I want to try this but every time I try to join either from my mobile or desktop (both on WiFi), I get this error: "That callsign belongs to another player. Pick a different one." that comes from the Railway-hosted wss://worldstrike.fun/ws

Here's a full response with headers:

HTTP/1.1 101 Switching Protocols Connection: Upgrade Sec-Websocket-Accept: GeKaJfsfiYd9s2vROz7kMU3RDWA= Sec-Websocket-Extensions: permessage-deflate; server_no_context_takeover; client_no_context_takeover server: railway-hikari Upgrade: websocket X-Railway-Request-Id: UA8DKXk_TKiusD2aYqVb7A x-hikari-trace: lhr1.7mfs x-railway-edge: lhr1

{"type":"error","message":"That callsign belongs to another player. Pick a different one."} Connection Closed: 1005