#209 added initial support for commands using lieutenant and implemented /tp and /gamemode. What's left to do:

• Implement all commands in Vanilla (only those present in Java Edition)
• Ensure that messages are consistent with Vanilla (this is certainly not the case right now)
• Implement target selector arguments
• Send the command node graph to players upon joining

For newcomers to the project, implementing a command is a good way to start. The basic process is:

• Locate the Minecraft Wiki page for the command and read through it, so you understand the command well (skip any Bedrock-specific sections).
• Go into server/commands/src/impls.rs and implement the command.
  • The tp implementation is a good example of how a command could be implemented.
  • If you need a new argument type (for example, a parsed gamemode or a UUID), implement it in server/commands/src/arguments.rs. EntitySelector and ParsedGamemode are useful examples to see how this is done.

If you need any help, you are welcome to ask as many questions as you need on our Discord server :)