NetherPerms

NetherPerms is a modern permissions plugin for PocketMine-MP. It lets server admins control what features players can use by creating groups and assigning permissions.

It is:

Fast — written with performance and scalability in mind.

Easy to use — set up permissions using commands, directly in config files, or using the in-game editor.

Extensive — a rich set of customization options and settings to suit your server.

Free — available at no cost, permissively licensed so it can remain free forever.

Storage Backends

NetherPerms can store data in two ways: "SQLite" and "YAML". You can change this in the storage setting of config.yml.

The default option is SQLite.

Backend Pros Cons

SQLite (single DB file) Fast and robust; WAL journaling; fewer files to manage; good durability Not as friendly for hand-editing; requires SQLite3 extension (bundled with PMMP builds)

YAML (per-entity files) Human-readable; easy to edit; simple to version with Git Many small files; slower I/O on some hosts; filesystem-bound concurrency

Commands

A full list with examples and permissions is in COMMAND_USAGE.md.

Highlights:

Groups: create/delete/rename/clone, permissions, parents, weights, meta, list members, show tracks.
Users: show info, parents (add/set/remove/switchprimarygroup), permissions, meta, primary group (show/set/unset), temporary permissions.
Tracks:
Legacy syntax: /np track set ... and /np track show .
Preferred syntax: /np track info|set|rename|clone|insert|remove|append ....
Promote/demote along a track: /np promote , /np demote .

Contexts

A context is a set of conditions where a permission or parent applies:

Supported keys: world, gamemode.
Format: key=value pairs separated by commas, e.g. world=world,gamemode=survival.

If no context is provided, the change applies globally.

Wildcards and Temporary Permissions

Wildcards: Nodes ending with .* expand to all registered permissions with that prefix (PMMP registry), without overriding explicitly set nodes.
Temporary permissions: Grant user permissions that expire after a duration (e.g., 10m, 1h30m, 2d3h).

Installation

Place the plugin into your plugins/ directory.
Configure groups, users, and tracks via commands.

Troubleshooting

Group deletion doesn’t remove the YAML file:
Ensure you run a command that saves data (most management commands do), or restart/reload; the per-entity saver removes stale files.
Promote/Demote says “Track not found”:
Verify the track exists and contains at least two ordered groups.
Permission isn’t applying:
Check priority and meta, and whether contexts limit the scope (world/gamemode).

License

MIT