use Core Sans font

.github/workflows/ci.yml

@@ -15,6 +15,17 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          repository: mainmatter/core-sans-a-fonts
+          ssh-key: ${{ secrets.SSH_PRIVATE_KEY }}
+          path: core-sans-a-fonts
+      - name: Install Fonts
+        run: |
+          sudo cp -r core-sans-a-fonts/* /usr/local/share/fonts/
+          sudo fc-cache -f -v
+          fc-list | grep "Core Sans"
       - uses: actions-rust-lang/setup-rust-toolchain@v1
       - name: Install exercise plugin
         run: cargo install --path helpers/mdbook-exercise-linker

book/book.toml

@@ -33,8 +33,18 @@ metadata-file = "metadata.yml"
 
 [output.pandoc.profile.pdf.variables]
 # You can get these fonts here: https://fonts.google.com/selection?query=noto+color+
-mainfont = "Noto Serif"
-sansfont = "Noto Sans"
+mainfont = "CoreSansA45.ttf"
+mainfontoptions = [
+  "BoldFont=CoreSansA65.ttf",
+  "ItalicFont=CoreSansA45It.ttf",
+  "BoldItalicFont=CoreSansA65It.ttf"
+]
+sansfont = "CoreSansA45.ttf"
+sansfontoptions = [
+  "BoldFont=CoreSansA65.ttf",
+  "ItalicFont=CoreSansA45It.ttf",
+  "BoldItalicFont=CoreSansA65It.ttf"
+]
 monofont = "Noto Sans Mono"
 mainfontfallback = ["Noto Color Emoji:mode=harf"]
 sansfontfallback = ["Noto Color Emoji:mode=harf"]
@@ -63,8 +73,18 @@ pdf-engine = "lualatex"
 
 [output.pandoc.profile.paperback.variables]
 # You can get these fonts here: https://fonts.google.com/selection?query=noto+color+
-mainfont = "Noto Serif"
-sansfont = "Noto Sans"
+mainfont = "CoreSansA45.ttf"
+mainfontoptions = [
+  "BoldFont=CoreSansA65.ttf",
+  "ItalicFont=CoreSansA45It.ttf",
+  "BoldItalicFont=CoreSansA65It.ttf"
+]
+sansfont = "CoreSansA45.ttf"
+sansfontoptions = [
+  "BoldFont=CoreSansA65.ttf",
+  "ItalicFont=CoreSansA45It.ttf",
+  "BoldItalicFont=CoreSansA65It.ttf"
+]
 monofont = "Noto Sans Mono"
 mainfontfallback = ["Noto Color Emoji:mode=harf"]
 sansfontfallback = ["Noto Color Emoji:mode=harf"]