Download node from nodejs.org, npm should be packaged with it.
Once installed run
npm i -g @wocketwun/tw.ts
https://www.npmjs.com/package/@wocketwun/tw.ts
For a Terminal UI based version check out: https://github.com/WocketSesh/TeeworldsTUI
From your command prompt you can run the following to start the repl, the recommended way to use the cli.
every command from the repl can have the starting "tw" omitted
tw repl
To create / combine gameskins (no repl)
Your asset path would typically be DDNetFolder/assets/game
tw asset <path/to/assets>
To start or disable the notifier interval
tw notifier
notifier (repl)
To manage friends
tw friends
friends (repl)
To import DDNet friends (no repl support yet)
tw import
To find players / clans servers
tw find
find (repl)