mc-server-installer

Usage
Launch the TUI:

mc-server-installer
The TUI uses dialog to present a menu-driven interface.

NOTE: Optionally, open a screen session to keep the snap running indefinitely (for more info about screen see: https://linuxize.com/post/how-to-use-linux-screen/).

First-Time Setup:

Select Option 1: Download the latest server JAR (e.g., v1.20.4).
Select Option 2: Agree to the EULA (required once; generates eula.txt).
Main Menu Options:
``
MINECRAFT SERVER INSTALLER MENU

Installed version: <version>

Select from the following options:
1) Download latest (v<latest>) server.jar
2) Agree to the EULA
3) Edit the server.properties file
4) Run MC server with max 2GB of RAM
5) Run MC server with max 4GB of RAM
6) Run MC server with max 6GB of RAM
7) Run MC server with max 8GB of RAM
8) Run MC server with max 16GB of RAM
9) View README
10) Back up your world
11) Run custom RAM settings
12) Run custom jar file and RAM settings
13) Stop the server
14) Add player to whitelist (live)
15) Make player an operator (live)
16) Remove player from operators (live)
17) Add player to whitelist (offline)

``
Use arrow keys to navigate, Enter to select, or Quit to exit.
Running the Server:

Choose a run option (4–8, 11–12) to start the server in a tmux session.
Check $HOME/snap/mc-server-installer/current/server.log for output.
Live Management:

Option 14: Add a player to the whitelist while the server runs.

Option 15: Grant operator status to a player.

Option 16: Remove operator status from a player.

Commands are sent instantly; verify in server.log.
Offline Whitelist:

Option 17: Add a player to whitelist.json when the server is stopped.
Enable white-list=true in server.properties to enforce it.
Stopping the Server:

Option 13: Sends the stop command and cleans up the tmux session.
Configuration:

Option 3: Edit server.properties in $HOME/snap/mc-server-installer/current.
Customize ports, difficulty, etc., as needed.

Backup:
Option 10: Creates a .tar.gz backup in $HOME.

Learn more from: https://github.com/kz6fittycent/mc-server-installer