Require at least Node 20 (#478)

* Require at least Node 20

* Test all supported node versions

.github/workflows/test-deploy.yml

@@ -13,13 +13,16 @@ jobs:
   test-deploy:
     name: Test deployment
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [20, 22]
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4
         with:
-          node-version: 22
+          node-version: ${{ matrix.node-version }}
           cache: npm
           cache-dependency-path: './website/package-lock.json'
 
@@ -28,3 +31,4 @@ jobs:
 
       - name: Test build website
         run: npm run build
+        continue-on-error: false

README.md

@@ -7,7 +7,8 @@ Below are steps for initialising and reproducing this portal for development.
 ## Dependencies
 
 1.  The latest version of [Node](https://nodejs.org/en/download/) installed. 
-    > You have to be on Node >= 18.x
+    > You have to be on Node >= 20.x. This is the default version on Ubuntu 24.04 "Noble Numbat" or later,
+    and Debian 13 "Trixie" or later.
 
 ## Installation
 

website/package.json

@@ -35,6 +35,6 @@
     ]
   },
   "engines": {
-    "node": ">=18.0"
+    "node": ">=20.0"
   }
 }