Software in the HPC# 1. Module System 1.1. Where can I find installed software? 1.2. How can I find specific Python or R packages? 1.3. How can I find old software? 1.4. How can I find legacy software? 1.5. The toolchain of software packages 1.6. European Environment for Scientific Software Installations 2. Graphical applications 2.1. X11 forwarding 2.2. Remote desktop sharing 3. Specific Use Cases 3.1. AlphaFold 3.2. Ansys Fluent 3.3. CESM/CIME 3.4. ColabFold 3.5. CP2K 3.6. GAMESS-US 3.7. GAP 3.8. Gaussian 3.9. GaussView 3.10. GROMACS 3.11. MATLAB 3.12. matplotlib 3.13. OpenFold 3.14. ORCA 3.15. PyTorch 3.16. R 3.17. SRA-Toolkit 3.18. Stata 4. Installing additional software 4.1. Compiling and testing your software on the HPC 4.2. Installing additional Python packages 4.3. Installing additional R packages 4.4. Installing additional Perl packages 4.5. Installing additional Julia packages 4.6. Installing additional packages with conda