diff --git a/.github/workflows/linux-eic-shell.yml b/.github/workflows/linux-eic-shell.yml
new file mode 100644
index 0000000..c43b0d1
--- /dev/null
+++ b/.github/workflows/linux-eic-shell.yml
@@ -0,0 +1,400 @@
+name: Build against eic-shell
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - '*'
+  pull_request:
+  merge_group:
+  workflow_dispatch:
+    inputs:
+      organization:
+        description: 'eic-shell organization'
+        default: 'eicweb'
+        required: false
+        type: string
+      platform:
+        description: 'eic-shell platform'
+        default: 'eic_xl'
+        required: false
+        type: string
+      release:
+        description: 'eic-shell release'
+        default: 'nightly'
+        required: false
+        type: string
+      detector_version:
+        description: 'epic geometry version'
+        default: 'main'
+        required: false
+        type: string
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+  actions: read
+  pull-requests: read
+
+env:
+  organization: ${{ inputs.organization || vars.organization || 'eicweb' }}
+  platform: ${{ inputs.platform || 'eic_xl' }}
+  release: ${{ inputs.release || 'nightly' }}
+  detector_version: ${{ inputs.detector_version || 'main' }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        CXX: [g++, clang++]
+        CMAKE_BUILD_TYPE: [Release]
+    steps:
+      - uses: actions/checkout@v6
+      - uses: cvmfs-contrib/github-action-cvmfs@v5
+      - name: Build and install
+        uses: eic/run-cvmfs-osg-eic-shell@main
+        with:
+          organization: "${{ env.organization }}"
+          platform-release: "${{ env.platform }}:${{ env.release }}"
+          run: |
+            CXX="${{ matrix.CXX }}" cmake -B build -S . \
+              -DCMAKE_BUILD_TYPE=${{ matrix.CMAKE_BUILD_TYPE }} \
+              -DCMAKE_INSTALL_PREFIX=install
+            cmake --build build -j $(getconf _NPROCESSORS_ONLN) --target install
+      - name: Compress install directory
+        run: tar -caf install.tar.zst install/
+      - uses: actions/upload-artifact@v7
+        with:
+          name: install-${{ matrix.CXX }}-eic-shell-${{ matrix.CMAKE_BUILD_TYPE }}-${{ env.platform }}-${{ env.release }}
+          path: install.tar.zst
+          if-no-files-found: error
+
+  npsim-gun:
+    runs-on: ubuntu-latest
+    needs: build
+    strategy:
+      fail-fast: false
+      matrix:
+        particle: [pi, e]
+        detector_config: [epic_craterlake]
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/download-artifact@v8
+        with:
+          name: install-g++-eic-shell-Release-${{ env.platform }}-${{ env.release }}
+          path: .
+      - name: Uncompress install artifact
+        run: tar -xaf install.tar.zst
+      - uses: cvmfs-contrib/github-action-cvmfs@v5
+      - name: Produce simulation files
+        uses: eic/run-cvmfs-osg-eic-shell@main
+        with:
+          organization: "${{ env.organization }}"
+          platform-release: "${{ env.platform }}:${{ env.release }}"
+          setup: /opt/detector/epic-${{ env.detector_version }}/bin/thisepic.sh
+          run: |
+            export DETECTOR_CACHE=/opt/detector/epic-${{ env.detector_version }}/share/epic
+            export PATH=$PWD/install/bin${PATH:+:$PATH}
+            export LD_LIBRARY_PATH=$PWD/install/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
+            npsim --compactFile ${DETECTOR_PATH}/${{ matrix.detector_config }}.xml -G \
+              --random.seed 1 \
+              --gun.particle "${{ matrix.particle }}-" \
+              --gun.momentumMin "1*GeV" \
+              --gun.momentumMax "20*GeV" \
+              --gun.distribution "uniform" \
+              -N 100 \
+              --outputFile sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root \
+              -v WARNING
+      - uses: actions/upload-artifact@v7
+        with:
+          name: sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root
+          path: sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root
+          if-no-files-found: error
+      - name: Download previous artifact
+        uses: dawidd6/action-download-artifact@v21
+        with:
+          branch: ${{ github.event.pull_request.base.ref || github.ref_name }}
+          path: ref/
+          name: sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root
+          workflow: .github/workflows/linux-eic-shell.yml
+          workflow_conclusion: ""
+          if_no_artifact_found: warn
+      - name: Compare to previous artifacts
+        uses: eic/run-cvmfs-osg-eic-shell@main
+        with:
+          organization: "${{ env.organization }}"
+          platform-release: "${{ env.platform }}:${{ env.release }}"
+          setup: /opt/detector/epic-${{ env.detector_version }}/bin/thisepic.sh
+          run: |
+            export PATH=$PWD/install/bin${PATH:+:$PATH}
+            mkdir capybara-reports
+            shopt -s nullglob
+            capybara bara ref/sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root* sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root
+            mv capybara-reports sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}
+            touch .sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}
+      - uses: actions/upload-artifact@v7
+        with:
+          name: sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.capy
+          path: |
+            .sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}
+            sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}/
+          if-no-files-found: error
+
+  npsim-dis:
+    runs-on: ubuntu-latest
+    needs: build
+    strategy:
+      fail-fast: false
+      matrix:
+        beam: [5x41, 10x100, 18x275]
+        minq2: [1, 1000]
+        detector_config: [epic_craterlake]
+        exclude:
+          - beam: 5x41
+            minq2: 1000
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/download-artifact@v8
+        with:
+          name: install-g++-eic-shell-Release-${{ env.platform }}-${{ env.release }}
+          path: .
