Twitter has launched a new Tor onion service, a move that has been in the works for years but debuts as Russian President Vladimir Putin has clamped down on protests and independent media following his stalled invasion of Ukraine.

“On behalf of @Twitter, I am delighted to announce their new @TorProject onion service,” tweeted Alec Muffett, a security researcher who developed the Enterprise Onion Toolkit. EOTK, as it’s also known, allows websites to quickly add onion services.

“This is possibly the most important and long-awaited tweet that I’ve ever composed,” he added.