Simplify CI setup

.github/workflows/deploy-github-page.yml

@@ -2,6 +2,7 @@ name: Build and Deploy
 
 on:
   workflow_dispatch:
+  pull_request:
   push:
     branches:
     - main
@@ -82,12 +83,15 @@ jobs:
 
   deploy:
     needs: build
+    if: github.ref == 'refs/heads/main'
     permissions:
       pages: write
       id-token: write
+
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
+
     runs-on: ubuntu-24.04
     steps:
       - name: Deploy to GitHub Pages

.github/workflows/main.yml

@@ -12,9 +12,9 @@ on:
 
 jobs:
   unix:
-    
+
     runs-on: ${{ matrix.os }}
-     
+
     strategy:
       fail-fast: false
       matrix:
@@ -55,11 +55,11 @@ jobs:
         run: |
           cd test
           pytest .  --reruns 5
-          
+
   win:
 
    runs-on: ${{ matrix.os }}
-    
+
    strategy:
      fail-fast: false
      matrix:
@@ -113,53 +113,3 @@ jobs:
          call C:\Users\runneradmin\micromamba-root\condabin\micromamba.bat activate xeus-r
          cd test
          pytest -sv test_xr_kernel.py
-  
-  emscripten_wasm:
-
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        emsdk_ver: ["3.1.45"]
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Install mamba
-        uses: mamba-org/setup-micromamba@v2
-        with:
-          environment-file: environment-wasm-build.yml
-          environment-name: xeus-r-wasm-build
-
-      - name: Build xeus-r
-        shell: bash -l {0}
-        run: |
-          micromamba create -f environment-wasm-host.yml --platform=emscripten-wasm32
-
-          mkdir build
-          pushd build
-
-          export EMPACK_PREFIX=$MAMBA_ROOT_PREFIX/envs/xeus-r-wasm-build
-          export PREFIX=$MAMBA_ROOT_PREFIX/envs/xeus-r-wasm-host
-          echo "PREFIX=$PREFIX" >> $GITHUB_ENV
-          export CMAKE_PREFIX_PATH=$PREFIX
-          export CMAKE_SYSTEM_PREFIX_PATH=$PREFIX
-
-          emcmake cmake \
-            -DCMAKE_BUILD_TYPE=Release                        \
-            -DCMAKE_PREFIX_PATH=$PREFIX                       \
-            -DCMAKE_INSTALL_PREFIX=$PREFIX                    \
-            -DXEUS_R_EMSCRIPTEN_WASM_BUILD=ON                 \
-            -DCMAKE_FIND_ROOT_PATH_MODE_PACKAGE=ON            \
-            ..
-
-          emmake make install
-
-      - name: Jupyter Lite integration
-        shell: bash -l {0}
-        run: |
-          micromamba create -n xeus-lite-host jupyterlite-core
-          micromamba activate xeus-lite-host
-          python -m pip install jupyterlite-xeus
-          jupyter lite build --XeusAddon.prefix=${{ env.PREFIX }}