There are implementations which approximate bittorrent written entirely in javascript.  It&#x27;s possible.<p>However, I really doubt infrastructure costs dominate SoundCloud&#x27;s money problems.  Significant, yes. But a major engineering overhaul developing an entirely different architecture for distribution which might either not work or alienate customers is probably not an appropriate move when in that situation.<p>Maybe it could be something to do as a clean shut-down to help things live on (an amazing thing when dying companies do things like this to end well) but not ... expected.