You need Java installed, sorry!

Building .vsix

1. cd <ThingML> && mvn clean install && cd language && mvn clean install
2. cp ./thingml-ide/target/thingml.ide-2.0.0-SNAPSHOT-ls.jar <thingml-vscode>/server/./thingml-ide/target/thingml.ide-2.0.0-SNAPSHOT-ls.jar
3. npm i -g vsce (only needed once, installed globally)
4. vsce package
5. code --install-extension thingml-vscode-0.0.1.vsix (or use VS Code GUI to install extension from .vsix file)