A Minecraft server with no Java.

Two paths. The Servers tab in the launcher does it with buttons. On a VPS, horizon-server installs with one command. Same engine.

From the launcher

1. Servers, Create a server.
2. Name, a new world or a copy of yours, mode, difficulty, player cap.
3. Friends only or an open address. For Horizon players leave account checking off and keep the server on Tailscale or LAN.
4. Agree to the Minecraft EULA.
5. Start. The card shows TPS, MSPT, RAM, console, players, settings, backups.

The LAN address copies from Overview. For friends off the same Wi-Fi the launcher walks through Tailscale: invite, copy the name, limit access to Minecraft.

Online mode

A server that checks accounts is fine for vanilla players. Horizon clients cannot join that yet: server-side Microsoft login is still being finished. For a Horizon friend world keep offline mode and a whitelist.

Vanilla 26.3 can join a Horizon server. Realms do not work. Playing with friends without a dedicated server uses the invite code in the pause menu.