explicit node 14 requirement

.gitpod.DockerFile

@@ -0,0 +1,11 @@
+FROM gitpod/workspace-full:latest
+
+RUN bash -c ". /home/gitpod/.sdkman/bin/sdkman-init.sh \
+             && sdk install java 8.0.275.open-adpt"
+
+RUN bash -c ". .nvm/nvm.sh \
+    && nvm install 14 \
+    && nvm use 14 \
+    && nvm alias default 14"
+
+RUN echo "nvm use default &>/dev/null" >> ~/.bashrc.d/51-nvm-fix 

.gitpod.yml

@@ -0,0 +1,4 @@
+image:
+  file: .gitpod.DockerFile
+tasks:
+- command: npm install

src/index.js

@@ -1,3 +1,9 @@
+if (typeof process !== 'undefined' && parseInt(process.versions.node.split('.')[0]) < 14) {
+  console.error('Your node version is currently', process.versions.node)
+  console.error('Please update it to a version >= 14.x.x from https://nodejs.org/')
+  process.exit(1)
+}
+
 const mc = require('minecraft-protocol')
 const EventEmitter = require('events').EventEmitter
 const path = require('path')