⚡ File sharing progressive web app built using WebTorrent and WebSockets - GitHub - blenderskool/blaze: ⚡ File sharing progressive web app built using WebTorrent and WebSockets
That could be, also you can use webttorrent, qbittorrent (Lan connections are fast), syncthing (a bit more complicated)... I don't know how, but these programs sometimes find the way to connect to other peers even with restricted ports...