+      - name: Uncompress install artifact
+        run: tar -xaf install.tar.zst
+      - uses: cvmfs-contrib/github-action-cvmfs@v5
+      - name: Produce simulation files
+        uses: eic/run-cvmfs-osg-eic-shell@main
+        with:
+          organization: "${{ env.organization }}"
+          platform-release: "${{ env.platform }}:${{ env.release }}"
+          setup: /opt/detector/epic-${{ env.detector_version }}/bin/thisepic.sh
+          run: |
+            export DETECTOR_CACHE=/opt/detector/epic-${{ env.detector_version }}/share/epic
+            export PATH=$PWD/install/bin${PATH:+:$PATH}
+            export LD_LIBRARY_PATH=$PWD/install/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
+            url=root://dtn-eic.jlab.org//volatile/eic/EPIC/EVGEN/DIS/NC/${{ matrix.beam }}/minQ2=${{ matrix.minq2 }}/pythia8NCDIS_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_beamEffects_xAngle=-0.025_hiDiv_1.hepmc3.tree.root
+            npsim --compactFile ${DETECTOR_PATH}/${{ matrix.detector_config }}.xml \
+              -N 100 \
+              --inputFiles ${url} \
+              --random.seed 1 \
+              --outputFile sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}.edm4hep.root \
+              -v WARNING
+      - name: Upload ROOT output
+        uses: actions/upload-artifact@v7
+        with:
+          name: sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}.edm4hep.root
+          path: sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}.edm4hep.root
+          if-no-files-found: error
+      - name: Download previous artifact
+        uses: dawidd6/action-download-artifact@v21
+        with:
+          branch: ${{ github.event.pull_request.base.ref || github.ref_name }}
+          path: ref/
+          name: sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}.edm4hep.root
+          workflow: .github/workflows/linux-eic-shell.yml
+          workflow_conclusion: ""
+          if_no_artifact_found: warn
+      - name: Compare to previous artifacts
+        uses: eic/run-cvmfs-osg-eic-shell@main
+        with:
+          organization: "${{ env.organization }}"
+          platform-release: "${{ env.platform }}:${{ env.release }}"
+          setup: /opt/detector/epic-${{ env.detector_version }}/bin/thisepic.sh
+          run: |
+            export PATH=$PWD/install/bin${PATH:+:$PATH}
+            mkdir capybara-reports
+            shopt -s nullglob
+            capybara bara ref/sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}.edm4hep.root* sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}.edm4hep.root
+            mv capybara-reports sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}
+            touch .sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}
+      - uses: actions/upload-artifact@v7
+        with:
+          name: sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}.capy
+          path: |
+            .sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}
+            sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}/
+          if-no-files-found: error
+
+  merge-npsim-capybara:
+    runs-on: ubuntu-latest
+    needs:
+      - npsim-gun
+      - npsim-dis
+    steps:
+      - uses: actions/upload-artifact/merge@v7
+        with:
+          name: capybara-report
+          pattern: '*.capy'
+          delete-merged: true
+
+  list-open-prs:
+    uses: eic/actions/.github/workflows/list-open-prs.yml@main
+
+  get-docs-from-open-prs:
+    runs-on: ubuntu-latest
+    needs:
+      - list-open-prs
+      - merge-npsim-capybara
+    strategy:
+      matrix: ${{ fromJSON(needs.list-open-prs.outputs.json) }}
+      fail-fast: false
+      max-parallel: 4
+    steps:
+      - name: Download capybara artifact (other PRs)
+        id: download_capybara
+        uses: dawidd6/action-download-artifact@v21
+        if: github.event.pull_request.number != matrix.pr
+        with:
+          commit: ${{ matrix.head_sha }}
+          path: publishing_docs/pr/${{ matrix.pr }}/capybara/
+          name: capybara-report
+          workflow: ".github/workflows/linux-eic-shell.yml"
+          workflow_conclusion: "completed"
+          if_no_artifact_found: ignore
+      - name: Download capybara artifact (this PR)
+        uses: actions/download-artifact@v8
+        if: github.event.pull_request.number == matrix.pr
+        with:
+          name: capybara-report
+          path: publishing_docs/pr/${{ matrix.pr }}/capybara/
+      - uses: actions/upload-artifact@v7
+        with:
+          name: github-pages-staging-pr-${{ matrix.pr }}
+          path: publishing_docs/
+          if-no-files-found: ignore
+
+  get-docs-from-main:
+    runs-on: ubuntu-latest
+    needs:
+      - merge-npsim-capybara
+    steps:
+      - name: Download capybara artifact (in PR)
+        id: download_capybara
+        uses: dawidd6/action-download-artifact@v21
+        if: github.ref_name != 'main'
+        with:
+          branch: main
