté, who had requested that Dorsey integrate the Lightning Network into Twitter or BlueSky — the decentralized social network Twitter has devoted manpower to developing since 2019.

In response, Dorsey responded, “Only a matter of time.”

Dorsey’s comment appears intentionally vague, with the remark appearing open to be interpreted as confirming that either BlueSky or Twitter, or even both companies, could be eying a Lightning integration.

Twitter user Mklad also suggested Dorsey’s pro-Lightning remarks could relate to Square’s recent acquisition of Jay-Z’s failed music streaming platform, Tidal.

Dorsey’s tweet comes amid recent moves from Square to expand its digital asset operations.

Earlier this month, Dorsey revealed that Square intends to develop an open-source non-custodial Bitcoin hardware wallet. The following day, Cointelegraph reported that Square had revealed a partnership with blockchain infrastructure firm Blockstream, with Square planning to invest $5 million into a solar-powered Bitcoin mining facility.

Related: Green Bitcoin: The impact and importance of energy use for PoW

Dorsey has long argued that Bitcoin (BTC) mining incentivizes adoption and innovation in renewable energy, with Square committing $10 million toward its Bitcoin Clean Energy Investment Initiative in December.