Switch to yarn

.build.yml

@@ -4,7 +4,7 @@ packages:
   - nixos.lightningcss
   - nixos.neocities-cli
   - nixos.nodejs
-  - nixos.nodePackages_latest.npm
+  - nixos.yarn
   - nixos.sass
 environment:
   repo: vegan-prestwich
@@ -15,11 +15,11 @@ secrets:
 tasks:
   - build: |
       cd $repo
-      npm install --verbose fast-glob
+      yarn add fast-glob @11ty/eleventy --verbose
       mkdir -p _site/style
       sass style/style.scss _site/style/style.css
       lightningcss --minify --targets '> 0.25%, not IE 11' _site/style/*.css -o _site/style/*.css
-      npx @11ty/eleventy
+      yarn eleventy
       html-minifier --input-dir _site --output-dir _site --collapse-whitespace --file-ext html
       set +x
       export NEOCITIES_API_KEY=$(cat /home/user/.neocities/vegan-prestwich)