CMS Fireworks image guide

images/cms/2026/README.md

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+```bash
+#build the alma8 image with rendering libraries
+apptainer build alma8.simg alma8.singularity
+apptainer exec -B /cvmfs alma8.simg /bin/bash
+
+#initialize CMSSW
+source /cvmfs/cms.cern.ch/cmsset_default.sh
+cmsrel CMSSW_15_0_5
+cd CMSSW_15_0_5
+cmsenv
+cd ..
+cmsShow -i CMSSW_15_0_5_mlpf_v2.6.0pre1_puppi_2372e2_small/cuda_False/JetMET0_mlpf/step3_RECO_1.root -c images/cms/2026/fireworks_reco.fwc
+```

images/cms/2026/alma8.singularity

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+Bootstrap: docker
+
+From: cern/alma8-base
+
+%post
+       yum --disablerepo=epel install -y dnf vim which
+       yum --disablerepo=epel install -y python3 python3-devel python3-pip
+       yum --disablerepo=epel install -y doxygen
+       yum --disablerepo=epel install -y motif motif-devel
+       yum --disablerepo=epel install -y wget
+       yum --disablerepo=epel install -y gcc gcc-c++ make patch bash tar gzip unzip bzip2 xz file gnupg2 git
+
+       yum --disablerepo=epel install -y mesa-libGL mesa-libEGL mesa-libGLU
+       yum --disablerepo=epel install -y libglvnd-opengl glx-utils libXpm libXext libXft
+       yum --disablerepo=epel install -y mesa-dri-drivers
+
+%environment
+    export LIBGL_ALWAYS_SOFTWARE=1
+    export LD_LIBRARY_PATH=/usr/lib64:$LD_LIBRARY_PATH
+
+%runscript
+    /bin/bash