Connecting your client

Two ways to point your existing osu! installation at tegami.cc. You don't need a separate osu! installation — both just redirect the game's network traffic while you're using them.

First, create an account. You'll need a tegami.cc login before you can play online — register here if you haven't already.

Option A: launch with -devserver (recommended)

The osu! client has a built-in launch option for exactly this: point it at a domain and it connects to that server's subdomains directly — no IP address to look up, no hosts file, no third-party tool. Add -devserver tegami.cc as a launch argument:

Windows: right-click your osu! shortcut → Properties, and append -devserver tegami.cc to the end of the Target field (after the closing quote of the .exe path, separated by a space).
macOS: in a batch/launch script, add -devserver tegami.cc on the same line that starts osu!.exe. If launching the .exe directly (e.g. via a wrapper), add it to that program's argument/flags box.
Linux: pass it on the command line, e.g. ./osu.sh -devserver tegami.cc.

Keep a separate shortcut without the flag for the official servers — you'll need to log in again each time you switch between them, since it's a different server with a different session.

Option B: use a server switcher

A "server switcher" is a small third-party utility that does the same redirect as -devserver through a GUI, which some players find more convenient. Search for an osu! private server switcher compatible with your OS, point it at tegami.cc as the target domain, and use it to launch osu! whenever you want to play here.

Heads up: playing on a private server is entirely separate from your real osu! account and does not affect it.