error: Failed to start server. Is port 3002 in use?

[Quackzoer]

[server] server dev: 17 |   const stdio = new BunIo(Bun.stdin.stream());
[server] server dev: 18 |   rpc = new RPCChannel<ServerApi, ClientApi>(stdio, {
[server] server dev: 19 |     expose: serverApi,
[server] server dev: 20 |   });
[server] server dev: 21 | } else {
[server] server dev: 22 |   const server = Bun.serve({
                                                                        ^

Just copied the repo, did nothing else, nothing runs on this port. I honestly doubt that the problem lies in the repo but maybe you encountered it before. Tried changing ports, same story