Update to node 20.

.github/workflows/site-ci.yml

@@ -12,10 +12,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.4
-      - uses: actions/setup-node@v2.1.5
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: '16'
+          node-version: '20.9.0'
       - name: Install dependencies
         working-directory: ./
         run: npm ci
@@ -53,12 +53,12 @@ jobs:
     needs: test
     if: github.ref == 'refs/heads/preview'
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v2.1.5
+      - uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '20.9.0'
       - name: Notify slack started
         env:
           SLACK_BOT_TOKEN: ${{ secrets.SLACK_NOTIFICATIONS_BOT_TOKEN }}
@@ -103,12 +103,12 @@ jobs:
     needs: test
     if: github.ref == 'refs/heads/main'
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v2.1.5
+      - uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '20.9.0'
       - name: Notify slack started
         env:
           SLACK_BOT_TOKEN: ${{ secrets.SLACK_NOTIFICATIONS_BOT_TOKEN }}

.ncurc.js

@@ -0,0 +1,4 @@
+module.exports = {
+  upgrade: true,
+  reject: ['carbon-components', 'carbon-components-react'],
+}

.npmrc

@@ -0,0 +1 @@
+legacy-peer-deps=true

.nvmrc

@@ -0,0 +1 @@
+20.9.0

README.md

@@ -1,6 +1,6 @@
 ## ernte-teilen.org
 
-This repository contains the source code of the [ernte-teilen.org project website](https://ernte-teilen.org). For the mapping and data management tools used on [ernte-teilen.org/karte](https://ernte-teilen.org/karte) and [solawi.ch](https://www.solawi.ch/vernetzungsplattform/), see the [main *teikei* repository](http://github.com/teikei/teikei).
+This repository contains the source code of the [ernte-teilen.org project website](https://ernte-teilen.org). For the mapping and data management tools used on [ernte-teilen.org/karte](https://ernte-teilen.org/karte) and [solawi.ch](https://www.solawi.ch/vernetzungsplattform/), see the [main _teikei_ repository](http://github.com/teikei/teikei).
 
 ## How to setup and run this project
 
@@ -11,20 +11,20 @@ This web application is built upon [React](https://reactjs.org/) and [Gatsby](ht
 1. Install the [Node.js runtime](https://nodejs.org/en/)
 2. Install the [Yarn package manager](https://yarnpkg.com/lang/en/docs/install/#mac-stable)
 
-*Note:* This web application uses [sharp](http://sharp.pixelplumbing.com) for image optimization. This requires `libvips`, which should come pre-installed on most UNIX-like systems. If not, use your package manager of choice to install `libvips-dev` before installing the node dependencies in the next step.
+_Note:_ This web application uses [sharp](http://sharp.pixelplumbing.com) for image optimization. This requires `libvips`, which should come pre-installed on most UNIX-like systems. If not, use your package manager of choice to install `libvips-dev` before installing the node dependencies in the next step.
 
 ### Install dependencies
 
-`yarn install`
+`npm install`
 
 ### Run in development
 
-`yarn dev`
+`npm run dev`
 
 ### Build for production
 
-`yarn build`
+`npm run build`
 
 ### Serve production build
 
-`yarn serve`
+`npm run serve`