+          path: publishing_docs/capybara/
+          name: capybara-report
+          workflow: ".github/workflows/linux-eic-shell.yml"
+          workflow_conclusion: "completed"
+          if_no_artifact_found: ignore
+      - name: Download capybara artifact (on main)
+        uses: actions/download-artifact@v8
+        if: github.ref_name == 'main'
+        with:
+          name: capybara-report
+          path: publishing_docs/capybara/
+      - name: Populate capybara summary (on main)
+        if: github.ref_name == 'main' || steps.download_capybara.outputs.found_artifact == 'true'
+        run: |
+          echo "### Capybara summary for main" >> publishing_docs/capybara/index.md
+          find publishing_docs/capybara/ -mindepth 1 -maxdepth 1 -type d -printf \
+            "- [%f](https://eic.github.io/npsim/capybara/%f/index.html)\n" | sort >> publishing_docs/capybara/index.md
+      - name: Create capybara step summary (this PR)
+        if: github.ref_name == 'main'
+        run: |
+          cat publishing_docs/capybara/index.md >> $GITHUB_STEP_SUMMARY
+      - name: Ensure publishing_docs is non-empty
+        run: mkdir -p publishing_docs && touch publishing_docs/.keep
+      - uses: actions/upload-artifact@v7
+        with:
+          name: github-pages-staging-main
+          path: publishing_docs/
+          if-no-files-found: error
+          include-hidden-files: true
+
+  build-artifacts-page:
+    runs-on: ubuntu-latest
+    needs:
+      - get-docs-from-open-prs
+      - get-docs-from-main
+    if: |
+      always() &&
+      !cancelled() &&
+      !failure()
+    steps:
+      - name: Download artifacts for page
+        uses: actions/download-artifact@v8
+        with:
+          pattern: github-pages-staging-*
+          path: artifacts/
+      - name: Build static page content
+        run: |
+          mkdir -p _site
+          for dir in artifacts/github-pages-staging-*/; do
+            [ -d "$dir" ] && cp -r "$dir"/. _site/ || true
+          done
+          mkdir -p _site/pr
+          echo "### PRs" >> _site/pr/index.md
+          find _site/pr -mindepth 1 -maxdepth 1 -type d -printf "- [%f](%f/index.md)\n" | sort >> _site/pr/index.md
+      - name: Upload GitHub Pages artifact
+        uses: actions/upload-pages-artifact@v5
+        with:
+          path: _site/
+          retention-days: 7
+      - name: Populate capybara summary
+        if: ${{ github.event_name == 'pull_request' }}
+        run: |
+          echo "### Capybara summary for PR ${{ github.event.pull_request.number }}" >> capybara_${{ github.event.pull_request.number }}.md
+          [ -d _site/pr/${{ github.event.pull_request.number }}/capybara/ ] && \
+            find _site/pr/${{ github.event.pull_request.number }}/capybara/ -mindepth 1 -maxdepth 1 -type d -printf \
+              "- [%f](https://eic.github.io/npsim/pr/${{ github.event.pull_request.number }}/capybara/%f/index.html)\n" | sort >> capybara_${{ github.event.pull_request.number }}.md || true
+          echo "<sup><sub>Last updated $(TZ=America/New_York date -Iminutes) ${{ github.event.pull_request.head.sha }}</sub></sup>" >> capybara_${{ github.event.pull_request.number }}.md
+      - name: Create capybara step summary
+        if: ${{ github.event_name == 'pull_request' }}
+        run: |
+          cat capybara_${{ github.event.pull_request.number }}.md >> $GITHUB_STEP_SUMMARY
+      - name: Upload capybara summary
+        if: ${{ github.event_name == 'pull_request' }}
+        uses: actions/upload-artifact@v7
+        with:
+          name: capybara_${{ github.event.pull_request.number }}.md
+          path: capybara_${{ github.event.pull_request.number }}.md
+
+  deploy-artifacts-page:
+    needs:
+      - build-artifacts-page
+    if: |
+      always() &&
+      !cancelled() &&
+      !failure()
+    permissions:
+      pages: write
+      id-token: write
+      pull-requests: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        continue-on-error: false
+        uses: actions/deploy-pages@v5
+      - name: Find capybara comment
+        if: ${{ github.event_name == 'pull_request' }}
+        id: find_comment
+        uses: peter-evans/find-comment@v4
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          comment-author: 'github-actions[bot]'
+          body-includes: Capybara summary
+      - name: Fetch capybara summary
+        if: ${{ github.event_name == 'pull_request' }}
+        uses: actions/download-artifact@v8
+        with:
+          name: capybara_${{ github.event.pull_request.number }}.md
+      - name: Create or update capybara comment
+        if: ${{ github.event_name == 'pull_request' }}
+        uses: peter-evans/create-or-update-comment@v5
+        with:
+          comment-id: ${{ steps.find_comment.outputs.comment-id }}
+          issue-number: ${{ github.event.pull_request.number }}
+          body-file: capybara_${{ github.event.pull_request.number }}.md
+          edit-mode: replace